Experimental Evaluation of the Effect of Mecanical Ventilation on Greenhouse Air Temperature

Authors

  • Ranjan Shrivastava Principal Scientist, Div. of Agril. Engg., IARI, New Delhi- 110012, India Author
  • Pitam Chandra Principal Scientist & Project Coordinator (PFDC), Div. of Agril. Engg., IARI, New Delhi- 110012, India Author

DOI:

https://doi.org/10.52151/jae2002394.1016

Abstract

A study was undertaken to evaluate the effect of mechanical ventilation on greenhouse air temperature. The study indicated that the greenhouse air temperature rise above the ambient was 18.2°C when the ambient air temperature was 42°C and insolation 900 W/m2 . The ventilation rate in the range of 2-3 air change per minute was found to be suitable for a clear polyethylene covered greenhouse. The jute cloth cover over the polyethylene glazing lowered the ventilation rate requirement to 1.4 m/s (1.34 air change per minute).

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References

Aldrich R. ; Bartok JW.1990. Greenhouse Engineering. Reprint, Northeast Regional Agricultural Engineering Service, 152 Riley Robb Hall, Conel University, New York, pp: 203.

ASAE Standard. 1984, Heating, Ventilation and Cooling Greenhouse, ASAE Engineering Practice: ASAE EP406, pp: 397- 400.

Chandra P.; Singh JK. 1989. Some Results of Evaporative Cooling a Plastic Greenhouse, Journal of Agri!. Engg., 26(3): 274- 281.

Mastalerz JW. 1977. Greenhouse Environment, John Wiley & Sons, New York.

Shrivastava R. 1995. Studies on Greenhouse Cooling Systems, Unpublished Ph.D. Thesis, Indian Agricultural Research Institute, New Delhi.

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Published

2002-12-31

Issue

Vol. 39 No. 4 (2002)

Section

Regular Issue

How to Cite

Ranjan Shrivastava, & Pitam Chandra. (2002). Experimental Evaluation of the Effect of Mecanical Ventilation on Greenhouse Air Temperature. Journal of Agricultural Engineering (India), 39(4), 10-16. https://doi.org/10.52151/jae2002394.1016