Re: [EnergyPlus_Support] Modeling Degradation of a VAV System Using EnergyPlus

[Philip Haves <phaves@xxxxxxx>]

What sort of degradation would you like to model?  Do you have specific 
causal mechanisms in mind: leaking valves and dampers, drifting sensors ...?

noelcrrl wrote:

> Hi. I am trying to model a VAV HVAC system and study its performance
> as a function of time. In essence, I am trying to model the
> degradation of a HVAC system over time. I am aware that EnergyPlus is
> limited and in some ways not capable of simulating the degradation of
> an HVAC in terms of performance and efficiency. However, would it be
> possible to input a defined efficiency versus time curve into
> EnergyPlus that would represent the HVAC system efficiency as a
> function of time? If this is possible, what process should I follow
> to accomplish this? Also, is this the right approach or should I go
> about this another way? And finally, is there a resource that I could
> tap into that would have a number of efficiency versus time curves
> that could be helpful.
>
> Thanks in advance for your help!
>
>  


-- 
*****************************************
Philip Haves
Leader, Commercial Building Systems Group
Lawrence Berkeley National Laboratory
1 Cyclotron Road Bldg 90R3111
Berkeley, CA 94720-8134
Tel: (510) 486 6512
Fax: (510) 486 4089
*****************************************




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