A basic diagram of the refrigeration system, in which liquid hefium is circulated by means of a jet pump, is described. The equations have been derived to design jet devices which operate with liquid helium. In the experimental setup with a jet pump the flow rate of liquid was 5 to 10 times larger
A feasibility study of steam-jet refrigeration
β Scribed by S. A. Sherif; D. Y. Goswami; G. D. Mathur; S. V. Iyer; B. S. Davanagere; S. Natarajan; F. Colacino
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 167 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0363-907X
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β¦ Synopsis
In this paper a feasibility study of steam-jet refrigeration is conducted. First and second law analyses as well as the economics of a steam-jet refrigeration system are presented. Thermodynamic parameters investigated include the coefficient of performance (COP), refrigerating effect, condenser heat rejection, motive steam requirements, second law efficiency, and system irreversibility. Economic parameters investigated include equipment costs, space needs, power requirements, and installed and operational costs.
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A prototype refrigerator using a demagnetization cycle has been designed and built to operate continuously, pumping heat from temperatures as low as 2. 10 K to a heat sink at 4 K. The device has pumped 0.2 War 2. 10 K and 0.5 War 2.75 K. Criteria have been developed for selecting magnetic refrigeran