2. LOGARITHMIC MEAN TEMPERATURE
DIFFERENCE(LMTD)
• Defination:Logarithmic mean temperature
difference is define as that temperature
difference which,if constant,would give the
same rate of heat transfer as actually occur
under variable condition of temperature
difference.
• With help of LMTD ,the value of temperature
at any length of heat exchanger or vice versa
is easily available.