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Re: [TRNSYS-users] LEED simulation - reference HVAC (appendix G ASHRAE 90.1)



With Trnsys everything is possible. The drawback is the time it takes. Reporting needs to be setup for a lot of outputs (hours load not met amoungst others). One of the things I find very "rough" is that there is no "auto-sizing". You'll need to manually "auto-size" all componants of the system.

2015-09-03 16:11 GMT+02:00 David BRADLEY <d.bradley@tess-inc.com>:
Filippo,
  Simulating the 90.1 Appendix G baseline systems almost always involves the use of multiple Types. If you have questions about a particular baseline system, please tell me which one and I can probably give you some guidance. For the most part the TESS HVAC library contains the components that you would need. We do have a VAV air handler component that I have used for LEED simulations although it is not officially part of either the standard library or the TESS Libraries.

  As far as the files that you need to submit along with your LEED forms, in my experience this is a bit of a guessing game between you and the reviewer. TRNSYS does not have the kind of standardized forms that LEED reviewers are used to. I usually submit the *.dck and the *.b17. In general I use a Type46 (printegrator) to generate one or more output files the contain the monthly power draw of all the active components of the systems (fans, pumps, compressors, heaters, etc.). I then put the contents of those files into a spreadsheet that I submit to the reviewer.
kind regards,
 David


On 09/01/2015 04:05, Filippo Busato wrote:
Hi everybody,
        has anyone experience LEED simulation in TRNSYS 17?

I have two questions:
1. is there any specific type developed, or a guideline, to simulate HVAC plant according to appendix G ASHRAE 90.1;
2. what are the files that needs to be attached to the LEED PI form? Is there any type or procedure guide to print the correct forms?

Thanks
Filippo Busato - PhD
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David BRADLEY
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Thermal Energy Systems Specialists, LLC
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