Techno-Economic Analysis of Greenhouse Heating with Geothermal Energy: A Case Study for Kozakli-Nevsehir Region of Turkey


Öztürk H. H., Türker M., Berk A.

2nd International Conference on Research of Agriculture and Food Technologies, Adana, Türkiye, 6 - 07 Ekim 2022, ss.1-10

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Adana
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1-10
  • Çukurova Üniversitesi Adresli: Evet

Özet

Most important issues in greenhouse cultivation are to reduce costs in production, to minimize environmental impacts, to ensure sustainability in obtaining energy, and to reduce external dependency in energy. For these reasons, it is important to popularize renewable technologies in order to use renewable energy potential in our country more. Kozaklı geothermal area is the most important region in terms of geothermal energy potential in Nevşehir province. There are 30 geothermal wells in Kozaklı geothermal area. In these wells, fluid temperature varies between 30-105 and flow rates between 1.5-95 l/s. Current main usage area of geothermal resources in Kozaklı region is geothermal greenhouse cultivation.

            In this study, it is aimed to increase efficient use of geothermal resources in Nevşehir Kozaklı region for greenhouse heating. For this purpose, heating loads were determined by taking into account example of a hydroponic tomato production plastic greenhouse with gothic style and butterfly shaped roof ventilated, with polycarbonate (PC) side edges and normal polyethylene (PE) plastic cover on side and roof. If indoor air temperature of greenhouse is 12 ℃, the highest (1566 kW) and average (1502 kW) heat loads for greenhouse occur in February. The lowest, highest and average heat loads for winter season (December-January-February) were determined as 1340 kW, 1445 kW and 1391 kW, respectively. If indoor temperature is 15 ℃, the lowest, highest and average heat loads for winter season (December-January-February) are determined as 151 W/m2, 163 W/m2 and 157 W/m2, respectively. In order to keep the greenhouse indoor temperature constant at 15 ⁰C, minimum, maximum and average heat loads for greenhouse in an area of 10000 m2 (December-January-February) were determined as 1340 kW, 1445 kW and 1391 kW, respectively.