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Dynamic modeling and validation of a triple-evaporator domestic refrigerator/freezer with R-600a. 

Number: 2501

Author(s) : LIANG C., BRAUN J. E., GROLL E. A., ZIVIANI D.

Summary

As domestic refrigerator/freezer designs become increasingly more complex and the technology implemented advance, dynamic modeling of the entire system becomes more important for predicting behavior and reducing energy consumption. In this work, a triple-evaporator domestic refrigerator/freezer with a variable speed compressor and R-600a as the working fluid is investigated with the goals of identifying an improved cycle architecture and control algorithm. A detailed dynamic model has been developed to predict the performance of the triple-evaporator refrigeration/freezer. The model uses detailed component models (e.g., heat exchangers, compartment dynamic loads, compressor, among others) and implements various control schemes. The refrigerator/freezer has been fully instrumented and tested inside a psychrometric chamber at the Ray W. Herrick Laboratories at Purdue University. The experimental results have been used to assess the performance of the unit, conduct steady-state and transient model validation. The validated model is used to identify potential cycle improvements.

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  • Original title: Dynamic modeling and validation of a triple-evaporator domestic refrigerator/freezer with R-600a. 
  • Record ID : 30030754
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022

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