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OPTIMUM DESIGN OF MULTISTAGE CASCADED REFRIGERATION-HEAT PUMP SYSTEM.

Author(s) : GUPTA V. K.

Type of article: Article

Summary

A MULTISTAGE CASCADED REFRIGERATION-HEAT PUMP SYSTEM WHICH EMPLOYS TWO-STAGE COMPRESSION ON HIGH TEMPERATURE SIDE AND SINGLE-STAGE COMPRESSION ON LOW TEMPERATURE SIDE IS NUMERICALLY OPTIMIZED. DESIGN QUANTITIES PERTAINING TO THE OPTIMUM PERFORMANCE AND MINIMUM RUNNING COST OF THESYSTEM (INTER-STAGE AND CONDENSING TEMPERATURES, ECONOMIC WATER RATES, POWER REQUIREMENTS) ARE PRESENTED. MOST WIDELY USED AND COMPARATIVELY CHEAPER R22 IS SELECTED FOR HEAT PUMP SUBSYSTEM AND R13 FOR REFRIGERATION SUBSYSTEM. THE EVAPORATOR AND AMBIENT TEMPERATURES RANGES ARE 213 TO 243 K (-60 TO -30 DEG C) AND 283 TO 333 K (10 TO 60 DEG C), RESPECTIVELY. OVERALL COP OF THE SYSTEM ARE FOUND TO BE 2.8 TO 7.4, IF THE SYSTEM OPERATES WITHIN THE CONSIDERED RANGES OF THE OPERATING PARAMETERS.

Details

  • Original title: OPTIMUM DESIGN OF MULTISTAGE CASCADED REFRIGERATION-HEAT PUMP SYSTEM.
  • Record ID : 1987-1968
  • Languages: English
  • Source: J. Heat Recov. Syst. - vol. 6 - n. 3
  • Publication date: 1986

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