Abstract
The cost down of the electric power and city gas has been realized because of the active promotion of the deregulation in the energy business. From the viewpoint of global environment problem and economic slump, the technical innovation is desired to enable to abate emission of CO2 and to create the new jobs. The high efficient distributed generation system such as a SOFC or a MCFC hybrid is created to present the comfortable and high quality living environment, using combined heat information and power (CHIP) technologies. The key technology of this proposed system is to connect the home and home for one loop of heat transfer line and level the demand of heat consumption using the heat storage systems in the neighboring communities with high efficiency that the stand alone home-use cogeneration system. And the inner diameter of this heat transfer line is only one inch. Using this key technology, this constant heat output can supply about twenty houses in case of Hokkaido area or over sixty houses in case of Kansai area even in winter season because of the sharing of the instantaneous hot water supply demand by the cooperation of the neighboring communities. Sodium acetate with three hydrate or paraffin is used as the phase change material (PCM) for the heat storage systems. At present, to produce on the commercial basis of this system, the academic, companies, and governmental circles composed mainly of the Kansai area have been developed to verify the control logic for leveling the heat duty of mainly heating feed water. This paper presents the concept of this neighboring communities generation (NCG) system compared with the ordinary heat and power supply system and the test result of New Heat Supply Unit (NHSU).
