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RE: [EnergyPlus_Support] HVAC templates and autosizing
HVAC templates it's not the only problem to use Energy+ as EPBD tool.
It's also necessary a friendly interface to introduce geometry and thermal bridges and discontinuities on walls. (this two last items in my opinion are not well solved in E+).
JOSEP SOLE
Dirección Tecnica POLIGLAS
nueva dirección mail : josep.sole@xxxxxxxxxxx
-----Mensaje original-----
De: Rahul Chillar [mailto:chillarrahul@xxxxxxxxx]
Enviado el: viernes, 23 de julio de 2004 21:11
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
CC: mkenergycentre@xxxxxxxxxxx
Asunto: Re: [EnergyPlus_Support] HVAC templates and autosizing
Hello David
As a mechanical engineer with fair amount of knowledge of HVAC systems, it is not very tough to understand the templates or the system. If a person patiently reads the documentation he can pick it up very quick.
I recently worked with a group of Architecture Grads working for the State of Illinois to simulate buildings, i worked with them and taught them how to use Energy Plus to simulate buildings etc, it took them a week to get going with the software and start cranking out simulation results.
I know a group of engineers working on developing an interface called "Hourly Load Calculation Program", which would be using Energy Plus as the Simulation Engine; their first release is due sometime in October i guess. If you wish to contact them kindly let me know.
Thanks
Rahul Chillar
Graduate Research Assistant
Building Systems Laboratory
University of Illinois U C
mkenergycentre <mkenergycentre@xxxxxxxxxxx> wrote:Dear All,
Some more questions, but this time about HVAC simulation. Before I
begin I think I should explain the reason for these questions. The UK
government is considering using EnergyPlus as the basis of a tool
that will form part of our Building Regulations, specifically to
enable energy labelling of buildings to comply with a new European
directive which will be introduced in January 2006. I (and many
others) are being asked to comment on the practicality of this
approach and, as well as the questions below, I'd be interested in
any other views that current users may have on this proposal. Bear in
mind that the tool is expected to be used by any qualified engineer
(not specialists) and should return the same energy 'rating' for a
building regardless of the user's knowledge.
1) I've read in a number of places that putting a system together by
hand in EnergyPlus can be difficult and time-consuming, but that
templates are much better. Is there a list of the currently available
templates? And which have autosizing incorporated?
2) How difficult is it to create a new template? For example, how
long did it take to create the 'Single Duct VAV w/ Reheat' template?
3) What skills are required to create a new template? If someone was
already a skilled software developer how long might it take to aquire
the EnergyPlus knowledge to be able to do this?
4) Finally, not an HVAC question, are there any users with experience
of creating an interface to EnergyPlus who can comment on any
possible pitfalls? I believe a major part of the work the UK
government is considering will be interface development so any
comments based on practical experiences would be appreciated.
Many thanks
David.
The primary EnergyPlus web site is found at:
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Thanks
Rahul Chillar
Grad Student
Building Systems lab
Univ Of Illinois Urbana Champaign
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