[Equest-users] Sea-Water Cooled Chiller Modeling

[Nicholas Caton via Equest-users]

Hi Sefa,

Did Chris Jones’s suggestion from a few months ago to try a Lake/Well heat exchanger on the associated  CW not work out?
That would permit you to “force feed” the temperatures seen by the chillers in a direct fashion via temperature scheduling.  Picture follows for clarity.

Please update your query with what you’ve tried and what seems to be not working.  I have another suggestion which may offer some relative simplicity from a custom performance curve development standpoint, but intuitively I also would have tried the Lake/Well approach first to see if that gets the job done.

~Nick

[cid:image003.png at 01D314F5.458C1DF0]

[cid:image001.png at 01D314E9.11250290]
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

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From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Sefa Sahin via Equest-users
Sent: Monday, August 14, 2017 6:36 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Sea-Water Cooled Chiller Modeling


Our project building is located in Istanbul/Turkey. Cooling will be provided by centralised two chillers. There is not a cooling tower. The project building location is very close the sea and this chillers will be fed by the sea-water condenser system.
There is a titanium plate type heat exchanger between sea-water and chiller condenser water. Sea water condenser flow and return temperatures 22C(71.6F) and 27C(80.6F).
Chiller condenser water flow and return temperatures 29C(84.2F) and 23C(73.4F). In addition, condenser total water flow rate is 340 kg/hr at 250 kPa.
How can sea-water condenser system be modeled in eQuest?
Thank you,
Best Regards


Sefa Sahin, LEED AP BD+C
Mimta EcoYapı
Hekimsuyu Cad. 559. Sk.
No:39 34255 Küçükköy İstanbul Türkiye
Tel: 90-212-617-2296
Fax: 90-212-617-2297

www.eco-yapi.com<http://www.eco-yapi.com/>

www.facebook.com/mimtaecoyapi<http://www.facebook.com/mimtaecoyapi>

www.linkedin.com/company/mimta<http://www.linkedin.com/company/mimta>






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