Study of Flow Pattern and Temperature Distribution of Air Inside Cultivable Greenhouse

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องอาจ วิเศษสุข


The objective of this research is to calculate flow pattern and temperature distribution inside different greenhouse geometries comprising of box, curve, triangle, different curve, and different triangle greenhouses. Three categories of vent design (width = 0.5m) are installed at roof, side, and both roof and side of the greenhouse. The rang of heat flux from the floor considered in this research is between 30-100 W/m2 .Velocity and temperature inside the greenhouse are calculate by computational fluid dynamics technique in two dimensionally. The simulation results show that mean temperature and ventilation rate are depended on the heat flux. A vent on both roof and side performs the maximized ventilation compared with other cases. The box, curve, and triangle greenhouses have better ventilation rate than different curve and different triangle greenhouses.


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วิเศษสุข อ. (2014). Study of Flow Pattern and Temperature Distribution of Air Inside Cultivable Greenhouse. Journal of Energy and Environment Technology of Graduate School Siam Technology College, 1(2), 35–45. Retrieved from
Research Article


[1] Montero, J.I., Anton, A., Kamaruddin, R.K., and Bailey, B.J., 2001, “Analysis of Thermally Driven Ventilation in Tunnel Greenhouses using Small Scale Models”, Journal of Agricultural Engineering Research, Vol.79, No.2, pp.213-222.

[2] Wang, S., Boulard, T., and Haxaire, R., 1999, “Air Speed Profiles in A Naturally Ventilated Greenhouse with A Tomato Crop”, Agricultural and Forest Meteorology, Vol.96, pp.181-188.

[3] Perez, P.J., Baeza, E., Montero, J.I., and Bailey, B.J., 2004, “Natural Ventilation of Parral Greenhouses”, Biosystems Engineering, Vol.87, No.3, pp.355-366.

[4] Sase, S., Reiss, E., Both, A.J., and Roberts, W.J., 2002, Developing a Natural Ventilation Model for Open-Roof Greenhouse, Center for Controlled Environment Agriculture, pp. 1-9.

[5] Sbita, L., Boulard, T., and Mermier, M., 1999, “Natural Ventilation Performance of A Greenhouse Tunnel in South Tunisia”, Agricultural Engineering, Vol.76, pp.109-118.

[6] Kakac, S., and Yener, Y., 1995, Convective Heat Transfer, Second Edition, Boca Raton Ann Arbor, London, pp.23-46.

[7] ทนงเกียรติ เกียรติศิริโรจน์, 2531, อนุกรมพลังงานออกแบบและการใช้พลังงานอย่างมีประสิทธิภาพ เล่มที่ 1 การแผ่รังสีและตัวรับรังสี, สถาบันเทคโนโลยีพระจอมเกล้าธนบุรี, กรุงเทพฯ, หน้า 1-25.

[8] จงจิตร์ หิรัญลาภ, 2541, กระบวนการพลังงานแสงอาทิตย์ในรูปความร้อน, มหาวิทยาลัยเทคโนโลยี
พระจอมเกล้าธนบุรี, กรุงเทพฯ, หน้า 1-26.

[9] Duffie, J.A.and Beckman,W.A., 1991, “Solar Engineering of Thermal Processes”, John Wiley & Sons, New York, pp. 1-146.

[10] Holman, J.P, 2001, “Heat Transfer”, McGraw-Hill, New York, pp. 225-231.