Geothermal greenhouse design

Abstract

The design of a geothermal greenhouse requires a knowledge of different aspects of geothermal utilization. Most important of these are the geothermal field, water transmission, structure design, heating system and disposal of waste water. The transmission-distribution systems from the source to the greenhouse are studied and the geothermal greenhouse layout described. Furthermore, the main parameters which influence the design are mentioned, emphasizing indoor conditions. During the design description the heating installations are analysed more than the other components because the heating system is the most important factor in the geothermal greenhouse layout and constitutes the main difference from greenhouses using conventional fuels or electricity. Methods of waste water disposal are discussed. Design of a geothermal greenhouse in the Alexandroupolis area in North Greece is described, with emphasise on the heating system.