ISHS Acta Horticulturae 807: International Symposium on Strategies Towards Sustainability of Protected Cultivation in Mild Winter Climate
AQUIFER THERMAL ENERGY STORAGE APPLICATION IN GREENHOUSE CLIMATIZATION |
| Authors: | B. Turgut, H.Y. Dasgan, K. Abak, H. Paksoy, H. Evliya, S. Bozdag |
| Keywords: | cooling, heating, tomato, plant growth, yield |
| Abstract:
A research project aimed to determine heating and cooling potential of the aquifer thermal energy storage (ATES) system in the Mediterranean climatic zone greenhouses was carried out in Cukurova University, Adana during 2005-2006. For these purposes, two plastic greenhouses, each having an area of 360 m2, have been used. One of them was heated and cooled by ATES technique. In the second one conventional heating and cooling systems has been used. Outside and greenhouses inside temperatures as well as ground water and exchanger water temperatures were recorded during whole experimental period. Tomato crop was grown in both greenhouses and plant growth and fruit yield were measured. Energy costs of the greenhouses (fuel oil for conventional heated and electricity for ATES) were also calculated. Consequently, these two systems were technically and economically compared. Collected data showed that ATES system have a good potential for climatization, both for heating and cooling, of the greenhouses in Mediterranean climatic zone. Between 20 October and 10 April, inside temperature of the ATES system heated greenhouse was never beloved critical level (12°C) and thanks to this performance never uses any fuel oil. On the other hand temperature fluctuations in ATES greenhouse were less than the conventional heated one. Energy cost saving with ATES for heating was about 70% in comparison with the conventional heated (with fuel-oil) greenhouse. Yield of tomato trial approximately 20% more yield obtained in the ATES system heated greenhouse than the conventional climatizated one. | |
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