Re: [EnergyPlus_Support] Energy Plus vs TRNSYS

[Linda Lawrie <linda@xxxxxxxxxx>]

A comparison of TRNSYS, EnergyPlus and 18 other simulation programs was
completed in 2005.  That report is available here:
<http://www.eere.energy.gov/buildings/tools_directory/pdfs/contrasting_the_capabilities_of_building_energy_performance_simulation_programs_v1.0.pdf>http://www.eere.energy.gov/buildings/tools_directory/pdfs/contrasting_the_capabi\
lities_of_building_energy_performance_simulation_programs_v1.0.pdf

Since then, a large number of new features have been added to EnergyPlus
(in versions 1.2.3, 1.3, 1.4, 2.0, 2.1 and soon 2.2):
<http://www.eere.energy.gov/buildings/energyplus/features.html>http://www.eere.energy.gov/buildings/energyplus/features.html

As to free interfaces, there is now the Sketchup plugin, the 
EnergyPlus example file generator and others.
Look at: http://www.eere.energy.gov/buildings/energyplus/interfaces_tools.html

Read the Getting Started manual introduction and the Engineering 
Reference introduction for a description (in detail) of how EnergyPlus works.

Linda

At 02:10 AM 4/15/2008, Marcello wrote:
>Dear group members,
>
>I'm a beginner user of building energy simulation programs, and I used
>till now TRNSYS 16. I am thinking to pass to another energy simulation
>program, as I am not very satisfied of TRNSYS.
>
>I was thinking then to Energy+, but I am wondering about some questions:
>
>1)      Which are the main differences between the TRNSYS "philosophy" and
>the Energy+ one?
>2)      I read that Energy+ uses the transfer function to simulate the
>building envelope. What does it means? Is this different to the
>approach considering U-values and thermal mass of walls?
>3)      I read also that Energy+ is only a simulation engine, while the
>graphical interface must be provided by a thirst part. Does it exist
>any free graphical interface, in order to test if Energy+ is adapt to
>my needs?


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