Test Verification of the Standard Compilation of “Energy-Saving Monitoring for Refrigeration Storage System” in Beijing

Table 6

COP test results of different seasons and units.

Cold storage; number	Project	Refrigerant	Design of cold storage; temperature (°C)	Types of condenser; units	Test time	COP	Seasonal deviation; of COP test results	Deviation from; COP reference value
1	A food co. ltd. of Beijing	R22	−18°C	Air-cooled condensing unit	Winter	2.83	45.88%	57.22%
					Summer	1.94		7.78%
2	A food co. ltd. of Beijing	R22	−18°C	Evaporation condensing unit	Winter	1.94	6.01%	7.78%
					Summer	1.83		1.67%
3	A food co. ltd. of Beijing	R22	−18°C	Air-cooled condensing unit	Summer	1.88	—	4.44%
4	A food distribution company of Beijing	R717	−18°C	Evaporation condensing unit	Winter	1.86	0.54%	3.33%
					Summer	1.85		2.78%
5	A cold storage of food refrigeration plant of Beijing	R717	−18°C	Evaporation condensing unit	Summer	1.65	—	−8.33%
6	A by-product market co. ltd. of Beijing	R717	−18°C	Evaporation condensing unit	Summer	1.50	—	−16.67%
7	A college pilot base in China	R22	4°C	Air-cooled condensing unit	Summer	3.43	—	3.94%