Novel Methods of Heating and Cooling Greenhouses: A Feasibility Study

Hamer, P.J.C.; Bailey, B.J.; Ford, M.G.; Virk, Gurdane

doi:10.17660/actahortic.2006.719.24

Cited by 3 publications

(3 citation statements)

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“…Hamer et al (2006) compared different cooling systems to maintain the same greenhouse temperature as with natural ventilation for North West European conditions while de Zwart (2005) designed different cooling systems with a capacity to keep the greenhouse completely closed, even at maximum radiation levels. Return on investment is poor except for the direct and indirect evaporative cooling (Hamer et al, 2006;de Zwart, 2005). Anton et al (2006) compared different cooling and mechanical ventilation systems for Spanish conditions.…”

Section: Energy Efficient Coolingmentioning

confidence: 99%

Innovative Technologies for an Efficient Use of Energy

Bakker¹,

Adams²,

Boulard³

et al. 2008

Acta Hortic.

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Efficient use of energy in greenhouses has been subject of research and development for decades. The final energy efficiency, e.g. the amount of energy used per unit of product, is determined by improvements in energy conversion, reductions in energy use for environmental control and the efficiency of crop production. The new European targets on reduction of CO 2 emission have resulted in a renewed interest in innovative technologies to improve energy efficiency in greenhouses designed for North-as well as South European regions. In this paper an overview of the recent developments is presented from both the Northwest European as well as the Mediterranean perspective. The developments range from new modified covering materials, innovative and energy conservative climate control equipment and plant response based control systems, to integrated energy efficient greenhouse designs.

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Section: Energy Efficient Coolingmentioning

confidence: 99%

Innovative Technologies for an Efficient Use of Energy

Bakker¹,

Adams²,

Boulard³

et al. 2008

Acta Hortic.

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“…With the trend to more "closed greenhouses" aiming at completely controllable conditions also in the more moderate climates, energy efficient cooling/dehumidification systems are subject of model and experimental studies. Hammer et al (2006) used integrated physical and physiological models to compare different cooling systems aiming at the same greenhouse temperature as obtained with natural ventilation while de Zwart (2006), compared different cooling systems with a capacity to keep the greenhouse completely closed, even at maximum radiation levels. Return on investment of the evaluated cooling systems is poor except for the direct and indirect evaporative cooling (Hammer et al, 2006;de Zwart et al, 2004;de Zwart, 2005).…”

Section: Cooling and De-humidifyingmentioning

confidence: 99%

“…Hammer et al (2006) used integrated physical and physiological models to compare different cooling systems aiming at the same greenhouse temperature as obtained with natural ventilation while de Zwart (2006), compared different cooling systems with a capacity to keep the greenhouse completely closed, even at maximum radiation levels. Return on investment of the evaluated cooling systems is poor except for the direct and indirect evaporative cooling (Hammer et al, 2006;de Zwart et al, 2004;de Zwart, 2005). Using a water layer in a rainwater basin under the greenhouse floor as a direct evaporative cooling system turned out to be less efficient and cost effective compared to convectional methods (Campen, 2006).…”

Section: Cooling and De-humidifyingmentioning

confidence: 99%

Model Application for Energy Efficient Greenhouses in the Netherlands: Greenhouse Design, Operational Control and Decision Support Systems

Bakker¹

2006

Acta Hortic.

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The development of energy conservative greenhouse systems is the overall result of improvement of greenhouse construction, cladding materials and insulating techniques, innovative climate control equipment and implementation of physical and physiological knowledge in the operational climate control systems. The development of these systems represents an optimisation problem and the use of both physical as well as physiological information and models has shown to be a most powerful tool in dealing with this. In this paper some recent examples of relevant application of models in the design, operational control and evaluation of energy conservative greenhouse systems are presented, based on recent results and research in The Netherlands.

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