Training programme on advances building energy simulation

Different simulation programs

Bangalore, 2013

Pierre Jaboyedoff

• Your experience with simulation

• Your expectations from this training

programme

• Pierre Jaboyedoff, Partner Sorane SA,

• Master from the Swiss Federal Institute of Technology Lausanne, Thermodynamics,1981

• Fields of experience: – Renewables

– Energy efficiency in building and industry

– High energy performance building design

– Technology transfer

• Domains – Energy policy (different projects in Switzerland)

– Research and development

– Application of simulation in design processes

– Energy audits and monitored data of projects

• Early milestones – Reading of a paper on solar engine in 2nd year engineering

– Expression of interest for a master thesis in this domain

– Master Thesis on Solar thermal irrigation pump (Indo-Swiss project 1980-1983)

• Research assistant at EPFL on vacuum solar thermal collectors (1981)

2 years as project leader in the development of solar thermal irrigation pumps in CSMCRI, Bhavnagar, Gujarat (Indo-Swiss project

1980-1983)

• Research assistant at Swiss Federal Institute of Technology Zurich on energy and telecomunication

• 1 year of development studies in Geneva (Institute of Development Studies)

• R&D and consulting engineer at Sorane SA since 1985, partner since 1990

• Consulting and R&D in energy (building and systems, industry), passive cooling, daylighting, building physics

• Research projects:

IEA SH&C Task VII: Central Solar Heating Plants with Seasonal storage

SOFAS: Design guidelines for active solar heating systems (TRNSYS)

IEA ECO Annex XIII: Energy Management in Hospitals

IEA SH&C Task XI: NUNI atrium

IEA ECO Annex XXI: Subtask B, appropriate use of building simulation programs (with EMPA)

IEA SH&C Task XII: Atria, stratification, energy

IEA ECO Annex XXVI: Big glazed spaces

PASCOOL: passive cooling of office buildings (LESO)

PACER: Passive solar training programme

IEA 23: Large non residential building design process Subtask B Leadership

• National research projects and own funded

developments – Dévelopement de

• MODPAS (simulation dynamique nodale)

• STAPAS (simulation d’atrium, dimensionnement d’ouvrants)

• RECUP (simulation de systèmes de ventilation)

• Superlite+Interface (éclairage naturel)

• TRNSYS (modules spécifiques)

• EES (Engineering Equation Solver)

• Main consultant for system analysis and technology sourcing, dissemination concepts – Resulted in more than 2 millions CO2 abatement

• 2009-> New building energy efficiency project (BEE – MOP)

CO2 emission reduction in TERI-SDC small industries initiatives

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Emission Reduction

• Know-how development process in the company

Research & Development

Real Projects

Direct application

Practical experience

gained

R&D needs definition

Broadening the scope of

R&D

Knowledge transfer (Teaching, Extension)

Simulation tools

Development

Use in design processes

MonitoringComparisonValidation

Energy management

Energy Policy

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Visdoe Equest Energyplus+Design Builder

IES Trnys others (HAP,Therm)

•Familiarity ( <3 years experience + > 3 years experience) •Based on CVs of 20 participants who have registered till Nov 8

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Visdoe Equest Energyplus+Design Builder

IES Trnys others (HAP,Therm)

•Proficiency means > 3 years experience •Based on CVs of 20 participants who have registered till Nov 8

• Day 1

– Introduction to software capabilities

– Simulation for IDP, examples

– Quality assurance

– Technology sets

• Day 2

– Solar protection

– Natural ventilation & mass

– Advanced hybrid HVAC systems

• Compare softwares under different

criteria

• Incomplete analysis by nature

• Look at capabilities for Integrated Design

Process, early stage design concepts of

advanced systems

• Monthly balance – LESOSAI, ….

• Some of the dynamic building simulation programmes – Simplified

• Ecotect

– Complete detailed • Energyplus

• TRNSYS

• IDA-ICE

• IES-VE

– Manufacturer based programs • HAP

• Trace

• Public domain source code – Energyplus

• Well documented, tested

• Design Builder (Interface) – Graphical building interface

– CFD (validation …)

– HVAC interface still limited (need knowledge of input files to go further, cannot be taken back to Design Builder)

• Private source code – IES-VE

– TAS

• TRNSYS – System based, building integrated as a

component

– Modular • User written modules can be added

• Many additional modules available

• Many PhD, Master with a Trnsys routine as side product

• Good user forum

• Physically intuitive

• Danger of the freedom for the user

– Co-simulation possible (EES, Matlab, …)

– Well documented, validated

• Energyplus

• TRNSYS

• Spark

• Dymola

• Simulink

• Modelica

• IDA-ICE

• Equation more flexible

• Not sure to get a working model

• Normally much longer simulation time

BLAST Bsim DeST

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Energy

Express

Energy-

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Domus SUNREL Tas TRACE TRNSYS

Design

Builder

Co-simulation

X EES, Matlab,

…

Source code X X X X ? X

Modularity XX

Compile own

version X X X X

Developing

own modules XX

Debugging XX

Visualising the

simulation and

results X X X

XX, flexible,

with EES if

necessary

External

movable blinds X detailed ? ? ? ?

X basic,

detailed

Slab cooling X ? X ? ? X

Radiant panels X ? X ? ? X

Natural

ventilation X ? ? X ? X

Interoperabilit

y X X X X

Whole building

energy

compliance X X X X X X X X (X) X

Detailed

modeling at

concept level X

Flexibility X

Indo-Swiss Building Energy Efficiency Project Project Management and Technical Unit (PMTU)

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