Hu Y. S., Wei H. J., Yu B., Yang O. X., Wang J., Wu J. Research on the vapor injection of two-stage rotary compressor / trans. from Engl. M. A. Fedorova
In order to understand the vapor injection flow characteristics of two-stage rotary compressor in the course of compression, a mathematical model based on mass conservation equation, energy equation and thermodynamic identity was established and proved by P-V diagram testing results. Some useful...
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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
2021-12-01
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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/2021/%D0%A2.%205,%20%E2%84%96%204%20(%D0%90%D0%A0%D0%B8%D0%AD%D0%9C)/65-74%20%D0%99.%20%D0%A1.%20%D0%A5%D1%83,%20%D0%A5.%20%D0%A6%D0%B7.%20%D0%92%D1%8D%D0%B9,%20%D0%91.%20%D0%AE%D0%B9%20[%D0%B8%20%D0%B4%D1%80.].pdf |
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| Summary: | In order to understand the vapor injection flow characteristics of two-stage rotary compressor in the
course of compression, a mathematical model based on mass conservation equation, energy equation
and thermodynamic identity was established and proved by P-V diagram testing results. Some useful
conclusions about pressure in the intermediate chamber and mass flow of vapor injection in the course
of compression were also given out. The results show that, gas backflow between the intermediate
chamber and the vapor injection channel is an important defection of two-stage rotary compressor
which can be solved by the application of injection valve in vapor injection channel. The injection
valve can obviously reduce the gas backflow and the power loss in the course of compression while
increasing the pressure fluctuation in the intermediate chamber. Experiments show that the COP of
two-stage rotary compressor with the injection valve increased by over 2% in ASHRAE/T working
condition. |
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| ISSN: | 2588-0373 2587-764X |