[Equest-users] Variables for cooling and heating curve-fits of PSZ systems

[Olivier Brodeur]

Dear users,

I want to confirm if the information I found in the DOE documentation is still up to date for the DOE2 engine in eQuest 3.65.
I am looking at the cooling and heating curve-fits of PSZ systems for EIR-FT and CAP-FT.  From what I gather, in cooling, the curves are functions of entering wet-bulb temperature and outside dry-bulb temperature.  In heating, the curves are functions of outside dry-bulb temperature and entering dry-bulb temperature.  Here are some extracts of DOE documents, where I found which variables are used for the curve-fit equations in cooling and heating.  I know some of these documents are from older versions of the DOE engine, so I am wondering if this info is obsolete or not?

Thank you.
Olivier

>From p. 336 of DOE-2.2 Volume 3: Topics
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[cid:image002.png at 01D4A6A6.AE0E9440]
>From DOE-2.1A Reference manual
[cid:image003.png at 01D4A6A6.AE0E9440]
[cid:image004.png at 01D4A6A6.AE0E9440]
[cid:image005.png at 01D4A6A6.AE0E9440]
[cid:image006.png at 01D4A6A6.AE0E9440]

>From DOE 2.1A Engineers Manual
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[cid:image008.png at 01D4A6A6.AE0E9440]
[cid:image009.png at 01D4A6A6.AE0E9440]
[cid:image010.png at 01D4A6A6.AE0E9440]
[cid:image011.png at 01D4A6A6.AE0E9440]
[cid:image012.png at 01D4A6A6.AE0E9440]

Olivier Brodeur, ing. PA LEED BD+C
Directeur / Principal
[ITC logo]<http://www.itctech.ca/>
514 437-9999 x1507 (Bureau)
514 777-1792 (Mobile)
obrodeur at itctech.ca<mailto:obrodeur at itctech.ca>



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