抄録
Today it has become imperative to save energy by operating a refrigerator in a cold storage executed by external insulate reinforced concrete wall intermittently.
The theme of the paper is to get the evaluation method to be capable of calculating, numerically, interval time for stopping the refrigerator, in applying reinforced concrete wall as source of stored heat.
The experiments with the concrete models were performed in order to examine the time variation of internal temperature after refrigerator stopped.
In addition, the simulation method with three dimensional unsteady FEM for personal-computer type was introduced for easily analyzing the internal temperature variation.
Using this method, it is possible to obtain the time variation of internal temperature and to calculate the interval time for stopping the refrigerator.
