教育施設における用途別エネルギー需要に関する調査研究

Abstract

In recent years, energy consumption of the civilian sector has been increased. And after the Great East Japan Earthquake in 2011, Japanese government has intensified the effort to safeguards against disasters by creating smart community which is a high energy efficiency and a considering the BCP (Business Continuity Plan). To plan the energy efficient smart communities, it is necessary to predict the energy demand accurately in the community. There are many researches which investigate the energy consumption, but there isn't any reserch for energy demand of educational facilities. The purpose of this study is to clarify the energy demand rate for each usage in educational facilities which are necessary to plan smart community by electricity and gas consumption measurement. The subject for facilities of this study is six schools which include four municipal elementary schools and two municipal junior high schools in Setagaya ward, Tokyo (Table 1). In this report, we examined the energy consumption and energy demand rate for each usage from the monthly energy consumption data in the past three years, the annual consumption data of energy and the information from the questionnaire survey. In order to organize the entire energy demand in each school, we collected the monthly energy usage of power and gas from the detailed billing. Gas meters are equipped separately for kitchen, air-conditioning and hot water supply. And in order to analyze the energy demand pattern, we conducted the annual measurement of power per minute and recording of gas meters per hour for two days in every month on weekday. The result of organizing the energy consumption data indicates the tendency of larger energy consumption at the schools has large number of students and the newly-built schools (Figure 2). And five schools of six is evaluated as the average energy consumption of the school of DECC energy database (Figure 3). The result of organizing the energy demand rate of the lighting and outlet, cooling and heating in the educational facility is confirmed less than “offices”, “hospitals”, “hotels” and “store” of bibliography 1 (Figure 7-14). The energy demand rate except for the hot water supply is equivalent amount of demand rate of the "Housing". The amount of energy used for hot water supply is very low as described in the preceding bibliography 5. The energy demand rate for lighting and outlet tends to increase in proportion to the completion year. And the energy demand rate for heating and cooling tends to increase in proportion to the total floor area. And the energy demand rate for hot water supply of the school tends to increase in proportion to the number of students (Figure15 to 18). These results show the energy demand rate for each usage of yearly, monthly and hourly that can be used for demand forecast to plan smart community. It is possible to simulate the existing or new elementary and junior high schools energy demand by these data (Table 4, 6 and 7). On a final note, this study is intended for municipal elementary and junior high schools in limited areas, so further research is regarded to confirm the accuracy of the results.