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The newly mixed refrigerant R450A, preferable in environmental protection, is an alternative to R134a. In this study, the basic physical properties of R134a and R450A are compared. The thermal physical properties of R450A are introduced, and the calculation equation is verified by comparing with some experimental data. Based on the ideal refrigeration cycle, volumetric refrigeration capacities, volumetric compressor power consumption, coefficient of performance, exhaust temperature and compressor ratio of R450A and R134a are compared under different condensing temperature and evaporation temperature. The strengths and weaknesses of R450A are studied in the process of replacing R134a. And some enhanced measures in refrigeration cycle are also proposed to improve the practicality of R450A.
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Pages: 12
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Details
- Original title: Thermal physical properties and refrigeration cycle performance of R450A and R134a.
- Record ID : 30022055
- Languages: English
- Source: 8th international conference on compressors and refrigeration, 2017.
- Publication date: 2017/07/20
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Indexing
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Themes:
Thermodynamic measurements;
HFCs - Keywords: R134a; Comparison; R450A; Thermodynamic property; Performance; Refrigerant
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A thermodynamic property model for the R-134a/2...
- Author(s) : AKASAKA R., HIGASHI Y.
- Date : 2014/07/14
- Languages : English
- Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
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Measurements of thermodynamic properties for R1...
- Author(s) : HIGASHI Y., AKASAKA R.
- Date : 2016/07/11
- Languages : English
- Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
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Evaluation of potential use of R1132A as a refr...
- Author(s) : LOW R.
- Date : 2018/09
- Languages : English
- Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
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Evaluation of potential use of R1132A as a refr...
- Author(s) : LOW R.
- Date : 2018/09
- Languages : English
- Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
View record
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Thermophysical property measurements for R1234y...
- Author(s) : HIGASHI Y.
- Date : 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
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