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Project Info COMPLETE Project Title Cascade C02/NH3 Refrigeration System Efficiency Study Project Number PGE 0707 Investor Owned Utilities PG&E End-use Process Sector Commercial, Agricultural Project Year(s) 2007 - 2009
Description

Project Summary

This assessment will build in-depth understanding of the operation of CO2-based refrigeration systems and a validated model of the energy savings compared to the other equipment.  The measured performance of a CO2/NH3 Cascade system over a six month period was compared to the calculated performance of a comparable stat of the art two stage ammonia system.  This first of a kind in California CO2/NH3 Cascade system uses CO2 as a refrigeration fluid for low temperature processes in place of freon and ammonia, with benefits in environmental impact and energy efficiency.  For more information, contact the sponsoring organization.

Project Report Document
Industry
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