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영어

This study was aimed at developing a low cost cold storage system for agricultural products. Three kinds of slurries: K1, K2, and K3 slurries were developed using phase change materials (PCMs) such as tetradecane, octadecane, and sodium polyacrylate to maintain the desired temperature ranges. The slurries were manufactured by in-situ polymerization. Tetradecane and octadecane were capsulated in a core with melamine at the surface. The thermodynamic characteristics of the slurries were measured and analyzed. The latent heats of the K1, K2, and K3 slurries at the melting points were 206.41, 186.88, and 147.91 kJ/kg, respectively. A transportable cold storage container was built to investigate the performance of the slurries
as thermal storage media. The temperatures at the insides of the container could be maintained in the ranges of 0-5, 5-10, and 10-15oC for more than 23, 27, and 60 hr with the K1, K2, and K3 slurries, respectively.