CO2 refrigeration system with integrated propan subcooler for supermarkets in warm climate.
收藏DataCite Commons2020-09-18 更新2025-04-16 收录
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http://www.iifiir.org/clientBookline/service/reference.asp?INSTANCE=EXPLOITATION&OUTPUT=PORTAL&DOCID=IFD_REFDOC_0019088&DOCBASE=IFD_REFDOC_EN&SETLANGUAGE=EN
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资源简介：
A CO2 refrigeration system with a secondary propane cycle was developed for operation at a higher ambient air temperature. The system has a CO2 gas cooler with integrated propane condenser and a propane sub-cooler. This allows sub-critical operation of CO2 at all ambient temperatures. A prototype unit was instrumented and tested. The optimal points for start of propane cycle was found at the ambient temperature of 23.5°C (field tests) and 19.4 °C (simulation). COP of the system was calculated for different European capitals. COP can be increased (up to 15.0 %) by increasing of air-velocity through the heat exchanger. An effective design of CO2-propane condenser was suggested. New design increases COP from 8.84 % to 6.91 % at 18.7 °C and 40.0 °C ambient temperature respectively.
提供机构：
International Institute of Refrigeration (IIR)
创建时间：
2016-12-19
