Stricter ecological standards in combination with increasing demand for transportation of perishable cargo, demand changes in shipping industries in the years to come. Until more ecological power systems are implemented, increasing energy efficiency, and reducing carbon footprint have become a priority for shipping industries. Due to smaller greenhouse gas emissions, LNG-powered vessels are gaining more attraction and when LNG is used, considerable waste cold energy can be utilized. In this research, waste cold heat of LNG is used for precooling of outside air for cargo hold ventilation. It is shown that by precooling the air with LNG waste cold heat, the energy consumption of transported refrigerated containers can be reduced up to 25%.
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