[Bldg-sim] Modelling oil-fired systems with different COPs in Designbuilder (Simple HVAC)

[John Aulbach]

Please give us your .INP and .PD2 files. How you can run oil in a "simple" HVAC model is beyond me. You cannot be in the Wizard.

John R. Aulbach, PE, CEM
Senior Energy Engineer

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________________________________
 From: "Gupta, Apeksha" <GuptaA at bre.co.uk>
To: "bldg-sim at lists.onebuilding.org" <bldg-sim at lists.onebuilding.org> 
Sent: Tuesday, September 11, 2012 6:34 AM
Subject: [Bldg-sim] Modelling oil-fired systems with different COPs in Designbuilder (Simple HVAC)
 

Hello All,
I’m trying to compare two oil boilers with different COPs. One is 55% efficient and the other 82% efficient. I’m using the Simple HVAC model, however the results for Zone heating (kWh) do not change for the two boilers. All other parameters of the building remain the same. One would expect the lower efficiency boiler to perform more leading to a higher energy consumption to a higher efficiency boiler. Has anyone come across this in simulations? Can’t understand what I am doing incorrectly.
 
Regards,
Apeksha
 
Apeksha Gupta MSc
Renewable Energy KTP Associate
BRE Wales & South West
Ethos, Kings Road,
Swansea- SA1 8AS
T+44 1792 630 109M+44 (0) 754 894 3314 EGuptaa at bre.co.uk   Wwww.bre.co.uk
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