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[EnergyPlus_Support] HVAC templates and autosizing
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.
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