EED Software Market Trends and Top 20 Products

EED Software (by Farzam Kharvari)
ENERGY EFFICIENT DESIGN SOFTWARE

EED Software
 Introduction, Software 101
 History of EED
 Importance Of EED
 Market Trends
 A. Top 20 Software in the market
 B. Key Features of Software
 Comparison
 Keep in Mind
 What to do next? (Conclusion)

EED Software
 Add-ons instead of Independent Software
 Revit Whole Building Energy Analyses
 Climate Analyses in BIM
 Energy Loads in BIM
 Sun and Shadow Studies in BIM
 Solar Loads Analysis in BIM
 Wind Analysis in BIM
 Lighting Analysis in BIM

Introduction, Software 101
 1973 Oil crises

Introduction, Software 101
 1997, setting internationally binding emission reduction targets

History of EED
 1993 and 1997 crises leaded to EED
 In 1977 United States Department of Energy has been founded
Source: http://www.energy.gov/

History of EED
 In Iran, Renewable Energy Organization of Iran has claimed
independency in 2005
Source: http://www.suna.org.ir

History of EED
 Programs started 50 years earlier
Source: http://www.suna.org.ir

Importance Of EED
 Real Estate and Construction industries own 30 up to 40 percent of
world energy consumption.

Importance Of EED
Percent
 of
 world energy
 Consumption

Market Trends (Software Products)
 What to consider?
 1. Energy consumption in different periods (summer vs winter and etc.)
 2. energy costs
 3. calculation of temperature and humidity
 4. the most important factor:
complete building simulations
Note: Energy consumption contains lighting index and other similar factors.
Source: Energy simulation software selection methodology in the field of architecture
(Persian Articles)

 Accuracy Rate:
Acceptable
Source: Energy simulation software selection methodology in the field of architecture
(Persian Articles)

 target intervention strategies:
 Building envelope—wall and roof U-factors, glazing
performance, and sunshades
 Lighting—reduction of lighting power density from ASHRAE
maximum
 Daylighting—installation of daylighting switching/dimming
systems in perimeter area.
 HVAC—improved equipment efficiencies compared to ASHRAE
minimum, several system enhancements and design options, e.g.,
under-floor air distribution system, enthalpy wheel, ice storage, air-
side free cooling.
Source: Energy modeling of two office buildings with data center for green building
design (Article)

Current Market Preferences;
 DOE-2.1E
 BLAST
 SUNREL
 Bsim
 IDA ICE
 Energy-10
 TRNSYS
 PowerDomus
 Energy Express
 Ener-Win
 eQUEST
 ECOTECT
 DeST
 Tas
 HEED
 HAP
 EnergyPlus
 ESP-r
 IES<VE>
 TRACE
design (Article)

Key Features
 general modeling features;
 zone loads;
 building envelope
 daylighting and solar;
 infiltration,
 ventilation and multizone
airflow;
 renewable energy systems;
electrical systems and
equipment;
 HVAC systems;
 HVAC equipment;
 environmental emissions;
 economic evaluation;
 climate data availability,
 results reporting;
 validation;
 user interface,
 links to other programs
 availability.
design (Article)

A short Description of infiltration
 Infiltration is the process by
which water on the ground
surface enters the soil. Infiltration
rate in soil science is a measure
of the rate at which soil is able to
absorb rainfall or irrigation. It is
measured in inches per hour or
millimeters per hour.
design (Article)

BLAST
 predicts energy consumption
 Energy costs in buildings
www.bso.uiuc.edu/BLAST

BLAST subprograms
 Space Loads Prediction,
 Air System Simulation,
 Central Plant

BLAST subprograms (Space Loads Prediction)
 Space Loads Prediction,
 computes hourly space loads as
given based on:
 A. hourly weather data
 B. building construction
 C. operation details
 transmission loads,
 solar loads,
 internal heat gains,
 infiltration loads,
 the temperature
 control strategy used to
maintain the space
temperature.

BLAST at a glance
 energy performance

BSim
 user-friendly
 Detailed simulation
www.bsim.dk

BSim, components
 SimView (graphic editor),
 tsbi5 (building simulation),
 SimLight (daylight),
 XSun (direct sunlight and shadowing),
 SimPV (photovoltaic power),
 NatVent (natural ventilation)
 SimDxf (import from CAD)
www.bsim.dk

BSim, At a glance!
 energy design of buildings
 Moisture analyses
www.bsim.dk

Designer’s simulation toolkits (DeST)
 detailed analysis of building thermal processes
 HVAC system performance
www.dest.com.cn

Designer’s simulation toolkits (DeST), components!
 Medpha (weather data),
 VentPlus
 (natural ventilation),
 Bshadow (external shading),
 Lighting (lighting),
 CABD (CAD interface)
www.dest.com.cn

Designer’s simulation toolkits (DeST), At a glance!
www.dest.com.cn

Designer’s simulation toolkits (DeST), DeST family!
www.dest.com.cn

Designer’s simulation toolkits (DeST), DeST family!
 DeST-h(residences),
 DeST-c (commercial),
 DeST-e (building evaluation),
 DeST-r (building ratings)
 DeST-s (solar buildings)
www.dest.com.cn

DOE-2.1E
 hourly energy usage
 Energy cost of a building (given hourly weather information)
 building geometric and HVAC description,
 utility rate structure
simulationresearch.lbl.gv

What is “Utility Rate Structure”
 Set of factors that a utility firm chooses in computing consumers'
charges. Whereas most telephone and water bills are quite straight
forward, electricity bills can be very complex due to inclusion of
factors such as demand charge, fuel charge, power factor penalty,
time of day billing, etc.
 Read more: http://www.businessdictionary.com/definition/rate-
structure.html

DOE-2.1E, subprogram for translation of input
 BDL Processor

DOE-2.1E, subprograms
 LOADS,
 SYSTEMS,
 PLANT
 ECON

DOE-2.1E, at a glance!
 building design studies
 Analysis of retrofit opportunities,
 developing and testing building energy standards

The very very big QUESTION is:
 What does it mean to retrofit a building?
 And the answer is:
 Often retrofit involves modifications to existing
commercial buildings that may improve energy efficiency or
decrease energy demand. In addition, retrofits are often used as
opportune time to install distributed generation to a building.

ECOTECT
 highly visual architectural design and analysis tool
 links a comprehensive 3D modeler with performance analysis
functions
www.ecotect.com

ECOTECT
Covers:
 thermal,
 energy,
 lighting,
 shading,
 acoustics
 costs
www.ecotect.com

ECOTECT, at a glance
Designed for our generation (highly visualized)
www.ecotect.com

EnergyPlus
Coded based on
 BLAST
 DOE-2.1E.
input and output
 text files
www.energyplus.gov

EnergyPlus
Loads> User specified time.
www.energyplus.gov

EnergyPlus, computation
 heating and cooling system
 plant
 electrical system
www.energyplus.gov

EnergyPlus, computations great advantages
 accurate space temperature prediction
crucial for:
 system and plant sizing,
 Occupant comfort
 occupant health calculations
www.energyplus.gov

EnergyPlus, so what?
 Get this one if u want the accurate one!
www.energyplus.gov

eQuest
 We don’t have as easy as this one!!!
www.doe2.com/equest

eQuest
 Based on: DOE-2.2
 3 steps to get your final result!
 building creation wizard
 A. energy efficiency measure
 B. (EEM) wizard
 C. graphical results display module
www.doe2.com/equest

eQuest
In addition, Shows you:
 energy cost estimating
 daylighting and lighting system control
 automatic implementation of energy efficiency measures
 And view the alternative results (multiple simulations)
www.doe2.com/equest

eQuest
 eQUEST, DOE-2.2 performs an hourly simulation of the building
based on walls, windows, glass, people, plug loads, and
Ventilation and simulates the performance of
fans, pumps, chillers, boilers, and other energy-consuming
devices
www.doe2.com/equest
Calculates everything!
Congrats eQuest 

ESP-r
 ‘simulation follows description’
www.esru.strath.ac.uk/Programs/ESP-r.htm
Is That it all? 

ESP-r
 control of :
 complexity of the geometric,
 environmental control and operations
 Results in: matching the requirements of particular projects.
www.esru.strath.ac.uk/Programs/ESP-r.htm
Hooraaay 

Hourly analysis program (HAP)
 A. Sizing commercial HVAC systems and simulating hourly building
energy performance to derive annual energy use
 A. Energy costs
 Input Data are used directly in Software products
 B. Helps engineers for their day-to-day work
www.commercial.carrier.com
2in1

Hourly analysis program (HAP)
 configuring and controlling air-side HVAC systems and terminal
equipment.
 Part-load performance models are provided for split DX units,
packaged DX units, heat pumps, chillers and cooling towers.
 Hydronic loops are configured in 2 ways!
www.commercial.carrier.com

HEED
 user-friendly interface
 Great for early phases of your designs
www.aud.ucla.edu/heed
And what?

HEED, HEED requires just four project inputs
 floor area,
 number of stories,
 location (zip code, US Only),
 building type
HEED Protocol

HEED, schemes
 HEED automatically manages up to 9 schemes for up to 25 different
projects.

HEED, Advantages
 ease of use,
 simplicity of input data,
 a wide array of graphic output displays,
 Computational speed,
 the ability to quickly compare multiple design alternatives

IDA indoor climate and energy (IDA ICE)
 Wizard interfaces lead the user through the steps of building a
model for a specific type of study. The Internet browser based IDA
Room wizard calculates cooling and heating load.
 Standard interface for users to formulate a simulation model using
domain specific concepts and objects, such as zones, radiators and
windows.
 Advanced level interface—where the user is able to browse and
edit the mathematical model of the system.
 NMF and/or Modelica programming—for developers.
www.equa.se/ice

IES /Virtual Environment (IES /VES)
(Virtual Environment) modules include:
 ModelIT—geometry creation and editing
 ApacheCalc—loads analysis
 ApacheSim—thermal
 MacroFlo—natural ventilation
 Apache HVAC—component-based HVAC
 SunCast—shading visualisation and analysis
 MicroFlo—3D computational fluid dynamics
 FlucsPro/Radiance—lighting design
 DEFT—model optimisation
 LifeCycle—life-cycle energy and cost analysis
 Simulex—building evacuation
www.iesve.com
optimized with regard to comfort criteria and
energy use

IES /Virtual EnvironmentS (IES /VES)
 (Virtual Environment) modules include:
 ModelIT—geometry creation and editing
 ApacheCalc—loads analysis
 ApacheSim—thermal
 MacroFlo—natural ventilation
 Apache HVAC—component-based HVAC
 SunCast—shading visualisation and analysis
 MicroFlo—3D computational fluid dynamics
 FlucsPro/Radiance—lighting design
 DEFT—model optimisation
 LifeCycle—life-cycle energy and cost analysis
 Simulex—building evacuation
www.iesve.com
optimized with regard to comfort criteria and
energy use

PowerDomus
whole-building simulation tool for:
 analysis of both thermal comfort and energy use.
www.pucpr.br/lst

PowerDomus
 Aimed: heat & moisture (multi-layer walls)
 visualize the sun path
 Provides you the full reports on each individual element.
www.pucpr.br/lst
Primitive Style

SUNREL
 hourly building energy simulation program
Elements Considered:
 Building
 Environment
 Occupants
www.nrel.gov/buildings/sunrel
Small Project, Primitive Phase 2
(wheel Invention)

SUNREL
 Calculate:
 infiltration
 natural ventilation.
Small Project, Primitive Phase 2
(wheel Invention)

SUNREL
 Modeling Windows
 2 ways to do it:
 A. set your own windows including glass properties (U-value, fixed
surface coefficients)
 B. predefined models
 Limits in HVAC (Idealized systems only!!!)
 Fans intake can be schdueled
Small Project, Not that Primitive
BUT
LIMITED

Tas (Tas Building Designer)
 simulate the dynamic thermal performance of buildings and their
systems.
 natural and forced airflow.
 3D graphics-based geometry input(Including CAD files)
www.edsl.net

Tas (Tas Systems)
 HVAC systems/controls simulator
 performs automatic:
 A. airflow
 B. plant sizing
 C. total energy demand
www.edsl.net

Tas (Tas Ambiens)
 2D CFD package
 produces a cross section of micro climate variation in a space
www.edsl.net
Good for special propose only!

TRACE 700
 four distinct calculation phases:
 A. Design
 System,
 Equipment
 Economics
www.tranecds.com

TRACE 700
 B. During the Design:
 building heat
 building surfaces
 heat gains from people, lights, and appliances
 Impact of ventilation and infiltration
www.tranecds.com

TRACE 700
 C. Sizes all coils and air
www.tranecds.com

TRACE 700
 D. During the System Phase
 Loads on>equipment>duration= 8760-h USING room loads + aiside
system
www.tranecds.com

TRACE 700
 Providing Alternatives: (Economics Phase)
 alternative’s utility cost,
 installed cost,
 maintenance cost
 life cycle cost.
www.tranecds.com

TRNSYS
 Based on components
 fully integrated visual interface(TRNSYS Simulation Studio)
 HVAC-system, building envelope thermal balance and air network
are solved simultaneously
sel.me.wisc.edu/trnsys

TRNSYS, TRNSYS library
 solar thermal
 photovoltaic systems,
 low energy buildings
 HVAC systems,
 renewable energy systems,
 cogeneration,
 Fuel cells,
 Etc.

 modules implemented using other software (e.g. Matlab/Simulink,
Excel/VBA, and EES)

 non-expert users can run simulations and parametric studies
Let’s get started!

Comparison
 In next 5 slides you will be informed about software products
comparison all in once.

D.B. Crawley et al. / Building and Environment

Keep in Mind
 Be a multi-software-user
 Validation is mostly performed by companies
 Open-source software can be adjusted to meet your projects’
criteria
 Work as a team

Conclusion:
What to do next?
 Enjoy Ecotect and eQUEST!
Early phases of design studies

Add-ons instead of Independent
Software Products
U.S. department of energy approved Revit-based plugins in association
with Autodesk. (in cases 3ds max studio is used for lighting studies)
(Note: there are plugins or add-ons for othersoftwares including Sketch
up and Revit but they are NOT APPROVED and ACCURATE enough to
be used for real-time construction phases)
Source: Autodesk website

Revit Whole Building Energy
Analyses
Revit with eQuest
Green Building Studio
Vasari/Revit: Conceptual Energy Analysis
BPA workflows
Revit/Vasari: Conceptual Modeling
Revit: Modeling Building Elements
Ecotect Fundamentals
Revit/Vasari: Site & Topography
Vasari/Revit: Geodesic Shapes
BPA Workflows

What is BIM?
 BIM is a process for creating and managing all of the information on
a project – before, during and after construction. The output of this
process is the Building Information Model, the digital description of
every aspect of the built asset.
Building
Information
Modeling

Climate Analyses in BIM
Ecotect & Vasari: Climate Analysis
Vasari

Energy Loads in BIM
Vasari/Revit: Basic Energy Loads
Ecotect: Heat Gains/Losses
Revit MEP: Heating & Cooling Loads
Revit

Sun and Shadow Studies in BIM
Vasari/Revit: Sunpath & Viz
Ecotect: Shadows & Sunlight Hours
Ecotect: Shading Masks & Calcs
Ecotect: Right to Light & Solar Env.
Revit/Vasari

Solar Loads Analysis in BIM
Vasari/Revit: Solar Radiation
Ecotect: Solar Radiation
Photovoltaic Specification
Revit/Vasari

Wind Analysis in BIM
Vasari Wind Rose Tool
Vasari Wind Tunnel: Exterior Flows
Flow Design for Revit: Exterior Airflows
Simulation CFD: Detailed Heat Transfer and Fluid Flow Analysis
Source: Autodesk website Vasari

Lighting Analysis in BIM
Artificial Lights in 3dsMax (MAX Based)
Photorealistic Rendering
Revit: Illuminance Simulations
Daysim: Daylighting w. Controls
3ds Max: Daylighting Visualization (MAX Based)
Daylighting in BIM: Workflow and Modeling
Ecotect: Early Daylighting Studies
Ecotect

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