B-59 Inter-building Thermal Transfer System for Extended Use of Solar Heat (Part 1) : Overview of the Project and System

Abstract

This paper describes a overview of a practice of inter-building thermal transfer system using solar energy in Kumagaya city. Thermal energy obtained from the solar heat collectors is shared in neighboring two buildings, an office building and a hotel, and used for heating, cooling and hot water. The system keeps thermal energy supplies stable by harmonizing variable output of solar energy combining with a natural gas cogeneration system. The system is expected to contribute maximum use of collected solar heat through a year to achieve higher level of energy saving and carbon emission reduction in the neighborhood.