Results 261 to 270 of about 27,429 (307)

Wind loads on film plastic greenhouses

Journal of Wind Engineering and Industrial Aerodynamics, 1983
Abstract Full-scale measurements of the surface pressures on film plastic clad greenhouses have been made under natural wind conditions. The structures, which are of curved arch construction, are representative of commercial greenhouses in the United Kingdom and include single and multi-span buildings.
R.P. Hoxey, G.M. Richardson
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Quantifying greenhouse gas emissions mitigation potential in China's agricultural plastic greenhouses

Science of The Total Environment
To promote sustainable intensification and provide guidance for decisionmakers, we must understand the potential for mitigating greenhouse gas emissions in greenhouse cultivation. Therefore, this study aimed to evaluate the greenhouse gas emission mitigation potential of agricultural plastic greenhouses in China using a combination of life cycle ...
Xiaoyu, Liu, Liangjie, Xin, Xiubin, Li
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Research report on plastic greenhouses

2019
Objectives of this study are to develop improved construction methods for plastic greenhouses and to study plant growth rate and yield of vegetables when grown in glass vs plastic greenhouses.
Massey, P.H., McNeil, Marshall, Gray, R.W.   +2 more
openaire   +1 more source

Climate management for plastic greenhouses

1992
Compte rendu de débats sur la gestion du climat sous serres plastiques : lumière, luminosité, hygrométrie, température.
Feuilloley, P., Gratraud, J., Printz, P.
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WATER VAPOUR TRANSFERS AND DEHUMIDIFICATION IN A INFLATABLE PLASTIC GREENHOUSE

Acta Horticulturae, 1989
International ...
Boulard, Thierry, Baille, Alain, Lagier, Jacques, Mermier, M.   +3 more
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Natural ventilation of plastics tunnel greenhouses in the Mediterranean

1994
The use of plastics greenhouses is developing rapidly in the south of France. The local climate gives rise to a number of problems and particularly that of heating up during the summer. Good ventilation helps in the air circulation which is essential for the plants and reduces the wide temperature variations thereby increasing the length of time in the
Feuilloley, P., Mekikdjian, C., Lagier, Jacques   +2 more
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A water-curtain heating system for plastic greenhouses

Journal of Agricultural Engineering Research, 1992
A possible alternative method of using power station waste heat has been investigated using a small-scale physical model and its performance compared with that predicted from thermodynamic principles. It employs a variation of the water-curtain surface-heating method first investigated experimentally by Canham in 1957.
J.F. Meneses, A.E. Canham
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Channelled plastic for greenhouse and skylight use

Solar Energy, 1981
Abstract Transparent, channelled, plastic sheets lend themselves to solar energy applications in which an interior space needs light but limited amounts of heat. We discuss the transmission of solar energy through such sheets with and without circulating water or water with dissolved ions.
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The Radiative Effectiveness of Plastic Films for Greenhouses

Journal of Applied Meteorology, 1963
Abstract The spectral transmission properties of glass, polyester film, polyvinyl-fluoride film, polystyrene film and polyethylene film are presented, based on laboratory determined spectrograms and field measurements of atmospheric infrared radiation.
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Responses of cucumbers to mulching in an unheated plastic greenhouse

The Journal of Horticultural Science and Biotechnology, 2005
SummaryPlastic greenhouses have become widespread in recent decades, predominantly as low–cost structures. Those using plastic houses often adopt techniques developed for more sophisticated glasshouses without prior studies to see if it is necessary to adapt them.
P. Lorenzo, M.C. SÁNchez-Guerrero, E. Medrano, T. Soriano, N. Castilla   +4 more
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