IIR document
Experimental investigation on convective heat transfer mechanism in a scroll compressor.
Author(s) : JANG K., JEONG S. K.
Type of article: Article, IJR article
Summary
This paper describes an experimental study on the convective heat transfer inside the scroll compressor. An experimental refrigeration system is composed with extensive instrumentations in the compressor that is operated at variable speeds. The 13 thermocouples installed inside the compressor monitor the temperatures of the scroll wrap during the compression process of the refrigerant. The temperature and the pressure of the refrigerant at suction, and the pressure at discharge ports are measured, and applied to the numerical simulation as the operating condition parameters. The temperature measured at the discharge port is used to verify the simulation result with relevant heat transfer coefficient. This paper describes the effect of motion of the orbiting scroll on the convective heat transfer in the scroll wraps. Separate experiments are performed to investigate the heat transfer in such a peculiar physical condition. With this experimental result, the effect of the oscillation of the wall on the heat transfer is quantitatively analyzed and applied to the simulation of compression process in scroll compressor. The whole consecutive compression processes in the scroll compressor is simulated in detail by solving equations of mass and energy balance for the refrigerant. The modified heat transfer coefficient correlation considering the effect of motion of the orbiting scroll predicts the discharge temperature better than other typical heat transfer coefficients.
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Details
- Original title: Experimental investigation on convective heat transfer mechanism in a scroll compressor.
- Record ID : 2006-1721
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 5
- Publication date: 2006/08
Links
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Indexing
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Themes:
Compressors;
Mass transfer - Keywords: Heat transfer coefficient; Correlation; Heat transfer; Research; Expérimentation; Convection; Scroll compressor
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