The Potential and Utilization of Unused Energy Sources for Large-Scale Horticulture Facility Applications under Korean Climatic Conditions

In Tak Hyun, Jae Ho Lee, Yeo Beom Yoon, Kwang Ho Lee and Yujin Nam
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In Tak Hyun: Department of Architectural Engineering, Hanbat National University, San 16-1, Dukmyung-Dong, Yuseong-Gu, Daejeon 305-719, Korea
Jae Ho Lee: Department of Architectural Engineering, Hanbat National University, San 16-1, Dukmyung-Dong, Yuseong-Gu, Daejeon 305-719, Korea
Yeo Beom Yoon: Department of Architectural Engineering, Hanbat National University, San 16-1, Dukmyung-Dong, Yuseong-Gu, Daejeon 305-719, Korea
Kwang Ho Lee: Department of Architectural Engineering, Hanbat National University, San 16-1, Dukmyung-Dong, Yuseong-Gu, Daejeon 305-719, Korea
Yujin Nam: Department of Architectural Engineering, Cheongju University, 298, Daesungro, Sangdang-Gu, Cheongju 360-764, Korea

Energies, 2014, vol. 7, issue 8, 1-21

Abstract: As the use of fossil fuel has increased, not only in construction, but also in agriculture due to the drastic industrial development in recent times, the problems of heating costs and global warming are getting worse. Therefore, introduction of more reliable and environmentally-friendly alternative energy sources has become urgent and the same trend is found in large-scale horticulture facilities. In this study, among many alternative energy sources, we investigated the reserves and the potential of various different unused energy sources which have infinite potential, but are nowadays wasted due to limitations in their utilization. In addition, we utilized available unused energy as a heat source for a heat pump in a large-scale horticulture facility and analyzed its feasibility through EnergyPlus simulation modeling. Accordingly, the discharge flow rate from the Fan Coil Unit (FCU) in the horticulture facility, the discharge air temperature, and the return temperature were analyzed. The performance and heat consumption of each heat source were compared with those of conventional boilers. The result showed that the power load of the heat pump was decreased and thus the heat efficiency was increased as the temperature of the heat source was increased. Among the analyzed heat sources, power plant waste heat which had the highest heat source temperature consumed the least electric energy and showed the highest efficiency.

Keywords: unused energy sources; geothermal; sea water; river; power plant waste heat; large-scale horticulture facility (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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