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ENHANCEMENT OF RADIATION COOLING BY MEANS OF REFLECTORS.

Author(s) : MARREIROS M. S., ROSA R.

Type of article: Article

Summary

SHOWS THAT RADIATION COOLING TO A CLEAR SKY CAN BE SUBSTANTIALLY ENHANCED BY COUPLING A REFLECTOR TO THE RADIATOR. THE CLASS OF REFLECTORS CONSIDERED IN THIS STUDY IS THE CPC (COMPOUND PARABOLIC CONCENTRATOR) TRUNCATED ON THE SIDE OF THE EXIT APERTURE. ESTIMATES THAT, UNDER REAL CIRCUMSTANCES, THE COOLING POWER PER UNIT AREA OF ENTRANCE APERTURE CAN BE NEARLY DOUBLED, WITH THE HELP OF A TRUNCATED CPC TROUGH REFLECTOR, AND THE EQUILIBRIUM LIMIT TEMPERATURE CAN BE BROUGHT SOME 24 K FURTHER DOWN. A TRUNCATED CPC DISH REFLECTOR CAN STILL IMPROVE ON THE EQUILIBRIUM TEMPERATURE BUT AT THE COST OF SOME LOSS OF COOLING POWER. THE DEVICE CAN STILL OPERATE SATISFACTORILY IN THE DAY TIME. (INT. BUILD. SERV. ABSTR., GB., 18, N3, 1983, 11, 83-00799.

Details

  • Original title: ENHANCEMENT OF RADIATION COOLING BY MEANS OF REFLECTORS.
  • Record ID : 1984-0352
  • Languages: English
  • Subject: General information
  • Publication date: 1983
  • Source: Source: Sol. Energy
    vol. 30; n. 5; 463-471; 11 fig.; 1 tabl.; 5 ref.

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