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Performance comparison with effect of door openings on variable and fixed frequency refrigerators/freezers.

Author(s) : LIU D. Y., CHANG W. R., LIN J. Y.

Type of article: Article

Summary

This article presents the effect of door openings of refrigerators/freezers on the energy consumption and compartment temperature variation by experimental approach. Two types of refrigerators/freezers were tested in the study. One is a type of variable frequency operation, while the other is a type of fixed frequency operation. The testing procedure was conducted under the ambient temperatures of 15 and 30 °C, and the door opening operation was carried out by one automatic robotic apparatus in an environmental control room. From the test results, the energy consumption of refrigerators/freezers with door openings was found to increase by 10%, compared with the same product without door openings. Based on the compartment temperature variation status during door openings, a control strategy was also proposed in order to improve the efficiency of variable frequency type refrigerators/freezers. Future studies on door opening control methodology can be addressed thanks to use characteristics, in order to help to control temperature variations and improve energy utilization by minimizing the effect of door openings.

Details

  • Original title: Performance comparison with effect of door openings on variable and fixed frequency refrigerators/freezers.
  • Record ID : 2005-0720
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 24 - n. 14-15
  • Publication date: 2004/10

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