[Bldg-sim] Cooling Design Calc Methods

[Ery Djunaedy]

On 07/05/2012 02:21 PM, Jim Dirkes wrote:
>
> Caveat emptor: I have not attempted this type of comparison, since my 
> "day job" is energy modeling with E+, not load calculations.
>

Jim, shouldn't you do this on every project?

Our lab does not do design, but we end up doing this type of comparison 
on virtually every project. There is no point of energy savings if we 
are still designing an energy hog. Like you said, load calc is not our 
job. But its our job to educate the owner that their building must have 
an optimal load, and that has to be reflected in the system and plant 
sizes. ONLY when the load is optimized, then we can talk about saving 
some energy.

Of course there is ALWAYS some resistance (in various degrees) from the 
mechanical engineers, but we usually succeed in streamlining our inputs 
with the load calc inputs (read: to make their assumptions less 
conservative and reduce their safety factor, that we end up with an 
optimum peak loads).

I believe that you have a similar experience. Care to share with the 
forum about your experience on this?

Ery
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