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Optimized Design of Geothermal Water Heating System in Greenhouse

Ji Zhang

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Abstract

Geothermal water is used as the heat source for agricultural greenhouse where the floor radiant heating technology is applied,which can make full use of geothermal resource and decrease the temperature of geothermal tail water.The flow process of geothermal water heating system in greenhouse is introduced,and the heat load of the greenhouse heating system is calculated.Using annual cost as economic indicator,the design parameters of the heating system is optimally designed based on an engineering example.

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What this paper is about

Geothermal water is used as the heat source for agricultural greenhouse where the floor radiant heating technology is applied,which can make full use of geothermal resource and decrease the temperature of geothermal tail water.The flow process of geothermal water heating system in greenhouse is introduced,and the heat load of the greenhouse heating system is calculated.Using annual cost as economic indicator,the design parameters of the heating system is optimally designed based on an engineering example.

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Available abstract

Geothermal water is used as the heat source for agricultural greenhouse where the floor radiant heating technology is applied,which can make full use of geothermal resource and decrease the temperature of geothermal tail water.The flow process of geothermal water heating system in greenhouse is introduced,and the heat load of the greenhouse heating system is calculated.Using annual cost as economic indicator,the design parameters of the heating system is optimally designed based on an engineering example.

Key concepts: Greenhouse, Geothermal heating, Geothermal gradient, Environmental science, Heating system, Geothermal energy, Environmental engineering, Renewable heat

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