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Evaporation heat transfer performance of nozzle-sprayed ammonia on a horizontal tube.

Author(s) : ZENG X., CHYU M. C., AYUB Z. H.

Summary

A spray evaporation experiment was conducted using commercial nozzles distributing liquid ammonia on a horizontal, plain stainless steel tube with a 3/4-inch diameter. The average local spray flux rate was measured, and varied from 0.0138 to 0.0777 kg/m.s. The saturation temperature was tested from -23.3 to 10 deg C, and the heat flux was tested from 8 to 60 kilowatts/m2. The effects of heat flux, saturation temperature, spray flow rate, and nozzle height were investigated. Both standard-angle and wide-angle commercial nozzles were tested. The results are compared with pool boiling data obtained in the present experiment and previously published pool boiling and spray evaporation results.

Details

  • Original title: Evaporation heat transfer performance of nozzle-sprayed ammonia on a horizontal tube.
  • Record ID : 1996-1524
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1995/01
  • Document available for consultation in the library of the IIR headquarters only.

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