2. Examine Case Study – 600 Mwe
Nuclear Plant
Sources of Capacity Losses
Performance Modeling Tool
Prediction & Analysis of Capacity
Losses
Conclusions & Recommendations
Objectives

3. 6,216 W 0 W
516,005 W
1190.21 H
10,482,117 W 0 W
1000.00 P 1190.21 H
0.42 %M
7,200 W 1190.21 H
8,940 W 7,674,442 W 108,340 W REACTOR CORE POWER = 2535.800 MWT
1274.78 H 1274.78 H RECIRC. PUMP POWER = 7.800 MWT
0 W CLEANUP LOSSES = 3.300 MWT
2,124 W FP POWER RADIATION LOSSES = 1.100 MWT
11,011,538 W EFF.=76.5 % 7933 KW NSSS THERMAL POWER = 2539.200 MWT
1055.00 P PB = 950.62 TOTAL SHAFT OUTPUT = 878458 KW
1190.21 H P1STG = 702.28 1024.94 H GEN. POWER FACTOR = 0.90
0.100% H1STG = 1169.44 3.78 IN.HGA GEN. H2 PRESSURE = 60.0 PSIG
DELP = 4.94 % 7,566,102 W MECHANICAL. LOSSES = 3783 KW
9,631 W 9,631 W 186.00 P PB = 177.88 GEN. LOSSES = 10653 KW
1086.97 H 1086.97 H 507.76 F HB = 1274.78 GENERATOR OUTPUT = 864022 KW
1274.78 H NET TURBINE HEAT RATE = 10028 BTU/KWHR
993.00 P 110.69 P 66.90 P 20.53 P 10.78 P 5.60 P GROSS TURBINE HEAT RATE =9936 BTU/KWHR
369.36 P 578.23 P 578.23 P 1190.21 H TD = 35 F 1232.66 H 1192.57 H 1112.23 H 1073.91 H 1043.24 H
1126.33 H 1156.07 H 1156.07 H 1113.96 H 1079.41 H 1063.28 H
358.28 P 560.88 P 560.88 P 192.00 P 985.06 P 107.37 P 64.89 P 19.92 P 5.43 P ELEP = 1004.53 H
CORE THERMAL 1086.97 H 46,910 W 542.76 F 187.27 P 498,211 W UEEP = 1009.76 H 3.69 IN.HGA
POWER = 669,994 W 1190.21 H 1235.05 H 12,928 W 136,976 W 5,989,464 W
2535.80 MWT 1126.33 H 406,928 W 453,838 W 556.96 P TD = 40 F 197.68 h 135.01 h
206,290 W 412,580 W 1156.07 H 1159.60 H 552.50 P 9,631 W 425,589 W 217,178 W 7,200 W 0 W 108,340 W
461.49 h 477.42 F 1086.97 H 1113.96 H 1063.28 H 179.00 h 179.00 h 1024.94 H
16,683 W 234,548 W 469,095 W 461.49 h 188.56 P
540.24 h 540.24 h 41,258 W 1197.52 H CF, % = 85.00
0 W 8,780,732 W 8,821,990 W 190.65 P 38,547 W GPM = 352,600
1086.97 H 1087.31 H 13.08%M 215,138 W 164.87 h 0 W 16,683 W CWT, F = 77.00 F
MSEFF = 100.00 % 32,071 W 1181.86 H 206.70 H 3.69 IN.HGA HWT, F = 109.27 F
1,147,547 W 1079.41 H
30,000 W 0 W 573,774 W 350.26 h
0 W 350.26 h 8,140 W 0 W
573,774 W 219,258 W 1181.86 H 0 W
577,453 W 0 W 1086.94 H
0 W 1086.97 H HW=122.50 F
206,290 W 0 W 8,342 W
461.49 h 288,726 W 573,774 W 206.70 h
10,981,538 W 350.26 h
426.03 F 234,548 W 107,569 W 16,683 W 11,025,018 W
404.24 h 334,997 W 540.24 h 1232.66 H 253,921 W 212,386 W 1086.97 H 5,340 W 218.92 P
348.88 P 3,986 W 183.61 P 99.28 P 60.96 P 1190.56 H 19.60 P 5.40 P 683.63 H 13,480 W 1181.86 H 6,216 W 122.83 F
TD = 5.39 F TD = 4.96 F TD = 4.82 F TD = 4.69 F TD = 4.82 F TD = 3.07 F 1190.21 H 91.34 h
5,490,769 W 5,490,769 W 569.10 P 5,486,783 W
426.04 F 371.14 F 1141.11 P 369.74 F 322.48 F 289.06 F 222.07 F 162.40 F 141.02 F 652.32 P 123.42 F
404.24 h 345.48 h 343.20 h 293.83 h 259.49 h 191.62 h 131.86 h 110.56 h 124.64 F 91.94 h
431.42 F 374.71 F 327.30 F 293.75 F 226.89 F 165.47 F 94.25 h
DC = 11.4 F DELTAH =2.47 DC = 10.4 F DC = 9.7 F DC = 9.1 F DC = 9.4 F DC = 7.1 F 6,216 W
178.92 P 5,340 W 130.00 h
0 W 124.01 F 179.00 h
92.42 h
1,069,031 W 2,231,895 W
775,835 W 332.84 F 298.80 F 171.84 F
382.58 F 303.90 h 268.54 h 139.85 h
356.52 h 234,548 W 212,386 W
0 W 206,290 W 540.24 h 0 W 0 W 0 W 0 W 165.47 F
461.49 h 133.43 h
0 W
0 W 0 W 0 W 7,971 W
DELTAH =1.83
0 W
0 W 0 W 219,258 W 0 W
206,290 W 288,726 W 1086.94 H
461.49 h 1086.97 H 178.92 P
234,548 W 573,774 W 107,569 W 253,921 W 8,342 W 124.01 F
540.24 h 350.26 h 1232.66 H 1190.56 H 206.70 h 92.42 h
334,997 W 212,386 W
348.88 P 3,986 W 183.61 P 99.28 P 60.96 P 19.60 P 5.40 P 683.63 H
TD = 5.39 F TD = 4.96 F TD = 4.82 F TD = 4.69 F TD = 4.82 F TD = 3.07 F
5,490,769 W 5,490,769 W 569.10 P 5,486,783 W
426.04 F 371.14 F 1141.11 P 369.74 F 322.48 F 289.06 F 222.07 F 162.40 F 652.32 P
404.24 h 345.48 h 343.20 h 293.83 h 259.49 h 191.62 h 131.86 h 110.56 h 124.64 F
431.42 F 374.71 F 327.30 F 293.75 F 226.89 F 165.47 F 94.25 h
DC = 11.4 F DELTAH =2.47 DC = 10.4 F DC = 9.7 F DC = 9.1 F DC = 9.4 F DC = 7.1 F
775,835 W 1,750,373 W 2,004,295 W 2,231,895 W
382.58 F 332.84 F 298.80 F 231.13 F 171.84 F
356.52 h 303.90 h 268.54 h 199.56 h 139.85 h 212,386 W
0 W 0 W 0 W 0 W 0 W 165.47 F
133.43 h
0 W
PIV = 183.95
4,900,118 W
99.74 h
4,470 W
1086.97 H
141.02 F
2,231,895 W
131.75 F
0 W
1,069,031 W
231.13 F
199.56 h
2,004,295 W1,750,373 W
4,470 W
212,386 W
131.75 F
99.74 h
2,231,895 W
212,386 W
2,231,895 W
30,000 W
2,231,895 W
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
D
REACTOR
A
T O SJAE
B
T O CRD
RHTR.1
RHTR.2
T O RFPT
A
RFP
TURBINE
TO RECOMBINER
TO REBOILER
VENT FLOW
VENT FLOW
TO CONDENSER
C
T O RBLR
FROM
REBOILER
T O HT RS
EH-2A,B
B
FROM RFPT
FROM
RECOMBINER
FROM
RADWAST E
FROM MAIN
STEAM
T O
RADWAST E
MS
DRAIN
TANK A
FROM
RFP
TO COND. A
FROM MSR
DRN.TANKS
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A DC 1A
T O COND.
ST OR.T K.
RFP
SEALS
EH-2A
TO RFP
SEALS
T O 1ST G &
2ST G RHT R.
DRN. T KS
TO MS
DRN.TKS.
T O
COND.A
T O COND. A
EMER. HTR. DRNS.
EH-6B EH-5B EH-4B EH-3B EH-1B DC 1B
RFP
SEALS
EH-2B
T O
COND. B
T O COND. B
T O
COND. A
C
FROM
RFP
T O
COND. A
FROM
RFP
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. A
T O
COND. A
T O
COND. A
T O
COND. A
MS
DRAIN
TANK B
T O
COND. A
FROM BOOST ER
PUMPS
A
BP
BP
D
RFP
B
T O
COND. A
T O
COND. A
FROM
RFP
FROM BOOST ER
PUMPS
FROM
REBOILER
Baseline Heat Balance for Case Study

4. Reactor Thermal Power Fixed at
Licensed Value of 2536 Mwt
Circulating water Inlet Temp.
Fixed at 77.0 F (Design)
Feedwater Heater TTD's & DCA’s
Predicted Using Data Sheets
Steady-State Conditions, No
Cycle Isolation Losses
Performance Modeling

5. 1. Main Steam Bypass
2. Moisture Separator Drains to
Condenser
3. 1Stg Reheater Drains to Condenser
4. 2Stg Reheater Drains to Condenser
5. Heater Drains to Condenser
6. Thermal Power
Sources of Capacity Loss

6. LEGEND
MAIN STEAM BYPASS
MOISTURE SEPARATOR DRAIN TO CONDENSER
1STG. REHEATER DRAIN TO CONDENSER
2STG. REHEATER DRAIN TO CONDENSER
HEATER DRAINS TO CONDENSER
REACTOR THERMAL POWER
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
REACTOR
1
T O CRD
RHTR.1
RHTR.2
RFP
TURBINE
TO CONDENSER
FROM
REBOILER
T O HT RS
EH-2A,B
FROM
RECOMBINER
FROM
RADWAST E
T O
RADWAST E
MS
DRAIN
TANK A
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A
DC 1A
T O COND.
ST OR.T K.
EH-2A
EH-6B EH-5B EH-4B EH-3B EH-1B
DC 1B
EH-2B
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
MS
DRAIN
TANK B
BP
BP
RFP
B
FROM
REBOILER
T O RBLR
3
4
3
4
2
2
5
5 5
5
5 5 5
5
5
555
6
TO RECOMBINER
1
2
3
4
5
6
T O RHT R.
DRN. T KS.
FROM
RFP
FROM
RFP
FROM
RFP
FROM
RFP
FROM BOOST ER
PUMPS
T O MS
DRN. T KS.
FROM BOOST ER
PUMPS
Sources of Capacity Loss

7. 6,216 W 0 W
517,307 W
1190.21 H
10,358,969 W 0 W
1000.00 P 1190.21 H
0.42 %M
7,200 W 1190.21 H
104,822 W 8,967 W 7,577,271 W 108,317 W REACTOR CORE POWER = 2535.800 MWT
1275.02 H 1275.02 H RECIRC. PUMP POWER = 7.800 MWT
0 W CLEANUP LOSSES = 3.300 MWT
2,098 W FP POWER RADIATION LOSSES = 1.100 MWT
10,994,514 W EFF.=76.5 % 7903 KW NSSS THERMAL POWER = 2539.200 MWT
1055.00 P PB = 949.11 TOTAL SHAFT OUTPUT = 867112 KW
1190.21 H P1STG = 694.03 1026.05 H GEN. POWER FACTOR = 0.90
0.100% H1STG = 1168.88 3.81 IN.HGA GEN. H2 PRESSURE = 60.0 PSIG
DELP = 5.09 % 7,468,953 W MECHANICAL. LOSSES = 3783 KW
9,514 W 9,514 W 183.67 P PB = 175.65 GEN. LOSSES = 10455 KW
1086.45 H 1086.45 H 507.76 F HB = 1275.02 GENERATOR OUTPUT = 852874 KW
1275.02 H NET TURBINE HEAT RATE = 10159 BTU/KWHR
993.00 P 109.24 P 65.96 P 20.22 P 10.62 P 5.51 P GROSS TURBINE HEAT RATE =10065 BTU/KWHR
364.91 P 571.54 P 571.54 P 1190.21 H TD = 35 F 1232.83 H 1192.64 H 1112.25 H 1073.96 H 1043.40 H
1125.80 H 1155.54 H 1155.54 H 1113.99 H 1079.54 H 1063.36 H
353.96 P 554.40 P 554.40 P 189.59 P 985.06 P 105.97 P 63.98 P 19.61 P 5.35 P ELEP = 1005.69 H
CORE THERMAL 1086.45 H 47,028 W 542.76 F 184.92 P 497,166 W UEEP = 1010.83 H 3.72 IN.HGA
POWER = 666,168 W 1190.21 H 1234.68 H 12,833 W 134,262 W 5,903,548 W
2535.80 MWT 1125.80 H 398,118 W 445,146 W 550.51 P TD = 40 F 196.86 h 134.38 h
202,339 W 404,678 W 1155.54 H 1159.20 H 546.11 P 9,514 W 424,004 W 211,416 W 7,200 W 0 W 108,317 W
460.08 h 476.19 F 1086.45 H 1113.99 H 1063.36 H 179.00 h 179.00 h 1026.05 H
16,688 W 235,139 W 470,279 W 460.08 h 186.19 P
540.24 h 540.24 h 40,468 W 1197.34 H CF, % = 85.00
0 W 8,672,389 W 8,712,857 W 188.26 P 38,540 W GPM = 352,600
1086.45 H 1086.79 H 13.10%M 215,588 W 164.14 h 0 W 16,688 W CWT, F = 77.00 F
MSEFF = 100.00 % 31,597 W 1181.86 H 206.70 H 3.72 IN.HGA HWT, F = 109.49 F
1,135,587 W 1079.54 H 104,822 W
30,000 W 0 W 567,793 W 349.15 h
0 W 349.15 h 8,140 W 0 W
567,793 W 218,419 W 1181.86 H 0 W
575,512 W 0 W 1087.05 H
0 W 1086.45 H HW=122.81 F
202,339 W 0 W 8,344 W
460.08 h 287,756 W 567,793 W 206.70 h
10,964,514 W 349.15 h
424.91 F 235,139 W 107,794 W 16,688 W 11,007,994 W
403.02 h 333,084 W 540.24 h 1232.83 H 253,340 W 207,907 W 1086.45 H 5,340 W 219.01 P
344.68 P 3,986 W 181.31 P 97.98 P 60.10 P 1190.65 H 19.31 P 5.32 P 681.29 H 13,480 W 1181.86 H 6,216 W 123.14 F
TD = 5.36 F TD = 4.94 F TD = 4.81 F TD = 4.69 F TD = 4.82 F TD = 3.00 F 1190.21 H 91.65 h
5,482,257 W 5,482,257 W 569.84 P 5,478,271 W
424.92 F 370.11 F 1140.76 P 368.73 F 321.54 F 288.14 F 221.27 F 161.84 F 140.94 F 652.80 P 123.74 F
403.02 h 344.41 h 342.13 h 292.86 h 258.55 h 190.82 h 131.30 h 110.49 h 124.95 F 92.25 h
430.28 F 373.67 F 326.35 F 292.82 F 226.08 F 164.84 F 94.56 h
DC = 11.3 F DELTAH =2.46 DC = 10.3 F DC = 9.7 F DC = 8.9 F DC = 9.3 F DC = 6.9 F 6,216 W
179.01 P 5,340 W 130.00 h
0 W 124.33 F 179.00 h
92.74 h
1,062,802 W 2,218,492 W
770,563 W 331.81 F 297.80 F 171.15 F
381.42 F 302.82 h 267.51 h 139.16 h
355.28 h 235,139 W 207,907 W
0 W 202,339 W 540.24 h 0 W 0 W 0 W 0 W 164.84 F
460.08 h 132.80 h
0 W
0 W 0 W 0 W 7,971 W
DELTAH =1.83
0 W
0 W 0 W 218,419 W 0 W
202,339 W 287,756 W 1087.05 H
460.08 h 1086.45 H 179.01 P
235,139 W 567,793 W 107,794 W 253,340 W 8,344 W 124.33 F
540.24 h 349.15 h 1232.83 H 1190.65 H 206.70 h 92.74 h
333,084 W 207,907 W
344.68 P 3,986 W 181.31 P 97.98 P 60.10 P 19.31 P 5.32 P 681.29 H
TD = 5.36 F TD = 4.94 F TD = 4.81 F TD = 4.69 F TD = 4.82 F TD = 3.00 F
5,482,257 W 5,482,257 W 569.84 P 5,478,271 W
424.92 F 370.11 F 1140.76 P 368.73 F 321.54 F 288.14 F 221.27 F 161.84 F 652.80 P
403.02 h 344.41 h 342.13 h 292.86 h 258.55 h 190.82 h 131.30 h 110.49 h 124.95 F
430.28 F 373.67 F 326.35 F 292.82 F 226.08 F 164.84 F 94.56 h
DC = 11.3 F DELTAH =2.46 DC = 10.3 F DC = 9.7 F DC = 8.9 F DC = 9.3 F DC = 6.9 F
770,563 W 1,738,390 W 1,991,730 W 2,218,492 W
381.42 F 331.81 F 297.80 F 230.22 F 171.15 F
355.28 h 302.82 h 267.51 h 198.63 h 139.16 h 207,907 W
0 W 0 W 0 W 0 W 0 W 164.84 F
132.80 h
0 W
PIV = 181.65
4,864,355 W
99.84 h
4,483 W
1086.45 H
140.94 F
2,218,492 W
131.84 F
0 W
1,062,802 W
230.22 F
198.63 h
1,991,730 W1,738,390 W
4,483 W
207,907 W
131.84 F
99.84 h
2,218,492 W
207,907 W
2,218,492 W
30,000 W
2,218,492 W
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
D
REACTOR
A
T O SJAE
B
T O CRD
RHTR.1
RHTR.2
T O RFPT
A
RFP
TURBINE
TO RECOMBINER
TO REBOILER
VENT FLOW
VENT FLOW
TO CONDENSER
C
T O RBLR
FROM
REBOILER
T O HT RS
EH-2A,B
B
FROM RFPT
FROM
RECOMBINER
FROM
RADWAST E
FROM MAIN
STEAM
T O
RADWAST E
MS
DRAIN
TANK A
FROM
RFP
TO COND. A
FROM MSR
DRN.TANKS
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A DC 1A
T O COND.
ST OR.T K.
RFP
SEALS
EH-2A
TO RFP
SEALS
T O 1ST G &
2ST G RHT R.
DRN. T KS
TO MS
DRN.TKS.
T O
COND.A
T O COND. A
EMER. HTR. DRNS.
EH-6B EH-5B EH-4B EH-3B EH-1B DC 1B
RFP
SEALS
EH-2B
T O
COND. B
T O COND. B
T O
COND. A
C
FROM
RFP
T O
COND. A
FROM
RFP
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. A
T O
COND. A
T O
COND. A
T O
COND. A
MS
DRAIN
TANK B
T O
COND. A
FROM BOOST ER
PUMPS
A
BP
BP
D
RFP
B
T O
COND. A
T O
COND. A
FROM
RFP
FROM BOOST ER
PUMPS
FROM
REBOILER
1
MAIN STEAM BYPASS
Predicted Performance - 1% Main Steam Bypass

8.  Stage Shell Pressures Decrease By
Approximately Same Proportion
 Final feedwater Temperature
Decreases By About 1.0 F
 FW Flow, TTD’s, DCA’s Decrease
Slightly
 Generator Output Decreases by
About 11.1 Mwe (1.3%)
Impact of 1% Main Steam Bypass

9. Predicted Performance - 20% Moist. Sep. Drain
Tank “A” Drains Dump to Condenser
6,216 W 0 W
515,865 W
1190.21 H
10,482,174 W 0 W
1000.00 P 1190.21 H
0.42 %M
7,200 W 1190.21 H
8,941 W 7,672,753 W 108,357 W REACTOR CORE POWER = 2535.800 MWT
1274.78 H 1274.78 H RECIRC. PUMP POWER = 7.800 MWT
0 W CLEANUP LOSSES = 3.300 MWT
2,124 W FP POWER RADIATION LOSSES = 1.100 MWT
11,011,455 W EFF.=76.5 % 7933 KW NSSS THERMAL POWER = 2539.200 MWT
1055.00 P PB = 950.62 TOTAL SHAFT OUTPUT = 877077 KW
1190.21 H P1STG = 702.28 1024.99 H GEN. POWER FACTOR = 0.90
0.100% H1STG = 1169.44 3.78 IN.HGA GEN. H2 PRESSURE = 60.0 PSIG
DELP = 4.94 % 7,564,396 W MECHANICAL. LOSSES = 3783 KW
9,629 W 9,629 W 185.96 P PB = 177.85 GEN. LOSSES = 10628 KW
1086.96 H 1086.96 H 507.76 F HB = 1274.78 GENERATOR OUTPUT = 862665 KW
1274.78 H NET TURBINE HEAT RATE = 10043 BTU/KWHR
993.00 P 110.51 P 66.71 P 20.45 P 10.74 P 5.57 P GROSS TURBINE HEAT RATE =9952 BTU/KWHR
369.35 P 578.23 P 578.23 P 1190.21 H TD = 35 F 1232.54 H 1192.37 H 1112.00 H 1073.71 H 1043.07 H
1126.33 H 1156.07 H 1156.07 H 1113.74 H 1079.25 H 1063.13 H
358.27 P 560.89 P 560.89 P 191.96 P 985.06 P 107.20 P 64.71 P 19.84 P 5.40 P ELEP = 1004.65 H
CORE THERMAL 1086.96 H 46,897 W 542.76 F 187.23 P 504,970 W UEEP = 1009.85 H 3.70 IN.HGA
POWER = 670,343 W 1190.21 H 1235.05 H 12,986 W 136,607 W 5,964,296 W
2535.80 MWT 1126.33 H 406,955 W 453,852 W 556.96 P TD = 40 F 197.47 h 134.82 h
206,296 W 412,593 W 1156.07 H 1159.60 H 552.50 P 9,629 W 431,427 W 219,436 W 7,200 W 0 W 108,357 W
461.49 h 477.42 F 1086.96 H 1113.74 H 1063.13 H 179.00 h 179.00 h 1024.99 H
16,683 W 234,484 W 468,968 W 461.49 h 188.51 P
540.24 h 540.24 h 41,259 W 1197.52 H CF, % = 85.00
0 W 8,778,881 W 8,820,140 W 190.61 P 38,663 W GPM = 352,600
1086.96 H 1087.30 H 13.08%M 224,056 W 164.69 h 0 W 16,683 W CWT, F = 77.00 F
MSEFF = 100.00 % 31,955 W 1181.86 H 206.70 H 3.70 IN.HGA HWT, F = 109.30 F
1,147,388 W 1079.25 H
30,000 W 0 W 573,694 W 350.24 h
0 W 350.24 h 8,140 W 114,741 W
573,694 W 225,309 W 1181.86 H 0 W
578,988 W 0 W 1087.33 H
0 W 1086.96 H HW=122.54 F
206,296 W 114,741 W 8,341 W
461.49 h 289,686 W 458,953 W 206.70 h
10,981,455 W 350.24 h
426.02 F 234,484 W 116,316 W 16,683 W 11,024,935 W
404.24 h 335,172 W 540.24 h 1232.54 H 260,712 W 215,228 W 1086.96 H 5,340 W 218.92 P
348.87 P 3,986 W 183.57 P 99.12 P 60.79 P 1190.42 H 19.53 P 5.37 P 689.03 H 13,480 W 1181.86 H 6,216 W 122.86 F
TD = 5.39 F TD = 4.98 F TD = 4.90 F TD = 4.78 F TD = 4.91 F TD = 3.15 F 1190.21 H 91.38 h
5,490,727 W 5,490,727 W 569.11 P 5,486,742 W
426.03 F 371.11 F 1141.11 P 369.71 F 322.29 F 288.78 F 221.78 F 162.13 F 140.25 F 652.32 P 123.46 F
404.24 h 345.45 h 343.16 h 293.63 h 259.21 h 191.33 h 131.60 h 109.79 h 124.68 F 91.98 h
431.42 F 374.69 F 327.19 F 293.56 F 226.69 F 165.28 F 94.29 h
DC = 11.4 F DELTAH =2.47 DC = 10.4 F DC = 9.1 F DC = 8.2 F DC = 8.7 F DC = 6.5 F 6,216 W
178.92 P 5,340 W 130.00 h
0 W 124.05 F 179.00 h
92.46 h
1,070,108 W 2,139,740 W
775,952 W 332.70 F 297.88 F 170.88 F
382.55 F 303.75 h 267.60 h 138.89 h
356.50 h 234,484 W 215,228 W
0 W 206,296 W 540.24 h 0 W 0 W 0 W 0 W 165.28 F
461.49 h 133.25 h
0 W
0 W 0 W 0 W 7,971 W
DELTAH =1.83
0 W
0 W 0 W 219,104 W 0 W
206,296 W 289,302 W 1086.58 H
461.49 h 1086.96 H 178.92 P
234,484 W 573,694 W 107,740 W 253,887 W 8,341 W 124.05 F
540.24 h 350.24 h 1232.54 H 1190.37 H 206.70 h 92.46 h
335,172 W 211,433 W
348.87 P 3,986 W 183.57 P 99.12 P 60.79 P 19.53 P 5.37 P 682.31 H
TD = 5.39 F TD = 4.97 F TD = 4.83 F TD = 4.69 F TD = 4.82 F TD = 3.05 F
5,490,727 W 5,490,727 W 569.11 P 5,486,742 W
426.03 F 371.11 F 1141.11 P 369.72 F 322.36 F 288.87 F 221.86 F 162.23 F 652.32 P
404.24 h 345.45 h 343.17 h 293.70 h 259.30 h 191.42 h 131.69 h 110.53 h 124.68 F
431.42 F 374.69 F 327.19 F 293.56 F 226.69 F 165.28 F 94.29 h
DC = 11.4 F DELTAH =2.47 DC = 10.4 F DC = 9.8 F DC = 9.1 F DC = 9.4 F DC = 7.1 F
775,952 W 1,751,158 W 2,005,045 W 2,232,491 W
382.55 F 332.75 F 298.64 F 230.93 F 171.67 F
356.50 h 303.80 h 268.37 h 199.36 h 139.67 h 211,433 W
0 W 0 W 0 W 0 W 0 W 165.28 F
133.25 h
0 W
PIV = 183.91
4,810,447 W
99.13 h
4,470 W
1086.96 H
140.99 F
2,139,740 W
131.13 F
0 W
1,069,725 W
230.01 F
198.43 h
1,906,089 W1,645,377 W
4,470 W
211,433 W
131.76 F
99.75 h
2,139,740 W
215,228 W
2,232,491 W
30,000 W
2,232,491 W
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
D
REACTOR
A
T O SJAE
B
T O CRD
RHTR.1
RHTR.2
T O RFPT
A
RFP
TURBINE
TO RECOMBINER
TO REBOILER
VENT FLOW
VENT FLOW
TO CONDENSER
C
T O RBLR
FROM
REBOILER
T O HT RS
EH-2A,B
B
FROM RFPT
FROM
RECOMBINER
FROM
RADW AST E
FROM MAIN
STEAM
T O
RADW AST E
MS
DRAIN
TANK A
FROM
RFP
TO COND. A
FROM MSR
DRN.TANKS
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A DC 1A
T O COND.
ST OR.T K.
RFP
SEALS
EH-2A
TO RFP
SEALS
T O 1ST G &
2ST G RHT R.
DRN. T KS
TO MS
DRN.TKS.
T O
COND.A
T O COND. A
EMER. HTR. DRNS.
EH-6B EH-5B EH-4B EH-3B EH-1B DC 1B
RFP
SEALS
EH-2B
T O
COND. B
T O COND. B
T O
COND. A
C
FROM
RFP
T O
COND. A
FROM
RFP
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. A
T O
COND. A
T O
COND. A
T O
COND. A
MS
DRAIN
TANK B
T O
COND. A
FROM BOOST ER
PUMPS
A
BP
BP
D
RFP
B
T O
COND. A
T O
COND. A
FROM
RFP
FROM BOOST ER
PUMPS
FROM
REBOILER

10.  Less Drains Enter Heater 4A
 Extrn. Steam Flows, TTD’s for
Heaters Upstream in “A” String
Increase Slightly
 DCA’s for These Heaters Decrease
 Generator Output Decreases by
About 1.4 Mwe (0.16%)
Impact of 20% Moist. Sep. Drn. Tank
“A” Drains Dump to Condenser

11. Predicted Performance - 20% 1Stg Rhtr. Drain
Tank “A” Drains Dump to Condenser6,216 W 0 W
515,441 W
1190.21 H
10,481,579 W 0 W
1000.00 P 1190.21 H
0.42 %M
7,200 W 1190.21 H
8,942 W 7,666,922 W 108,343 W REACTOR CORE POWER = 2535.800 MWT
1274.80 H 1274.80 H RECIRC. PUMP POWER = 7.800 MWT
0 W CLEANUP LOSSES = 3.300 MWT
2,122 W FP POWER RADIATION LOSSES = 1.100 MWT
11,010,435 W EFF.=76.5 % 7931 KW NSSS THERMAL POWER = 2539.200 MWT
1055.00 P PB = 950.61 TOTAL SHAFT OUTPUT = 877538 KW
1190.21 H P1STG = 702.24 1025.02 H GEN. POWER FACTOR = 0.90
0.100% H1STG = 1169.43 3.78 IN.HGA GEN. H2 PRESSURE = 60.0 PSIG
DELP = 4.94 % 7,558,579 W MECHANICAL. LOSSES = 3783 KW
9,622 W 9,622 W 185.82 P PB = 177.71 GEN. LOSSES = 10637 KW
1086.91 H 1086.91 H 507.76 F HB = 1274.80 GENERATOR OUTPUT = 863119 KW
1274.80 H NET TURBINE HEAT RATE = 10038 BTU/KWHR
993.00 P 110.55 P 66.79 P 20.49 P 10.76 P 5.58 P GROSS TURBINE HEAT RATE =9947 BTU/KWHR
369.13 P 578.20 P 578.20 P 1190.21 H TD = 35 F 1232.65 H 1192.52 H 1112.17 H 1073.86 H 1043.20 H
1126.29 H 1156.06 H 1156.06 H 1113.90 H 1079.37 H 1063.25 H
358.06 P 560.85 P 560.85 P 191.81 P 985.06 P 107.24 P 64.78 P 19.87 P 5.42 P ELEP = 1004.63 H
CORE THERMAL 1086.91 H 46,858 W 542.76 F 187.09 P 500,210 W UEEP = 1009.85 H 3.70 IN.HGA
POWER = 675,038 W 1190.21 H 1235.07 H 12,937 W 136,690 W 5,976,703 W
2535.80 MWT 1126.29 H 406,979 W 453,837 W 556.92 P TD = 40 F 197.57 h 134.91 h
206,290 W 412,579 W 1156.06 H 1159.59 H 552.47 P 9,622 W 427,288 W 217,564 W 7,200 W 0 W 108,343 W
461.49 h 477.41 F 1086.91 H 1113.90 H 1063.25 H 179.00 h 179.00 h 1025.02 H
16,684 W 234,291 W 468,583 W 461.49 h 188.37 P
540.24 h 540.24 h 41,258 W 1197.50 H CF, % = 85.00
0 W 8,772,481 W 8,813,739 W 190.47 P 38,576 W GPM = 352,600
1086.91 H 1087.25 H 13.08%M 216,603 W 164.77 h 0 W 16,684 W CWT, F = 77.00 F
MSEFF = 100.00 % 32,008 W 1181.86 H 206.70 H 3.70 IN.HGA HWT, F = 109.29 F
1,146,818 W 1079.37 H
30,000 W 41,258 W 573,409 W 350.18 h
0 W 350.18 h 8,140 W 41,258 W
573,409 W 221,073 W 1181.86 H 0 W
580,087 W 0 W 1087.09 H
0 W 1086.91 H HW=122.53 F
165,032 W 0 W 8,342 W
461.49 h 291,337 W 573,409 W 206.70 h
10,980,435 W 350.18 h
425.95 F 234,291 W 108,962 W 16,684 W 11,023,915 W
404.16 h 339,879 W 540.24 h 1232.65 H 255,964 W 213,005 W 1086.91 H 5,340 W 218.93 P
348.67 P 3,986 W 183.43 P 99.16 P 60.86 P 1190.54 H 19.56 P 5.38 P 685.23 H 13,480 W 1181.86 H 6,216 W 122.85 F
TD = 5.41 F TD = 4.98 F TD = 4.84 F TD = 4.72 F TD = 4.85 F TD = 3.09 F 1190.21 H 91.37 h
5,490,218 W 5,490,218 W 569.15 P 5,486,232 W
425.96 F 371.04 F 1141.09 P 369.64 F 322.37 F 288.92 F 221.93 F 162.29 F 140.78 F 652.35 P 123.45 F
404.15 h 345.39 h 343.09 h 293.71 h 259.35 h 191.49 h 131.75 h 110.32 h 124.66 F 91.96 h
431.37 F 374.63 F 327.21 F 293.64 F 226.78 F 165.37 F 94.28 h
DC = 10.7 F DELTAH =2.47 DC = 10.0 F DC = 9.5 F DC = 8.8 F DC = 9.2 F DC = 6.9 F 6,216 W
178.93 P 5,340 W 130.00 h
0 W 124.04 F 179.00 h
92.45 h
1,035,010 W 2,202,759 W
739,202 W 332.34 F 298.47 F 171.50 F
381.78 F 303.38 h 268.20 h 139.51 h
355.67 h 234,291 W 213,005 W
0 W 206,290 W 540.24 h 0 W 0 W 0 W 0 W 165.37 F
461.49 h 133.34 h
0 W
0 W 0 W 0 W 7,971 W
DELTAH =1.83
0 W
0 W 0 W 219,152 W 0 W
206,290 W 288,750 W 1086.86 H
461.49 h 1086.91 H 178.93 P
234,291 W 573,409 W 107,641 W 253,868 W 8,342 W 124.04 F
540.24 h 350.18 h 1232.65 H 1190.52 H 206.70 h 92.45 h
335,160 W 211,833 W
348.67 P 3,986 W 183.43 P 99.16 P 60.86 P 19.56 P 5.38 P 683.14 H
TD = 5.39 F TD = 4.96 F TD = 4.82 F TD = 4.69 F TD = 4.82 F TD = 3.06 F
5,490,218 W 5,490,218 W 569.15 P 5,486,232 W
425.98 F 371.04 F 1141.09 P 369.66 F 322.39 F 288.95 F 221.96 F 162.32 F 652.35 P
404.18 h 345.39 h 343.11 h 293.73 h 259.38 h 191.51 h 131.78 h 110.55 h 124.66 F
431.37 F 374.63 F 327.21 F 293.64 F 226.78 F 165.37 F 94.28 h
DC = 11.4 F DELTAH =2.47 DC = 10.4 F DC = 9.7 F DC = 9.1 F DC = 9.4 F DC = 7.1 F
775,740 W 1,750,012 W 2,003,880 W 2,231,374 W
382.49 F 332.75 F 298.70 F 231.02 F 171.74 F
356.43 h 303.81 h 268.43 h 199.44 h 139.75 h 211,833 W
0 W 0 W 0 W 0 W 0 W 165.37 F
133.34 h
0 W
PIV = 183.78
4,870,527 W
99.55 h
4,471 W
1086.91 H
141.00 F
2,202,759 W
131.56 F
0 W
1,068,962 W
230.73 F
199.16 h
1,973,344 W1,717,380 W
4,471 W
211,833 W
131.75 F
99.75 h
2,202,759 W
213,005 W
2,231,374 W
30,000 W
2,231,374 W
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
D
REACTOR
A
T O SJAE
B
T O CRD
RHTR.1
RHTR.2
T O RFPT
A
RFP
TURBINE
TO RECOMBINER
TO REBOILER
VENT FLOW
VENT FLOW
TO CONDENSER
C
T O RBLR
FROM
REBOILER
T O HT RS
EH-2A,B
B
FROM RFPT
FROM
RECOMBINER
FROM
RADWAST E
FROM MAIN
STEAM
T O
RADWAST E
MS
DRAIN
TANK A
FROM
RFP
TO COND. A
FROM MSR
DRN.TANKS
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A DC 1A
T O COND.
ST OR.T K.
RFP
SEALS
EH-2A
TO RFP
SEALS
T O 1ST G &
2ST G RHT R.
DRN. T KS
TO MS
DRN.TKS.
T O
COND.A
T O COND. A
EMER. HTR. DRNS.
EH-6B EH-5B EH-4B EH-3B EH-1B DC 1B
RFP
SEALS
EH-2B
T O
COND. B
T O COND. B
T O
COND. A
C
FROM
RFP
T O
COND. A
FROM
RFP
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. A
T O
COND. A
T O
COND. A
T O
COND. A
MS
DRAIN
TANK B
T O
COND. A
FROM BOOST ER
PUMPS
A
BP
BP
D
RFP
B
T O
COND. A
T O
COND. A
FROM
RFP
FROM BOOST ER
PUMPS
FROM
REBOILER

12.  Less Drains Enter Heater 6A
 Extrn. Steam Flows, TTD’s for
Heaters Upstream in “A” String
Increase Slightly
 DCA’s for These Heaters Decrease
 Generator Output Decreases by
About 1.0 Mwe (0.1%)
Impact of 20% 1Stg. Rhtr. Drn. Tank “A”
Drains Dump to Condenser

13. Predicted Performance - 20% 2Stg Rhtr. Drain
Tank “A” Drains Dump to Condenser
6,216 W 0 W
515,056 W
1190.21 H
10,481,041 W 0 W
1000.00 P 1190.21 H
0.42 %M
7,200 W 1190.21 H
8,944 W 7,661,627 W 108,340 W REACTOR CORE POWER = 2535.800 MWT
1274.81 H 1274.81 H RECIRC. PUMP POWER = 7.800 MWT
0 W CLEANUP LOSSES = 3.300 MWT
2,121 W FP POWER RADIATION LOSSES = 1.100 MWT
11,009,512 W EFF.=76.5 % 7929 KW NSSS THERMAL POWER = 2539.200 MWT
1055.00 P PB = 950.60 TOTAL SHAFT OUTPUT = 877075 KW
1190.21 H P1STG = 702.20 1025.08 H GEN. POWER FACTOR = 0.90
0.100% H1STG = 1169.43 3.78 IN.HGA GEN. H2 PRESSURE = 60.0 PSIG
DELP = 4.94 % 7,553,287 W MECHANICAL. LOSSES = 3783 KW
9,616 W 9,616 W 185.69 P PB = 177.59 GEN. LOSSES = 10628 KW
1086.87 H 1086.87 H 507.76 F HB = 1274.81 GENERATOR OUTPUT = 862663 KW
1274.81 H NET TURBINE HEAT RATE = 10043 BTU/KWHR
993.00 P 110.48 P 66.74 P 20.47 P 10.75 P 5.58 P GROSS TURBINE HEAT RATE =9952 BTU/KWHR
368.89 P 578.16 P 578.16 P 1190.21 H TD = 35 F 1232.66 H 1192.53 H 1112.17 H 1073.87 H 1043.21 H
1126.25 H 1156.06 H 1156.06 H 1113.90 H 1079.38 H 1063.25 H
357.82 P 560.82 P 560.82 P 191.68 P 985.06 P 107.16 P 64.73 P 19.86 P 5.41 P ELEP = 1004.69 H
CORE THERMAL 1086.87 H 46,823 W 542.76 F 186.96 P 500,145 W UEEP = 1009.90 H 3.70 IN.HGA
POWER = 680,401 W 1190.21 H 1235.09 H 12,931 W 136,543 W 5,972,022 W
2535.80 MWT 1126.25 H 407,001 W 453,824 W 556.89 P TD = 40 F 197.53 h 134.88 h
206,284 W 412,568 W 1156.06 H 1159.59 H 552.44 P 9,616 W 427,198 W 217,274 W 7,200 W 0 W 108,340 W
461.48 h 477.41 F 1086.87 H 1113.90 H 1063.25 H 179.00 h 179.00 h 1025.08 H
16,684 W 234,116 W 468,232 W 461.48 h 188.24 P
540.24 h 540.24 h 41,257 W 1197.49 H CF, % = 85.00
0 W 8,766,670 W 8,807,927 W 190.34 P 38,575 W GPM = 352,600
1086.87 H 1087.21 H 13.09%M 216,617 W 164.73 h 0 W 16,684 W CWT, F = 77.00 F
MSEFF = 100.00 % 31,982 W 1181.86 H 206.70 H 3.70 IN.HGA HWT, F = 109.30 F
1,146,300 W 1079.38 H
30,000 W 0 W 573,150 W 350.12 h
0 W 350.12 h 8,140 W 46,823 W
573,150 W 221,025 W 1181.86 H 0 W
579,987 W 0 W 1087.10 H
46,823 W 1086.87 H HW=122.54 F
206,284 W 0 W 8,342 W
461.48 h 291,287 W 573,150 W 206.70 h
10,979,512 W 350.12 h
425.89 F 187,293 W 108,969 W 16,684 W 11,022,992 W
404.10 h 345,337 W 540.24 h 1232.66 H 255,929 W 212,772 W 1086.87 H 5,340 W 218.93 P
348.44 P 3,986 W 183.31 P 99.09 P 60.81 P 1190.54 H 19.54 P 5.38 P 685.13 H 13,480 W 1181.86 H 6,216 W 122.86 F
TD = 5.41 F TD = 4.98 F TD = 4.84 F TD = 4.72 F TD = 4.85 F TD = 3.09 F 1190.21 H 91.38 h
5,489,756 W 5,489,756 W 569.19 P 5,485,771 W
425.89 F 370.99 F 1141.07 P 369.59 F 322.32 F 288.87 F 221.89 F 162.25 F 140.77 F 652.37 P 123.46 F
404.08 h 345.33 h 343.03 h 293.66 h 259.30 h 191.44 h 131.72 h 110.31 h 124.68 F 91.98 h
431.30 F 374.57 F 327.16 F 293.59 F 226.74 F 165.34 F 94.29 h
DC = 10.7 F DELTAH =2.47 DC = 10.0 F DC = 9.5 F DC = 8.8 F DC = 9.2 F DC = 6.9 F 6,216 W
178.93 P 5,340 W 130.00 h
0 W 124.05 F 179.00 h
92.46 h
1,034,673 W 2,202,088 W
738,914 W 332.28 F 298.41 F 171.46 F
381.71 F 303.32 h 268.14 h 139.47 h
355.60 h 234,116 W 212,772 W
0 W 206,284 W 540.24 h 0 W 0 W 0 W 0 W 165.34 F
461.48 h 133.31 h
0 W
0 W 0 W 0 W 7,971 W
DELTAH =1.83
0 W
0 W 0 W 219,104 W 0 W
206,284 W 288,700 W 1086.86 H
461.48 h 1086.87 H 178.93 P
234,116 W 573,150 W 107,648 W 253,832 W 8,342 W 124.05 F
540.24 h 350.12 h 1232.66 H 1190.53 H 206.70 h 92.46 h
335,065 W 211,601 W
348.44 P 3,986 W 183.31 P 99.09 P 60.81 P 19.54 P 5.38 P 683.04 H
TD = 5.38 F TD = 4.96 F TD = 4.82 F TD = 4.69 F TD = 4.82 F TD = 3.06 F
5,489,756 W 5,489,756 W 569.19 P 5,485,771 W
425.92 F 370.99 F 1141.07 P 369.61 F 322.34 F 288.90 F 221.92 F 162.28 F 652.37 P
404.11 h 345.33 h 343.06 h 293.68 h 259.33 h 191.47 h 131.75 h 110.54 h 124.68 F
431.30 F 374.57 F 327.16 F 293.59 F 226.74 F 165.34 F 94.29 h
DC = 11.4 F DELTAH =2.47 DC = 10.4 F DC = 9.7 F DC = 9.1 F DC = 9.4 F DC = 7.1 F
775,465 W 1,749,435 W 2,003,267 W 2,230,713 W
382.42 F 332.70 F 298.64 F 230.97 F 171.71 F
356.36 h 303.75 h 268.38 h 199.39 h 139.72 h 211,601 W
0 W 0 W 0 W 0 W 0 W 165.34 F
133.31 h
0 W
PIV = 183.65
4,868,730 W
99.56 h
4,472 W
1086.87 H
141.00 F
2,202,088 W
131.56 F
0 W
1,068,636 W
230.68 F
199.11 h
1,972,720 W1,716,791 W
4,472 W
211,601 W
131.75 F
99.75 h
2,202,088 W
212,772 W
2,230,713 W
30,000 W
2,230,713 W
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
D
REACTOR
A
T O SJAE
B
T O CRD
RHTR.1
RHTR.2
T O RFPT
A
RFP
TURBINE
TO RECOMBINER
TO REBOILER
VENT FLOW
VENT FLOW
TO CONDENSER
C
T O RBLR
FROM
REBOILER
T O HT RS
EH-2A,B
B
FROM RFPT
FROM
RECOMBINER
FROM
RADW AST E
FROM MAIN
STEAM
T O
RADW AST E
MS
DRAIN
TANK A
FROM
RFP
TO COND. A
FROM MSR
DRN.TANKS
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A DC 1A
T O COND.
ST OR.T K.
RFP
SEALS
EH-2A
TO RFP
SEALS
T O 1ST G &
2ST G RHT R.
DRN. T KS
TO MS
DRN.TKS.
T O
COND.A
T O COND. A
EMER. HTR. DRNS.
EH-6B EH-5B EH-4B EH-3B EH-1B DC 1B
RFP
SEALS
EH-2B
T O
COND. B
T O COND. B
T O
COND. A
C
FROM
RFP
T O
COND. A
FROM
RFP
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. A
T O
COND. A
T O
COND. A
T O
COND. A
MS
DRAIN
TANK B
T O
COND. A
FROM BOOST ER
PUMPS
A
BP
BP
D
RFP
B
T O
COND. A
T O
COND. A
FROM
RFP
FROM BOOST ER
PUMPS
FROM
REBOILER

14.  Less Drains Enter Heater 6A
 Extrn. Steam Flows, TTD’s for
Heaters Upstream in “A” String
Increase Slightly
 DCA’s for These Heaters Decrease
 Generator Output Decreases by
About 1.4 Mwe (0.16%)
Impact of 20% 2Stg. Rhtr. Drn. Tank
“A” Drains Dump to Condenser

15. Predicted Performance - 10% Leak in Heater 6A
Emergency Drain Valve to Condenser
6,216 W 0 W
515,616 W
1190.21 H
10,482,293 W 0 W
1000.00 P 1190.21 H
0.42 %M
7,200 W 1190.21 H
8,942 W 7,669,763 W 108,356 W REACTOR CORE POWER = 2535.800 MWT
1274.79 H 1274.79 H RECIRC. PUMP POWER = 7.800 MWT
0 W CLEANUP LOSSES = 3.300 MWT
2,123 W FP POWER RADIATION LOSSES = 1.100 MWT
11,011,325 W EFF.=76.5 % 7932 KW NSSS THERMAL POWER = 2539.200 MWT
1055.00 P PB = 950.62 TOTAL SHAFT OUTPUT = 877466 KW
1190.21 H P1STG = 702.29 1025.00 H GEN. POWER FACTOR = 0.90
0.100% H1STG = 1169.44 3.78 IN.HGA GEN. H2 PRESSURE = 60.0 PSIG
DELP = 4.94 % 7,561,407 W MECHANICAL. LOSSES = 3783 KW
9,626 W 9,626 W 185.89 P PB = 177.78 GEN. LOSSES = 10635 KW
1086.93 H 1086.93 H 507.76 F HB = 1274.79 GENERATOR OUTPUT = 863048 KW
1274.79 H NET TURBINE HEAT RATE = 10039 BTU/KWHR
993.00 P 110.57 P 66.77 P 20.48 P 10.76 P 5.58 P GROSS TURBINE HEAT RATE =9948 BTU/KWHR
369.33 P 578.24 P 578.24 P 1190.21 H TD = 35 F 1232.62 H 1192.47 H 1112.10 H 1073.80 H 1043.15 H
1126.32 H 1156.07 H 1156.07 H 1113.84 H 1079.32 H 1063.20 H
358.25 P 560.89 P 560.89 P 191.88 P 985.06 P 107.25 P 64.76 P 19.86 P 5.41 P ELEP = 1004.63 H
CORE THERMAL 1086.93 H 46,874 W 542.76 F 187.16 P 502,723 W UEEP = 1009.84 H 3.70 IN.HGA
POWER = 670,893 W 1190.21 H 1235.07 H 12,958 W 136,678 W 5,972,023 W
2535.80 MWT 1126.32 H 407,003 W 453,877 W 556.96 P TD = 40 F 197.54 h 134.88 h
206,308 W 412,615 W 1156.07 H 1159.59 H 552.51 P 9,626 W 429,483 W 218,655 W 7,200 W 0 W 108,356 W
461.49 h 477.42 F 1086.93 H 1113.84 H 1063.20 H 179.00 h 179.00 h 1025.00 H
16,683 W 234,371 W 468,742 W 461.49 h 188.44 P
540.24 h 540.24 h 41,262 W 1197.51 H CF, % = 85.00
0 W 8,775,607 W 8,816,868 W 190.54 P 38,611 W GPM = 352,600
1086.93 H 1087.27 H 13.08%M 218,286 W 164.74 h 0 W 16,683 W CWT, F = 77.00 F
MSEFF = 100.00 % 31,990 W 1181.86 H 206.70 H 3.70 IN.HGA HWT, F = 109.29 F
1,147,105 W 1079.32 H
30,000 W 0 W 573,552 W 350.21 h
0 W 350.21 h 8,140 W 0 W
573,552 W 223,300 W 1181.86 H 0 W
581,792 W 0 W 1087.25 H
0 W 1086.93 H HW=122.53 F
206,308 W 0 W 8,342 W
461.49 h 292,888 W 573,552 W 206.70 h
10,981,325 W 350.21 h
426.01 F 234,371 W 110,567 W 16,683 W 11,024,805 W
404.23 h 335,446 W 540.24 h 1232.62 H 258,453 W 214,237 W 1086.93 H 5,340 W 218.92 P
348.85 P 3,986 W 183.50 P 99.17 P 60.84 P 1190.50 H 19.55 P 5.38 P 687.32 H 13,480 W 1181.86 H 6,216 W 122.85 F
TD = 5.39 F TD = 5.02 F TD = 4.87 F TD = 4.75 F TD = 4.88 F TD = 3.12 F 1190.21 H 91.37 h
5,490,663 W 5,490,663 W 569.11 P 5,486,677 W
426.03 F 371.06 F 1141.10 P 369.64 F 322.35 F 288.87 F 221.87 F 162.22 F 140.50 F 652.32 P 123.45 F
404.23 h 345.40 h 343.09 h 293.69 h 259.30 h 191.42 h 131.68 h 110.05 h 124.67 F 91.97 h
431.42 F 374.66 F 327.22 F 293.62 F 226.75 F 165.34 F 94.28 h
DC = 11.5 F DELTAH =2.47 DC = 9.5 F DC = 9.3 F DC = 8.5 F DC = 9.0 F DC = 6.7 F 6,216 W
178.92 P 5,340 W 130.00 h
0 W 124.04 F 179.00 h
92.45 h
995,871 W 2,170,086 W
698,512 W 331.87 F 298.19 F 171.19 F
382.52 F 302.89 h 267.91 h 139.20 h
356.46 h 234,371 W 214,237 W
77,612 W 206,308 W 540.24 h 0 W 0 W 0 W 0 W 165.34 F
382.52 F 461.49 h 133.30 h
356.46 h
0 W
0 W 0 W 0 W 7,971 W
DELTAH =1.83
0 W
0 W 0 W 219,141 W 0 W
206,308 W 288,904 W 1086.75 H
461.49 h 1086.93 H 178.92 P
234,371 W 573,552 W 107,719 W 253,896 W 8,342 W 124.04 F
540.24 h 350.21 h 1232.62 H 1190.47 H 206.70 h 92.45 h
335,446 W 211,696 W
348.85 P 3,986 W 183.50 P 99.17 P 60.84 P 19.55 P 5.38 P 682.81 H
TD = 5.39 F TD = 4.96 F TD = 4.83 F TD = 4.69 F TD = 4.82 F TD = 3.06 F
5,490,663 W 5,490,663 W 569.11 P 5,486,677 W
426.03 F 371.06 F 1141.10 P 369.69 F 322.40 F 288.93 F 221.93 F 162.28 F 652.32 P
404.23 h 345.40 h 343.14 h 293.74 h 259.36 h 191.48 h 131.74 h 110.54 h 124.67 F
431.42 F 374.66 F 327.22 F 293.62 F 226.75 F 165.34 F 94.28 h
DC = 11.5 F DELTAH =2.47 DC = 10.4 F DC = 9.8 F DC = 9.1 F DC = 9.4 F DC = 7.1 F
776,125 W 1,750,772 W 2,004,667 W 2,232,150 W
382.52 F 332.77 F 298.69 F 230.99 F 171.72 F
356.46 h 303.82 h 268.42 h 199.42 h 139.73 h 211,696 W
0 W 0 W 0 W 0 W 0 W 165.34 F
133.30 h
0 W
PIV = 183.84
4,839,725 W
99.33 h
4,471 W
1086.93 H
141.00 F
2,170,086 W
131.33 F
77,612 W
1,069,500 W
230.38 F
198.80 h
1,938,443 W1,679,990 W
4,471 W
211,696 W
131.75 F
99.75 h
2,170,086 W
214,237 W
2,232,150 W
30,000 W
2,232,150 W
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
D
REACTOR
A
T O SJAE
B
T O CRD
RHTR.1
RHTR.2
T O RFPT
A
RFP
TURBINE
TO RECOMBINER
TO REBOILER
VENT FLOW
VENT FLOW
TO CONDENSER
C
T O RBLR
FROM
REBOILER
T O HT RS
EH-2A,B
B
FROM RFPT
FROM
RECOMBINER
FROM
RADW AST E
FROM MAIN
STEAM
T O
RADW AST E
MS
DRAIN
TANK A
FROM
RFP
TO COND. A
FROM MSR
DRN.TANKS
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A DC 1A
T O COND.
ST OR.T K.
RFP
SEALS
EH-2A
TO RFP
SEALS
T O 1ST G &
2ST G RHT R.
DRN. T KS
TO MS
DRN.TKS.
T O
COND.A
T O COND. A
EMER. HTR. DRNS.
EH-6B EH-5B EH-4B EH-3B EH-1B DC 1B
RFP
SEALS
EH-2B
T O
COND. B
T O COND. B
T O
COND. A
C
FROM
RFP
T O
COND. A
FROM
RFP
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. A
T O
COND. A
T O
COND. A
T O
COND. A
MS
DRAIN
TANK B
T O
COND. A
FROM BOOST ER
PUMPS
A
BP
BP
D
RFP
B
T O
COND. A
T O
COND. A
FROM
RFP
FROM BOOST ER
PUMPS
FROM
REBOILER

16.  Extrn. Steam Flows, TTD’s for
Heaters Upstream in “A” String
Increase
 DCA’s for These Heaters Decrease
 Capacity Loss is About 1 Mwe
(0.11%)
Impact of 10% Leak in Htr. 6A
Emergency Drain Valve to Condenser

17. Capacity Loss - 10% Leak in Emergency
Heater Drain Valves to Condenser
Description Generator
Output, Kw
Capacity
Loss, Kw
Capacity
Loss, %
Base Case 864,022 Base Base
Htr. 6A 863,048 974 0.11
Htr. 5A 863,104 918 0.11
Htr. 4A 862,923 1,099 0.13
Htr. 3A 863,524 498 0.06
Htr. 2A 863,914 108 0.01

18.  Extrn. Steam Flows, TTD’s for
Heaters Upstream in “A” String
Increase
 DCA’s for These Heaters Decrease
 Capacity Losses Greatest for Leaks
in Heaters 4A, 6A (About 1 Mwe)
Impact of 10% Leak in Emergency
Heater Drain Valves to Condenser

19. Predicted Performance - 1% Reduction in FW Flow
6,216 W 0 W
518,212 W
1190.21 H
10,370,095 W 0 W
1000.00 P 1190.21 H
0.42 %M
7,200 W 1190.21 H
8,961 W 7,598,299 W 106,174 W REACTOR CORE POWER = 2513.413 MWT
1274.96 H 1274.96 H RECIRC. PUMP POWER = 7.800 MWT
0 W CLEANUP LOSSES = 3.300 MWT
2,104 W FP POWER RADIATION LOSSES = 1.100 MWT
10,901,723 W EFF.=76.2 % 7744 KW NSSS THERMAL POWER = 2516.813 MWT
1055.00 P PB = 949.24 TOTAL SHAFT OUTPUT = 871135 KW
1190.21 H P1STG = 694.77 1026.10 H GEN. POWER FACTOR = 0.90
0.100% H1STG = 1168.93 3.74 IN.HGA GEN. H2 PRESSURE = 60.0 PSIG
DELP = 5.08 % 7,492,125 W MECHANICAL. LOSSES = 3783 KW
9,542 W 9,542 W 184.22 P PB = 176.18 GEN. LOSSES = 10525 KW
1086.61 H 1086.61 H 507.76 F HB = 1274.96 GENERATOR OUTPUT = 856827 KW
1274.96 H NET TURBINE HEAT RATE = 10023 BTU/KWHR
993.00 P 109.65 P 66.28 P 20.34 P 10.68 P 5.54 P GROSS TURBINE HEAT RATE =9933 BTU/KWHR
365.63 P 572.16 P 572.16 P 1190.21 H TD = 35 F 1232.85 H 1192.76 H 1112.40 H 1074.08 H 1043.45 H
1125.90 H 1155.59 H 1155.59 H 1114.14 H 1079.62 H 1063.41 H
354.66 P 555.00 P 555.00 P 190.16 P 985.06 P 106.36 P 64.29 P 19.73 P 5.38 P ELEP = 1004.58 H
CORE THERMAL 1086.61 H 47,110 W 542.76 F 185.48 P 492,138 W UEEP = 1009.82 H 3.65 IN.HGA
POWER = 658,989 W 1190.21 H 1234.66 H 12,813 W 135,091 W 5,933,466 W
2513.41 MWT 1125.90 H 398,621 W 445,731 W 551.11 P TD = 40 F 197.17 h 134.60 h
202,605 W 405,210 W 1155.59 H 1159.25 H 546.70 P 9,542 W 420,789 W 215,314 W 7,200 W 0 W 106,174 W
460.21 h 476.31 F 1086.61 H 1114.14 H 1063.41 H 179.00 h 179.00 h 1026.10 H
16,696 W 235,551 W 471,101 W 460.21 h 186.75 P
540.24 h 540.24 h 40,521 W 1197.38 H CF, % = 85.00
0 W 8,695,509 W 8,736,030 W 188.83 P 38,461 W GPM = 352,600
1086.61 H 1086.95 H 13.09%M 212,283 W 164.41 h 0 W 16,696 W CWT, F = 77.00 F
MSEFF = 100.00 % 31,771 W 1181.86 H 206.70 H 3.65 IN.HGA HWT, F = 108.98 F
1,137,731 W 1079.62 H
30,000 W 0 W 568,865 W 349.41 h
0 W 349.41 h 8,140 W 0 W
568,865 W 216,801 W 1181.86 H 0 W
570,132 W 0 W 1087.04 H
0 W 1086.61 H HW=122.09 F
202,605 W 0 W 8,348 W
460.21 h 285,066 W 568,865 W 206.70 h
10,871,723 W 349.41 h
425.19 F 235,551 W 106,141 W 16,696 W 10,915,203 W
403.33 h 329,494 W 540.24 h 1232.85 H 250,840 W 210,318 W 1086.61 H 5,340 W 219.48 P
345.36 P 3,986 W 181.86 P 98.34 P 60.39 P 1190.74 H 19.42 P 5.34 P 684.14 H 13,480 W 1181.86 H 6,216 W 122.42 F
TD = 5.26 F TD = 4.86 F TD = 4.73 F TD = 4.60 F TD = 4.74 F TD = 3.03 F 1190.21 H 90.93 h
5,435,862 W 5,435,862 W 573.83 P 5,431,876 W
425.21 F 370.43 F 1138.83 P 369.06 F 321.89 F 288.54 F 221.64 F 162.03 F 140.61 F 655.39 P 123.02 F
403.33 h 344.73 h 342.48 h 293.22 h 258.97 h 191.20 h 131.50 h 110.17 h 124.24 F 91.54 h
430.46 F 373.92 F 326.62 F 293.14 F 226.39 F 165.06 F 93.86 h
DC = 11.2 F DELTAH =2.43 DC = 10.2 F DC = 9.6 F DC = 8.9 F DC = 9.3 F DC = 7.0 F 6,216 W
179.48 P 5,340 W 130.00 h
0 W 123.61 F 179.00 h
92.03 h
1,057,197 W 2,208,193 W
767,650 W 332.09 F 298.16 F 171.35 F
381.67 F 303.12 h 267.88 h 139.36 h
355.55 h 235,551 W 210,318 W
0 W 202,605 W 540.24 h 0 W 0 W 0 W 0 W 165.06 F
460.21 h 133.03 h
0 W
0 W 0 W 0 W 7,971 W
DELTAH =1.84
0 W
0 W 0 W 216,801 W 0 W
202,605 W 285,066 W 1087.04 H
460.21 h 1086.61 H 179.48 P
235,551 W 568,865 W 106,141 W 250,840 W 8,348 W 123.61 F
540.24 h 349.41 h 1232.85 H 1190.74 H 206.70 h 92.03 h
329,494 W 210,318 W
345.36 P 3,986 W 181.86 P 98.34 P 60.39 P 19.42 P 5.34 P 684.14 H
TD = 5.26 F TD = 4.86 F TD = 4.73 F TD = 4.60 F TD = 4.74 F TD = 3.03 F
5,435,862 W 5,435,862 W 573.83 P 5,431,876 W
425.21 F 370.43 F 1138.83 P 369.06 F 321.89 F 288.54 F 221.64 F 162.03 F 655.39 P
403.33 h 344.73 h 342.48 h 293.22 h 258.97 h 191.20 h 131.50 h 110.17 h 124.24 F
430.46 F 373.92 F 326.62 F 293.14 F 226.39 F 165.06 F 93.86 h
DC = 11.2 F DELTAH =2.43 DC = 10.2 F DC = 9.6 F DC = 8.9 F DC = 9.3 F DC = 7.0 F
767,650 W 1,732,203 W 1,983,043 W 2,208,193 W
381.67 F 332.09 F 298.16 F 230.57 F 171.35 F
355.55 h 303.12 h 267.88 h 198.99 h 139.36 h 210,318 W
0 W 0 W 0 W 0 W 0 W 165.06 F
133.03 h
0 W
PIV = 182.20
4,848,577 W
99.26 h
4,480 W
1086.61 H
140.61 F
2,208,193 W
131.26 F
0 W
1,057,197 W
230.57 F
198.99 h
1,983,043 W1,732,203 W
4,480 W
210,318 W
131.26 F
99.26 h
2,208,193 W
210,318 W
2,208,193 W
30,000 W
2,208,193 W
1STG
RHTR
DRN. TK. A
REBOILER
CONDENSER
TWO DOUBLE-FLOW LP TURBINES
CP
MOIST.SEP.
DOUBLE-FLOW HP TURBINE
D
REACTOR
A
T O SJAE
B
T O CRD
RHTR.1
RHTR.2
T O RFPT
A
RFP
TURBINE
TO RECOMBINER
TO REBOILER
VENT FLOW
VENT FLOW
TO CONDENSER
C
T O RBLR
FROM
REBOILER
T O HT RS
EH-2A,B
B
FROM RFPT
FROM
RECOMBINER
FROM
RADWAST E
FROM MAIN
STEAM
T O
RADWAST E
MS
DRAIN
TANK A
FROM
RFP
TO COND. A
FROM MSR
DRN.TANKS
MAKEUP
RFP
A
GSC SJAE
BP
EH-6A EH-5A EH-4A EH-3A EH-1A DC 1A
T O COND.
ST OR.T K.
RFP
SEALS
EH-2A
TO RFP
SEALS
T O 1ST G &
2ST G RHT R.
DRN. T KS
TO MS
DRN.TKS.
T O
COND.A
T O COND. A
EMER. HTR. DRNS.
EH-6B EH-5B EH-4B EH-3B EH-1B DC 1B
RFP
SEALS
EH-2B
T O
COND. B
T O COND. B
T O
COND. A
C
FROM
RFP
T O
COND. A
FROM
RFP
2STG
RHTR
DRN. TK.
A
2STG
RHTR
DRN. TK.
B
1STG
RHTR
DRN. TK.
B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. B
T O
COND. A
T O
COND. A
T O
COND. A
T O
COND. A
MS
DRAIN
TANK B
T O
COND. A
FROM BOOST ER
PUMPS
A
BP
BP
D
RFP
B
T O
COND. A
T O
COND. A
FROM
RFP
FROM BOOST ER
PUMPS
FROM
REBOILER

20.  Final FW Temp. Decreases by About
0.8 F
 HP, LP Turbine Bowl, Stage & Extrn.
Steam Pressures Decrease By About
1%
 TTD’s, DCA’s in Both Strings Decrease
By About Same Amount (0.1 to 0.2 F)
 Capacity Loss is About 7 Mwe (0.8%)
Impact of 1% Reduction in FW Flow

21. Detailed Model Permits Predicting
Changes in Capacity & Impact
Upon Various Parameters
Facilitates Conducting Diagnostics
& Confirming As Well As Validating
Predicted Changes
Conclusions & Recommendations