[Equest-users] Modeling Gas Engine Heat Pump (GHP) in eQUEST Software

[Weller, Michael]

Hi Ahmad, Jeff,

I haven’t used it before, but it does look like you can use the GAS-HEAT-PUMP code-word as the HEAT-SOURCE for DX units to model a gas-engine-driven compressor (see below).

[cid:image001.png at 01D9F69A.089AF5F0]

[cid:image002.png at 01D9F69A.089AF5F0]

In the User Guide Volume 2 (dictionary), the Air-to-Air Heat Pump section should have more information about the associated keywords for the system:

[cid:image003.png at 01D9F69B.4C61EC70]



Michael Weller
Associate
Energy Modeling Lead

GLUMAC engineers for a sustainable future™
A Tetra Tech Company

17885 Von Karman Ave, Suite 500
Irvine, CA 92614

Direct:   949.383.4941
Email:    mweller at glumac.com<mailto:mweller at glumac.com>



From: Equest-users <equest-users-bounces at lists.onebuilding.org> On Behalf Of Haberl, Jeff via Equest-users
Sent: Wednesday, October 4, 2023 7:28 AM
To: equest-users at onebuilding.org; Ahmad Fraij <fraij at yahoo.com>
Subject: Re: [Equest-users] Modeling Gas Engine Heat Pump (GHP) in eQUEST Software

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Hello Ahmad:

I'm not clear about your system. A quick look at the EQUEST manual does not show such a system in the index.

However, a general google search of such systems shows lots of options, for example, a gas fired furnace combined with a heat pump? Or possibly a nat gas fired engine driving a heat pump compressor.

The first system is easy to model. The second would be a challenge.

Jeff


Jeff S. Haberl, Ph.D., P.E.inactive, FASHRAE, FIBPSA               We are like fluttering leaves on the branches of trees

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________________________________
From: Equest-users <equest-users-bounces at lists.onebuilding.org<mailto:equest-users-bounces at lists.onebuilding.org>> on behalf of Ahmad Fraij via Equest-users <equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>>
Sent: Tuesday, October 3, 2023 12:43 AM
To: equest-users at onebuilding.org<mailto:equest-users at onebuilding.org> <equest-users at onebuilding.org<mailto:equest-users at onebuilding.org>>
Subject: [Equest-users] Modeling Gas Engine Heat Pump (GHP) in eQUEST Software

Hello, Does anybody has idea how to model gas engine heat pump (GHP) in eQUEST software? There are two types of this GHP as below: Air to water GHP unit. VRF GHP. Please refer to the below link for more details about these GHPs. Thanking in
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Hello,

Does anybody has idea how to model gas engine heat pump (GHP) in eQUEST software? There are two types of this GHP as below:


  *   Air to water GHP unit.


  *   VRF GHP.

Please refer to the below link for more details about these GHPs. Thanking in advance for your help.

Gas-Engine Heat Pump (GHP)｜Energy Systems｜YANMAR<https://urldefense.com/v3/__https:/www.yanmar.com/global/energy/ghp/__;!!KwNVnqRv!BeJ7hz6XAHGf1EVB7V0mIp8ljoUmLoSOavtcCZRqc2tzGfFjxjccK-8dHpAOCCwILEl0hYyB0HJQzZQCrs9AOAOeKW_IOUgD$>

Gas-Engine Heat Pump (GHP)｜Energy Systems｜YANMAR

The introduction of Gas-Engine Heat Pump (GHP) from Yanmar.


Ahmad


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