Liquefied Natural Gas Cold Energy Utilization for Land-Based Cold Water Fish Aquaculture in South Korea

Seungyeop Baek, Wontak Choi, Gyuchang Kim, Jaedeok Seo, Sanggon Lee, Hyomin Jeong and Yonmo Sung ()
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Seungyeop Baek: Graduate Program, Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeong-si 53064, Korea
Wontak Choi: Graduate Program, Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeong-si 53064, Korea
Gyuchang Kim: School of Mechanical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
Jaedeok Seo: Graduate Program, Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeong-si 53064, Korea
Sanggon Lee: Graduate Program, Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeong-si 53064, Korea
Hyomin Jeong: Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Korea
Yonmo Sung: Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeonghaean-ro 2, Tongyeong-si 53064, Korea

Energies, 2022, vol. 15, issue 19, 1-13

Abstract: A new concept of land-based Atlantic salmon farming utilizing liquefied natural gas (LNG) cold energy is proposed. In this study, laboratory-scale experiments were conducted using liquid nitrogen as a cold energy source to confirm whether the water temperature of a fish farming tank can reach below 17 °C within an hour. In particular, the effects of the mass flow rates of liquid nitrogen (0.0075, 0.01, and 0.0125 kg/s) and water (0.05, 0.1, and 0.15 kg/s) on the cooling performances of water were investigated. The results showed that a higher mass flow rate of liquid nitrogen results in a better water cooling performance. In the case of varying the mass flow rate of liquid nitrogen, it was observed that the mass flow rate of 0.0125 kg/s showed the greatest water temperature difference of 9.10 °C/h, followed by that of 0.01 kg/s (5.88 °C/h), and 0.0075 kg/s (5.06 °C/h). In the case of varying the mass flow rate of water, it was observed that the mass flow rate of 0.05 kg/s showed the most significant water temperature difference of 7.92 °C/h, followed by that of 0.1 kg/s (6.26 °C/h), and 0.15 kg/s (5.53 °C/h). Based on the experimental results of this study and the water cooling heat source by an LNG mass flow rate of 220.5 kg/s, the estimated production capacity of Atlantic salmon was approximately 14,000 tons, which is 36.8% of that of imported salmon in South Korea.

Keywords: liquefied natural gas cold energy; cold energy utilization; Atlantic salmon; land-based aquaculture (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: 2022
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