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Thermal performance of solar-distillation integrated greenhouses.

Number: pap. n. 1.2

Author(s) : JANAJREH I., FATH H. E. S., RAZA S. S.

Summary

Greenhouse (GH) has been demonstrated as a profitable technology for food production with low demand of irrigation water. In this work, a numerical model is developed to study the micro-climatic environmental conditions inside a greenhouse distillation system for optimize operation. A solar basin containing saline water is used for the desalinating of the required amount of greenhouse irrigating water. The system transient performance (temperatures, flow velocities, relative humidity) is presented and improvement factors for the system performance are suggested. The result shows that velocity and trans-evaporation has more pronounced effect on the relative humidity than the temperature variation. In particular, as temperature increase by 8°C the relative humidity decreases with few percentiles (~2%). When velocity varies between 0.2-0.7 m/s, and within the diurnal operation of the GH, an increase up to 5 points in the humidity is observed. Finally, when the transevaporation increased from 0.2 to 1.2 g/m3 the relative humidity observe a drastic jump of over 15 points.

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Pages: 12 p.

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Details

  • Original title: Thermal performance of solar-distillation integrated greenhouses.
  • Record ID : 30006030
  • Languages: English
  • Source: 4th Jordanian IIR International Conference on Refrigeration and Air Conditioning. Proceedings: Amman, Jordan, September 10-12, 2012.
  • Publication date: 2012/09/10

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