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Implementing the Cascade Use of Geothermal Energy in Agriculture and Assessment of Usage with MCDM Tool
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 1st Geoscience & Engineering in Energy Transition Conference, Nov 2020, Volume 2020, p.1 - 5
Abstract
Based on the outdoor air temperatures at the location of the Lunjovec-Kutnjak geothermal field, the utilization of geothermal energy for heating the greenhouses was dimensioned through two thermo-technical systems. The first system involved the direct use of geothermal energy, and the second system involved the direct use of geothermal energy and the use of heat pumps after direct use. Such a cascading hybrid system through direct use and heat pumps represent the possibility of exploiting a larger temperature range and generating greater revenues. After sizing the system, MCDM analysis was performed according to the methodology presented in ( Ilak et al., 2018 ; Raos et al., 2019 ), together with the proposed weight parameters determined for agriculture. The results of the analysis showed a higher final grade of the cascade hybrid system for agricultural purposes where the parameters of installed capacity and levelized cost of heating (LCOH) had the greatest impact and geological parameters did not have a significant impact since they are the same in both proposed systems.