Energy Saving Effect of Roof Shade for Reefer Container in Marine Container Terminal

The Kyoto Protocol came into effect in 2005, and actions for prevention of global warming are strongly desired in container terminals. Although energy saving will be significant impact on reduction in CO2 emissions, electric power consumption by stored reefer container seems to make up about 50% of total power consumption in a container terminal. To reduce heat penetration on walls of reefer container by a load of strong solar insulation in summer will enable an improvement of energy consumption of reefer container. In this paper, the authors clarify the effect of reducing energy consumption of reefer container due to installing of roof shade that covers the reefer container storage yard to protect from solar insolation.