[Equest-users] [Bldg-sim] Scroll Chiller

Fred Porter FPorter at archenergy.com
Mon May 19 16:51:00 PDT 2008

The eQuest library contains a curve set for an air-cooled scroll chiller. There is no indication if this represents multiple compressors or not, but if you compare the EIR-fPLR curve outputs w/other chillers you might be able to tell. These curves would be selected from the custom curves list in the chiller window / performance curve tab in eQuest, then from each drop down, "library" -> "chiller," after which the curve appears. 

Otherwise the multiple-compressor "reciprocating" chiller curves might provide a reasonable representation of typical scroll chillers, at least w/o the effort of making custom curves. These are selected by eQuest automatically when the user selects the "type" & compressors/ckt from  the main chiller window. Check the default minimum cycling and hot gas bypass ratios. 

----- Original Message ----- 
From: Eric Youngson 
To: bldg-sim at lists.onebuilding.org 
Sent: Monday, May 19, 2008 12:47 PM
Subject: [Bldg-sim] Scroll Chiller

SIM List,
                I need to model a scroll chiller (. Does anyone have an opinion on which eQUEST chiller is a reasonable choice for this? I was thinking that centrifugal would be the closest but this is simply based on mechanical operation. I would like to choose the closest model based on performance.
Eric Youngson PAE Consulting Engineers, Inc. 503.226.2921 Main
503.542.0567 Direct
503.226.2930 Fax
ericy at pae-engineers.com 
Mechanical 808 SW Third Avenue - Suite 300
Portland, OR 97204-2426
inspire  interpret  integrate 

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