IIR document
Edge gap as a geometric parameter to characterize the sealing performance of compressor valves.
Author(s) : REZENDE G. C., SILVA E., DESCHAMPS C. J.
Type of article: Article, IJR article
Summary
Leakages in valves can significantly affect both the isentropic and volumetric efficiencies of small reciprocating compressors used in household refrigeration systems. This paper reports an analysis of leakage in valves of low-capacity reciprocating compressors. An experimental setup based on the constant volume method is developed to measure leakage in suction and discharge compressor valves independently. The valve leakage is measured for three different valve designs and the concept of edge gap is proposed as a useful parameter to characterize the sealing performance of such valves and to predict the resulting leakage of different refrigerants. This parameter is affected by the characteristics of the reed and valve seat surfaces and the pressure load acting on the valve. The edge gap is determined through a combined experimental-numerical procedure by matching leakage predictions obtained from a validated numerical model with the corresponding measured values. The results indicate that leakage can vary considerably with valve design, with typical edge gap values being between 0.11 and 0.61?µm.
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Details
- Original title: Edge gap as a geometric parameter to characterize the sealing performance of compressor valves.
- Record ID : 30023969
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 90
- Publication date: 2018/06
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2018.03.019
Links
See other articles in this issue (24)
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Indexing
- Themes: Compressors
- Keywords: Tightness; Clearance; Measurement; Valve (compressor); Expérimentation; Leakage; Reciprocating compressor
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A combined experimental-numerical procedure to ...
- Author(s) : REZENDE G. C., SILVA E., DESCHAMPS C. J.
- Date : 2016/07/11
- Languages : English
- Source: 2016 Purdue Conferences. 23rd International Compressor Engineering Conference at Purdue.
- Formats : PDF
View record
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VALVE LOSSES IN RECIPROCATING COMPRESSORS.
- Author(s) : BAUER F.
- Date : 1988/07/18
- Languages : English
View record
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Influence of break-in on the leakage through re...
- Author(s) : DOS SANTOS F. L., SILVA E., DESCHAMPS C. J.
- Date : 2019/12
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 108
- Formats : PDF
View record
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MATHEMATICAL SIMULATION OF LEAKAGE IN THE PISTO...
- Author(s) : MILOVANOV V. I., BUDANOV V. A.
- Date : 1984
- Languages : Russian
- Source: Kholodilnaya Tekhnika - n. 6
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Influence of wear on leakage through reed-type ...
- Author(s) : DOS SANTOS F. L., SILVA E., DESCHAMPS C. J.
- Date : 2018/07/09
- Languages : English
- Source: 2018 Purdue Conferences. 24th International Compressor Engineering Conference at Purdue.
- Formats : PDF
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