Evaluation of environmental factors and equipment configuration on efficiency of a solar soil water collector

Hayder A. Abdel Rahman, Badr A. Al Yafie, Mattheus F A Goosen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The aim of this paper is to assess the effects of environmental factors and equipment configuration on the recovery of soil water using a solar collector. The recovery of water from soil is difficult, since the energy requirements are very high. Solar energy provides a solution to this problem, especially in countries with high solar radiation. In the current study, it was found that the amount of water collected depended largely upon the air temperature and soil water content. In winter, 0.465 L m -2 day -1 were collected compared to 1.163 L m -2 day -1 in summer. The initial soil water content was equally important; dry soil tended to yield less condensate than wet soil. Saturated soils yielded 0.814 L m-2 day-1 in winter compared to 1.395 L m-2 day-1 in summer. The type of soil (i.e. gravel, silt and loamy sand) affected the release of water from the surface, as a result of differences in soil water release characteristics. The air space between the soil surface and the condensate collecting surface also had an effect on condensate collection; the larger this distance, the greater the amount of condensate that was collected. The configuration of the condensate collecting surface also had an effect on the amount of condensate obtained; the shallower the slope of the surface, the greater the amount of condensate that was collected. The collector was most effective in summer, on cloudless days, with wet poorly- drained silt soils.

Original languageEnglish
Pages (from-to)260-273
Number of pages14
JournalInternational Journal of Environmental Technology and Management
Volume10
Issue number3-4
DOIs
Publication statusPublished - Mar 2009

Fingerprint

condensate
environmental factor
soil water
Soils
Water
soil
silt
summer
water content
Silt
Water content
loamy sand
winter
evaluation
water
solar radiation
gravel
Recovery
soil surface
air temperature

Keywords

  • Efficiency
  • Equipment configuration
  • Soil water
  • Solar
  • Water collection

ASJC Scopus subject areas

  • Management, Monitoring, Policy and Law
  • Environmental Engineering

Cite this

Evaluation of environmental factors and equipment configuration on efficiency of a solar soil water collector. / Abdel Rahman, Hayder A.; Al Yafie, Badr A.; Goosen, Mattheus F A.

In: International Journal of Environmental Technology and Management, Vol. 10, No. 3-4, 03.2009, p. 260-273.

Research output: Contribution to journalArticle

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