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Particulate pollution effects on the performance of greenhouses

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  • El-Shobokshy, Mohammad S.
  • Hussein, Fahmy M.

Abstract

Two greenhouse models were constructed to investigate the characteristic performance under variable dust pollution levels. The cover of the first model—a reference—was kept clean, while dust particles were allowed to uniformly deposit on the cover of the second. The physical parameters of the dust particles, such as the mass medium and surface mean diameters and geometric standard deviation, were determined. The solar intensities outside and inside each model, as well as the greenhouse room temperatures, were continuously measured by means of a multi-channel recorder. The amount of solar energy received inside the greenhouse decreased considerably as the dust deposition density increased. The room temperature also decreased. The results show the relationship between dust deposition density and the transmittance of energy. A mathematical model has been used to predict fairly accurately the greenhouse room temperature. This model may also be used to predict the performance of greenhouses with dusty covers if a simple correlation between dust deposition density and energy transmittance is developed as explained in the paper.

Suggested Citation

  • El-Shobokshy, Mohammad S. & Hussein, Fahmy M., 1993. "Particulate pollution effects on the performance of greenhouses," Renewable Energy, Elsevier, vol. 3(6), pages 655-660.
    • Handle: RePEc:eee:renene:v:3:y:1993:i:6:p:655-660
    DOI: 10.1016/0960-1481(93)90072-O
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    References listed on IDEAS

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    1. Lawrence, S.A. & Tiwari, G.N., 1991. "Performance of a greenhouse cum solar still for the climatic condition of Port Moresby," Renewable Energy, Elsevier, vol. 1(2), pages 249-255.
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