[Equest-users] Estimating groundwater temps

Julien Marrec julien.marrec at gmail.com
Thu Feb 28 22:56:00 PST 2019


Hi Nick,

I wrote an Openstudio measure on the subject in which I included a supporting excel file that will help you calculate that. You can just download the xlsx in the right column here and ignore the rest: 
https://bcl.nrel.gov/node/83628

E+ engineering documentation for the Burch and Christensen correlation: 
⁣https://bigladdersoftware.com/epx/docs/9-0/engineering-reference/water-systems.html#water-mains-temperatures.

Cheers,
Julien 
--
Sent from a mobile device, please excuse the brevity.

Julien Marrec, EBCP, BPI MFBA
Owner

Direct: +33 6 95 14 42 13
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On Feb 28, 2019, 20:51, at 20:51, Nicholas Caton via Equest-users <equest-users at lists.onebuilding.org> wrote:
>Hi everyone,
>
>I have a situation where I want to estimate the seasonal variance in
>the potable domestic water supply as a function of atmospheric drybulb
>temperatures.  I *think* eQuest has some algorithm to derive 12
>(monthly average) temperatures from the weather file data for
>makeup/DHW purposes... however after scanning the 2.1e engineers manual
>and a first pass at trying to find some helpful entry in the resource
>manual, I'm coming up dry so far.
>
>I'm trying hoping to source the equations & assumptions used for this
>estimation, so that I can modify it to fit my project.  I'm not
>specifically married to matching eQuest's output - any similar
>process/formulae would be welcome.
>
>Any suggestions?
>
>~Nick
>
>
>[cid:image001.png at 01D4CF6C.A8C3AA40]
>Nick Caton, P.E., BEMP
>  Senior Energy Engineer
>  Regional Energy Engineering Manager
>  Energy and Sustainability Services
>  Schneider Electric
>
>D  913.564.6361
>M  785.410.3317
>F  913.564.6380
>E 
>nicholas.caton at schneider-electric.com<mailto:nicholas.caton at schneider-electric.com>
>
>15200 Santa Fe Trail Drive
>Suite 204
>Lenexa, KS 66219
>United States
>
>[cid:image002.png at 01D4CF6C.A8C3AA40]
>
>
>
>
>
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