Abstract
This paper describes experiments and analyses of sheet covered snow mounds for the purpose of cold storage. First, we conducted an experiment on melting characteristics of an open cast snow mound and environment of a storage dome inside the mound, and confirmed snow (initial value: 360,000 m3) left until late November. The temperature inside the storage dome and the heat flow from the ground resulted 0-0.5°C and around 1.5 W/m2, respectively. Second, we conducted experiments on melting characteristics of a waterproof/solar shading sheet, and on the ice storage by direct burying in the snow mound. Melting length until mid-September was around 9-11 m and stored ice maintained the initial condition. Furthermore, experiments and analyses on thermal insulation characteristics of an air film insulation sheet and the enhanced insulation sheet were carried out. The high insulation performance of the sheets was verified.
