[Equest-users] District Thermal Energy-cooling plant average efficiency

[Fred Betz]

Since the cooling system, pumps, and heat rejection all use electricity you could set all the pump and cooling tower energy to zero, and then input an appropriate EIR.

Otherwise you could determine how much chilled water is produced and adjust the power of the various chiller plant components to match.

I would probably just use the typical ASHRAE baseline values for all the chiller plant components, and vary the chiller EIR to get the appropriate plant COP.

Hope that makes sense.

Fred


Fred Betz  PhD., LEED AP
Sustainable Systems Analyst



AEI | AFFILIATED ENGINEERS, INC.
5802 Research Park Blvd. | Madison, WI  53719

P: 608.236.1175 | F: 608.238.2614
fbetz at aeieng.com<mailto:fbetz at aeieng.com>  |  www.aeieng.com<http://www.aeieng.com/>



From: 冷面寒枪 [mailto:503271081 at qq.com]
Sent: Saturday, March 23, 2013 4:35 AM
To: Equest-users
Subject: [Equest-users] District Thermal Energy-cooling plant average efficiency


Dear All,

"Treatment of District or Campus Thermal Energy in LEED" states that "COP of 4.4  for the total cooling plant average efficiency",

but the average efficency includes towers and primary pump equipment.How can I convert the average COP to EIR to use in eQUEST

software?

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