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LIQUID PUMPING SYSTEMS FOR REFRIGERANT RECIRCULATION.

Author(s) : COLE R. A.

Summary

THE EARLIEST SYSTEM WAS THE FLOODED HEAT EXCHANGER UTILIZING THE THERMOSIPHON PRINCIPLE WITH A LIQUID SUPPLY TANK CALLED A SURGE DRUM. THIS LED TO THE DEVELOPMENT OF A NUMBER OF VARIATIONS OF LIQUID PUMPING SYSTEMS POWERED BY REFRIGERANT GAS OR SYSTEM INTERNAL PRESSURE. SYSTEMS WERE APPLIED UTILIZING A NUMBEROF DIFFERENT TYPES OF MECHANICAL PUMPS. RECENT DEVELOPMENTS HAVE BROUGHT THE STATE OF RELIABILITY OF SUCH PUMPS TO A HIGH LEVEL, RESULTING IN SYSTEMS THAT REMAIN LEAK FREE. THE DIFFICULTIES, HOWEVER, IN APPLYING PUMPS TO THE PUMPING OF VOLATILE FLUIDS AT THEIR BUBBLE POINTS ARE MANY, AND GREAT CARE MUST BE TAKEN IN THE DESIGN OF THE PIPING NETWORK TO ENSURE THAT THE EXPECTED PERFORMANCE WILL RESULT. BRIEF DESCRIPTIONS OF THE VARIOUS TYPES OF SYSTEMS, SOME APPLICATION REQUIREMENTS, COMPARATIVE ECONOMICS, AND A COMPARISON CASE STUDY ARE INCLUDED IN THE PAPER.

Details

  • Original title: LIQUID PUMPING SYSTEMS FOR REFRIGERANT RECIRCULATION.
  • Record ID : 1991-2124
  • Languages: English
  • Publication date: 1990
  • Source: Source: ASHRAE Trans.
    vol. 96; n. 1; 1316-1325; 10 fig.; 3 tabl.; 4 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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