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MATHEMATICAL MODELLING OF A STEAM-INJECTED BUBBLE PUMP.

Author(s) : HASSOON H. M., FITT P. W.

Summary

THE ABSENCE OF AN INEXPENSIVE AND RELIABLE SOLUTION PUMP FOR SMALL ABSORPTION HEAT PUMPS, USING THE WATER/AMMONIA COMBINATION, HAS BEEN A SERIOUS HINDRANCE TO THEIR DEVELOPMENT AND COMMERCIALIZATION. ONE SUCCESSFUL DESIGN INCORPORATES A SELF-POWERED RECIPROCATING MECHANISM, WHICH DELIVERS AN INTERMITTENT FLOW OF ABSORBENT, AND A CIRCULATING BUBBLE ABSORBER TO ACHIEVE CONTINUOUS ABSORPTION. THE EXACT MANNER IN WHICH THIS CIRCULATING BUBBLE ABSORBER FUNCTIONS IS NOT FULLY UNDERSTOOD. A MATHEMATICAL MODEL HAS BEEN DEVELOPED TO DESCRIBE THE TWO-PHASE FLOW ALONG THE LIFT TUBE OF A BUBBLE PUMP, CONTAINING WATER AND STEAM. THIS CONSTITUTES THE STARTING POINT FOR THE DEVELOPMENT OF AN EXTENDED MODEL SUITABLE FOR USE OF WATER AND AMMONIA, LIKE IN REAL ABSORPTION MACHINES.

Details

  • Original title: MATHEMATICAL MODELLING OF A STEAM-INJECTED BUBBLE PUMP.
  • Record ID : 1992-1388
  • Languages: English
  • Publication date: 1991
  • Source: Source: ASHRAE Trans.
    vol. 97; n. 1; 163-171; 8 fig.; 29 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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