[Equest-users] Sample Ice Rink File

[Keith Swartz]

Justin,

I recently started modeling an ice rink in eQUEST and ran into some other limitations you might want to consider. The coldest brine temperature I was allowed to enter was 20F. For hockey the ice needs to be around 22F and 20F glycol just isn't cold enough; around 15F is more typical. The program will probably calculate the building loads fine, but the brine flow and pump energy will be off. Does anyone know a way around this?

eQUEST also cannot model some of the dehumidification options that we are considering. I ended up doing spreadsheet calculations for most of the proposed upgrades and am working with a vendor who has done many ice rink retrofits and developed a spreadsheet to evaluate the dehumidification options (as well as some measures I had in my spreadsheet).

________________________________
Keith Swartz, P.E., LEED AP

Energy Engineer / Senior Project Manager
Energy Center of Wisconsin
455 Science Drive, Suite 200, Madison, WI 53711
Phone: 608.238.8276 x123
Fax: 608.238.0523

The Buildings Team
Design decisions through energy, economics and emissions analysis.
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From: Justin Elkin [mailto:jelkin at mreng.ca]
Sent: Tuesday, January 04, 2011 2:45 PM
To: eQUEST Forum
Subject: [Equest-users] Sample Ice Rink File

I'm new to energy modeling with eQUEST and am trying to build a model for a community center consisting of a library, a pool and an ice rink. We are hoping that we can use rejected heat from the ice plant in the rest of the building.  I've begun entering the ice plant data into the program; however, when describing the brine loop we are running into a bit of trouble.

1)         We expect the brine pump head to be 60ft. We tried to input this value but eQUEST only allows a brine head value that is =/< 40ft. Have others encountered this same problem?

2)        We are having trouble attaching a chiller/heat pump to the brine loop. Ideally we'd like to have the brine loop run off some water-to-water heat pumps that supply the hot water loop but we haven't figured out how to go about this

I've heard of a sample ice rink file around, does anyone know how I can get this?  It may help solve these and other issues.  I have attached the .pd2 and .inp files.  Any help is appreciated, thank you;

Justin

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