Performance characteristics of mobile cooling system utilizing ice thermal energy storage with direct contact discharging for a refrigerated truck

Jae Hwan Ahn, Hoon Kim, Yongseok Jeon and Ki Hyun Kwon

Applied Energy, 2022, vol. 308, issue C, No S0306261921016159

Abstract: The objective of this study if to investigate the performance characteristics of the mobile cooling system including an ice-making unit (IMU) for charging and a mobile air-cooling unit (MCU) for discharging. The performance of a mobile cooling system using ice thermal energy storage for direct contact discharge in refrigerated trucks was investigated and discussed by varying the amount of ice, ice cube mass, face air velocity, and inlet air temperature used. . In the IMU, the average coefficients of performance(COP) decreased with the increasing ice cube mass. The average COP of an ice cube of 6.8 g was 28.5% higher than that for an ice cube of 10.0 g. In the MCU, the maximum COPs were found at a face air velocity of 1.28 m s−1 and ice mass of 6.0 kg. The effect of the ice cube on the COP varied according to the amount of ice. in the integrated system of IMU and MCU, the mass of an ice cube was dominant in the power consumption of the IMU and the fan power consumption in the MCU. Accordingly, at 10 °C for 10.00 kg of ice, the modified total COP for 10.0 g was 11.5% lower and 21.7% higher at the target cooling capacity of 0.20 kW and 0.51 kW, respectively, than that for 6.8 g.

Keywords: Direct contact discharging; Ice thermal energy storage; Mobile cooling system; Performance characteristics; Refrigerated truck (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (6)

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DOI: 10.1016/j.apenergy.2021.118373

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