[Equest-users] HVAC pump with 11 W/gpm

[David Eldridge]

It’s a trade-off, the limit is prescribed for the baseline model but the proposed design may pump horsepower that is called for in the design – however if you go above the limit then there will have to be some corresponding efficiency to trade-off the net effect of the pump power.

For your particular project given some constraints it may not be possible to vary pipe size, layout, and •T enough to achieve the limit – that’s okay if the modeling will still show net project savings from control of the pumping system and other energy efficiency measures in the project.

David


David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP
Associate

Direct: (847) 316-9224 | Mobile: (773) 490-5038

Grumman/Butkus Associates | 820 Davis Street, Suite 300 | Evanston, IL 60201
Energy Efficiency Consultants and Sustainable Design Engineers

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From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Dante Garcia via Equest-users
Sent: Thursday, March 07, 2019 2:57 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] HVAC pump with 11 W/gpm

Hello,

I have a general question redargin how to design HVAC pump with 11 W/gpm per primary and secondary loops in evaporator.

Please advise how a design can achieve that target. Most design that I have seen exceeds that limits becasuse it does not consider head.

Regards,

Dante

--

SUMAC

Dante Garcia // LEED AP BD+C

dgarcia at sumacinc.com<mailto:dgarcia at sumacinc.com>

www.sumacinc.com
<http://www.sumacinc.com/>
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