De Luca L. G. M., Silva E., Deschamps C. J. Assessment of simplifying hypotheses adopted for valve leakage modeling / trans. from Engl. M. A. Fedorova
The reed-type valves employed in refrigeration compressors must provide adequate sealing when closed to avoid leakage of gas between the compression chamber and the suction and discharge chambers. Recent studies show that valve leakage can considerably affect the performance of the small reciproc...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonomous Educational Institution of Higher Education
2020-06-01
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| Series: | Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение" |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/%D0%A2.%204,%20%E2%84%96%202%20(%D0%90%D0%A0%D0%B8%D0%AD%D0%9C)/85-95%20%D0%94%D0%B5%20%D0%9B%D1%83%D0%BA%D0%B0%20%D0%9B.%20%D0%93.%20M.,%20%D0%A1%D0%B8%D0%BB%D0%B2%D0%B0%20%D0%AD.,%20%D0%94%D0%B5%D1%88%D0%B0%D0%BC%20%D0%A1.%20%D0%94%D0%B6..pdf |
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| Summary: | The reed-type valves employed in refrigeration compressors must provide adequate sealing when
closed to avoid leakage of gas between the compression chamber and the suction and discharge
chambers. Recent studies show that valve leakage can considerably affect the performance of the small
reciprocating compressors used for domestic refrigeration. The present paper reports an investigation
on the adequacy of simplifying the hypothesis adopted in the simulation models of valve leakage.
The results indicate that the transient effects related to both the valve deflection and fluid flow are
negligible. Also, the ideal gas formulation was found suitable in some operating conditions found in
domestic refrigeration. On the other hand, leakage was found to be overpredicted by almost 20%
when the reed valve geometry was simplified to a circular plate in order to reduce the computational
processing cost |
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| ISSN: | 2588-0373 2587-764X |