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BLOWBY FLOW RATES TO ASSESS ENERGY LOSS IN CASCADED REFRIGERATION-HEAT PUMP SYSTEMS.

Author(s) : GUPTA V. K.

Type of article: Article

Summary

AVAILABLE EQUATION TO DETERMINE THE MASS FLOWRATE OF IDEAL GAS IN AN ADIABATIC FLOW THROUGH A DUCT OF CONSTANT CROSS-SECTION IS MODIFIED AFTER INTRODUCING ISENTROPIC EXPONENTS CORRESPONDING TO A REAL GAS. MOST WIDELY USED AND COMPARATIVELY CHEAPER REFRIGERANTS R12, R22 AND R717 ARESELECTED FOR THE HEAT PUMP SYSTEM AND R13 FOR REFRIGERATION SUB-SYSTEM. THE RATES ARE COMPARED WITH IDEAL GAS RATES OVER A VARIETY OF OPERATING CONDITIONS AND A CONSIDERABLE LOSS OF ENERGY IS FOUND WITH BLOWBY RATES. THIS LOSS CAN BE AVERTED, IF A MICROPROCESSOR IS USED TO MONITOR INSTANTANEOUS REFRIGERANT MASS AT EVAPORATOR INLET.

Details

  • Original title: BLOWBY FLOW RATES TO ASSESS ENERGY LOSS IN CASCADED REFRIGERATION-HEAT PUMP SYSTEMS.
  • Record ID : 1990-0794
  • Languages: English
  • Source: Heat Recov. Syst. CHP - vol. 9 - n. 3
  • Publication date: 1989

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