Can Soper heat be recovered from DX condensers in eQuest?

5 posts / 0 new
Last post

And can it be used to preheat either domestic hot water or space heat?
Thanks in advance.
John R Aulbach, PE

John Aulbach's picture
Offline
Joined: 2011-09-30
Reputation: 1

Hi John,

I haven?t done this, but it does look like eQUEST has this capability.

If you search the DOE2 dictionary (e.g., https://doe2.com/Download/DOE-22/DOE22Vol2-Dictionary_48r.pdf) for ?superheat?, you should see it appear a few times, with relevant information appearing in the COOL-WASTE-HEAT keyword and related keywords:
[cid:image001.png at 01D936F9.72169720]
Be sure to read through the related keywords, though, as it appears to have different capability depending on system type; e.g., see WASTE-HEAT-USE:
[cid:image003.png at 01D936FB.68F86220]

To access these keywords within eQUEST, see the ?Cap Curves/Waste Ht? tab within the ?Heating? tab of an air-side HVAC system:
[cid:image002.png at 01D936FA.9086FD70]

Best,

Phil Jordan

Phil Jordan's picture
Offline
Joined: 2019-05-02
Reputation: 0

Thank you, Phil. I will play with this.
John
On Thursday, February 2, 2023 at 11:43:54 AM PST, Phil Jordan
wrote:

Hi John,

?

I haven?t done this, but it does look like eQUEST has this capability.

?

If you search the DOE2 dictionary (e.g., https://doe2.com/Download/DOE-22/DOE22Vol2-Dictionary_48r.pdf) for ?superheat?, you should see it appear a few times, with relevant information appearing in the COOL-WASTE-HEAT keyword and related keywords:

Be sure to read through the related keywords, though, as it appears to have different capability depending on system type; e.g., see WASTE-HEAT-USE:

???????????????

?

To access these keywords within eQUEST, see the ?Cap Curves/Waste Ht? tab within the ?Heating? tab of an air-side HVAC system:

?

Best,

?

Phil Jordan

?

John Aulbach's picture
Offline
Joined: 2011-09-30
Reputation: 1

John, for what it?s worth, I haven?t been able to get this to actually work in any of the recent versions so please share if you?re successful.

Anthony Hardman, PE, LEED AP BD+C
Principal, Owner

The Green Engineer | Sustainable Design Consulting
D: 978.341.5459 | O: 978.369.8978
E: anthony at greenengineer.com

Anthony Hardman, PE
ahardman's picture
Offline
Joined: 2011-09-30
Reputation: 0

Seems to work for supplementing DHW but not space heating (although it seems to indicate it can in the inputs).
Still playing with it.
John
On Thursday, February 2, 2023 at 01:21:41 PM PST, Anthony Hardman wrote:

John, for what it?s worth, I haven?t been able to get this to actually work in any of the recent versions so please share if you?re successful.?

?

Anthony Hardman, PE, LEED AP BD+C??

Principal, Owner

?

The Green Engineer?|?Sustainable Design Consulting

D: 978.341.5459?|?O: 978.369.8978

E:?anthony at greenengineer.com

?

John Aulbach's picture
Offline
Joined: 2011-09-30
Reputation: 1