Paper Conference

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea


Analysis on Performance and Behavior of Thermal Storage Air-conditioning System applied to City Hall Building

T. Nakano, H. Tanaka, M. Okumiya

Abstract: Recent years, rapid increase in final energy consumption in commercial/residential sectors has been seen in Japan. In particular, it is a remarkable increase in commercial sector. Local government office buildings are base facilities in an area, so an aggressive energy saving policy is required. In this study energy management of thermal storage air conditioning system is conducted. In this paper an analysis on performance and behavior of thermal storage airconditioning system applied to city hall building was conducted for the first operation year by the use of data from building energy management systems (BEMS). It was found that thermal storage type airconditioning system is being driven well mostly as a result of the performance verification. However the mistake of setting of the target for stored heat and the threshold of supply water to secondary caused decline of the operating characteristic of the heat source. According to verification of system performance on the first year, measure for improving operation was proposed. And the validity of the proposed measure is confirmed by a system simulation. Then the measure with the validity will be reflected. Therefore it was verified whether behavior of an actual system can be reproduced by a system simulation in this paper.
Keywords: LCEM tool, BEMS, system simulation