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 EcoYap?
Hekimsuyu Cad. 559. Sk.
No:39 34255 K???kk?y ?stanbul T?rkiye
Tel: 90-212-617-2296
Fax: 90-212-617-2297
www.eco-yapi.com
www.facebook.com/mimtaecoyapi
www.linkedin.com/company/mimta
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
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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
15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States
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Hi Nick,
First of all, I can not assigned Lake/Well heat exchanger on CW loop. I
can attach Lake/Well heat exchanger on Lake/Well type circulation loop
and i can assign Lake/well circulation loop as chiller condenser loop.
We assigned design constant sea water temperature with temperature
schedule on equest ground loop heat exchanger tab as you can see at the
attachment.
For example, i tryied this configuration on a simple model that include
air cooled chillers. We thought that when we changed air cooled chiller
with sea-water cooled chiller on same simple model, the cooling
electrical consumption will be decreased. But the cooling consumption
increased. Did we think mistake?
Thank you for kindly helping
Best Regards
Sefa
14.08.2017 20:03 tarihinde Nicholas Caton yazd?:
--
Sefa Sahin, LEED AP BD+C
Mimta EcoYap?
Hekimsuyu Cad. 559. Sk.
No:39 34255 K???kk?y ?stanbul T?rkiye
Tel: 90-212-617-2296
Fax: 90-212-617-2297
www.eco-yapi.com
www.facebook.com/mimtaecoyapi
www.linkedin.com/company/mimta
I missed CC'ing the list on previous reply. Mia culpa.
Wanted to get this in archive.
Thanks,
DARIC R ADAIR PE, C.E.M.
Mechanical Engineer, Energy Analyst
Henderson Engineers
Tel (913) 742-5530
daric.adair at hendersonengineers.com
Licensed in KS