Browse > Article
http://dx.doi.org/10.12791/KSBEC.2013.22.3.270

Estimation of Heat Insulation and Light Transmission Performance According to Covering Methods of Plastic Greenhouses  

Lee, Hyun-Woo (Department of Agricultural Eng., Kyungpook National Univ.)
Kim, Young-Shik (Sangmyung University)
Sim, Sang-Youn (Gyeonggi Province Agricultural Research & Extension Services)
Lee, Jong-Won (Institute of Agricultural Science & Technology, Kyungpook National Univ.)
Diop, Souleymane (Department of Agricultural Eng., Kyungpook National Univ.)
Publication Information
Journal of Bio-Environment Control / v.22, no.3, 2013 , pp. 270-278 More about this Journal
Abstract
The objective of the present study is to provide data needed to decide covering method to be able to increase the thermal insulation and light transmittance efficiency of commercial greenhouse. The thermal insulation effect, PPF transmittance and quantity of condensation water were estimated in experimental tomato greenhouses covered with three types of coverings of single layer, air inflated and conventional double layers covering. The overall heat flow of air inflated double layers greenhouse was similar to that of conventional double layers greenhouse, but the temperature between covering material and thermal screen in air inflated double layers greenhouse was lower than that in conventional double layers greenhouse at the same outside temperature condition due to air leakage through the gap of roof vent. The overall heat transfer coefficients acquired by experiment that was performed in single layer and conventional double layers greenhouses were close to those obtained from model experiment. Even though the PPF transmittance of air inflated double layers greenhouse was lower than that of single layer greenhouse, which was greater than that of conventional double layers greenhouse. The quantity of condensation water on covering surface of single layer greenhouse was greater than that of air inflated double layers greenhouse due to lower covering surface temperature.
Keywords
condensation; hot air heating; overall heat transfer coefficient; thermal screen; transmittance of PPF;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Bartzanas, T., M. Tchamitchian, and C. Kittas. 2005. Influence of the heating method on greenhouse micloclimate and energy consumption. Biosyst. Eng. 91:487-499.   DOI
2 Delwiche, S.R. and D.H. Willits. 1984. The effect of condensation on heat transfer through polyethylene films. Transactions of ASAE 27:1476-1482.   DOI
3 Diop, S., J.W. Lee, W.H. Na, and H.W. Lee. 2012. Overall heat transfer coefficient measurement of covering materials with thermal screens for greenhouse using the hot box method. Journal of the Korean Society of Agricultural Engineers 54(5):1-7.
4 Hanan, J.J. 1998. Greenhouses: advanced technology for protected horticulture. Boca Raton, Flodia: CRC.
5 Kim, Y.B., S.Y. Lee, and B.R. Jeong. 2009. Analysis of the insulation effectiveness of the thermal insulator by the installation methods. Journal of Bio-Environmental Control 18(4):332-340 (in Korean).
6 Iwasaki, Y., C. Yoshida, and Y. Shishido. 2011. Effect of changing the environmental factors in a greenhouse covered with double-layered air inflated plastic film on the growth and fruit of cucumber grown under semi-forcing culture. Hort. Res. 10(1):49-54 (in Japanese).
7 Japan Greenhouse Horticulture Association (JGHA), 1994. Greenhouse horticulture handbook. Tokyo: Japan Greenhouse Horticulture Association (in Japanese).
8 Kim, M.G., S.W. Nam, W.M. Suh, Y.C. Yoon, S.G. Lee, and H.W. Lee. 2000. Agricultural structural engineering. Seoul: Hyangmunsa (in Korean).
9 Lee, H.W., S.Y. Sim, H.S. Nam, S.W. Nam, and Y.S. Kim. 2009a. Fundamental experiments for design of air inflating apparatus of air-inflated double-layer plastic greenhouse. Journal of the Korean Society of Agricultural Engineers 51(5):19-24 (in Korean).   DOI
10 Lee, H.W., S.Y. Sim, H.S. Nam, S.W. Nam, and Y.S. Kim. 2009b. Development of design technology of korean style air-inflated double-layer plastic greenhouse. Journal of Bio- Environment Control 18(3):185-191 (in Korean).
11 Lee, H.W., S.Y. Sim, and Y.S. Kim. 2010. Characteristics of PPF transmittance and heat flow by double covering methods of plastic film in tomato greenhouse. Journal of the Korean Society of Agricultural Engineers 52(5):11-17 (in Korean).
12 Lee, H.W., S.Y. Sim, and Y.S. Kim. 2012. Characteristics of temperature, humidity and PPF distribution by covering method and environmental control in double covering tomato greenhouse. Journal of Bio-Environment Control 21(1):1-11 (in Korean).
13 Pollet, I.V. and J.G. Pieters. 1999. Condensation and radiation transmittance of greenhouse cladding materials: Part1, Laboratory measuring unit and performance. J. Agric. Eng. Res. 74:369-377.   DOI
14 Rural Development Administration (RDA). 2008. Energy saving technology for greenhouse. RDA (in Korean).
15 Papadakis, G., D. Briassoulis, G.S. Mugnozza, G. Vox, P. Feuilloley, and J.A. Stoffers. 2000. Radiometric and thermal properties of, and testing methods for, greenhouse covering materials. J. Agric. Eng. Res. 77(1):7-38.   DOI
16 Pieters, J.D., J.M. Deltour, and M.J. Debruyckere. 1997. Light transmission through condensation on glass and polyethylene. Agricultural and Forest Meteorology 85:51-62.   DOI
17 Rural Development Administration (RDA). 2010. Drawings and specifications of horticultural and herbal facilities to prevent disasters(Notification No.2010-128 of the Ministry of Food, Agriculture, Forestry, and Fisheries. RDA (in Korean).
18 Seginer, I. and D. Kantz. 1986. In-situ determination of transfer coefficients for heat and water vapour in a small greenhouse. J. Agr. Eng. Res. 35:39-54.   DOI