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Microchannel components for absorption space-conditioning systems.

Author(s) : GARIMELLA S.

Summary

The paper presents the development of a miniaturization technology for heat and mass exchangers used in absorption heat pumps. Short lengths of microchannel tubes are placed in a square array, with several such arrays being stacked vertically. Successive tube arrays are oriented in a transverse orientation perpendicular to the tubes in adjacent levels. In an absorber application, the liquid solution flows in the falling-film mode countercurrent to the coolant through the tube rows. Vapour flows upward through the lattice formed by the tube banks, countercurrent to the falling solution. A preliminary model of the absorption process for ammonia-water demonstrates the potential for extremely small absorption system components. The technology is suitable for almost all absorption heat pump components.

Details

  • Original title: Microchannel components for absorption space-conditioning systems.
  • Record ID : 2001-0764
  • Languages: English
  • Source: ASHRAE Transactions. 2000 Winter Meeting, Dallas, Texas + CD-ROM.
  • Publication date: 2000
  • Document available for consultation in the library of the IIR headquarters only.

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