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Development of a natural draft solar fan for ventilation of greenhouses in hot climates.

Author(s) : FATH H. E. S.

Type of article: Article

Summary

The paper presents the description and the performance curves of a natural draft solar fan that suits the ventilation requirements of greenhouses in hot climates. The developed solar fan utilizes the abundant sun energy (fan heating load) to induce upward air flow due to buoyancy forces and chimney thermal effect. The ventilated air is extracted into the greenhouse from outside through a wet pad, thus producing air cooling by means of evaporation. A back-up passive system is used for overnight and cloudy days. Different greenhouses, fan configurations and fan performance theoretical analysis are presented.

Details

  • Original title: Development of a natural draft solar fan for ventilation of greenhouses in hot climates.
  • Record ID : 1995-1112
  • Languages: English
  • Source: Int. J. sol. Energy - vol. 13 - n. 4
  • Publication date: 1993

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