Fuel cell

Since the spread of covid-19 in 2019, it is necessary to realize an indoor environment that takes measures against viral infections such as covid-19 and influenza virus. One method for realizing such an indoor environment is to control indoor humidity. In a high-humidity environment, mold grows, indoor air quality deteriorates, and physical fatigue increases. On the other hand, in a low-humidity environment, viruses easily suspend and the immune system gets weaker. Therefore, controlling indoor humidity is necessary for human health.

A performace assessment study has been performed on the application of Stirling engine (SE) and Solid Oxide Fuel Cell (SOFC) residential cogeneration systems in single family detached houses in Canada. Detailed mathematical component models, calibrated with measured data from prototypes, were combined into the whole-building simulation program ESP-r with synthetic electricity and domestic hot water demand profiles from calibrated event based generators to realistically forecast the Greenhouse gas emission reduction and efficiency improvement of these new technologies. Simulation models and

The systematic numerical simulation program is developed to calculate the total energy efficiency of housing polymer electrolyte fuel cell co-generation system (PEFC-CGS) which is combined with hot water floor heating (HWFH). This simulation program can also predict actual building physics of heat transfer such as mutual radiant heat among interior surfaces and thermal strage relating with piping pitch of hot water and so on. The indoor temperature can be controlled by PMV (Predicted Mean Vote) to take account of thermal sensing affected radiant heat.

A distributed energy system in Kitakyushu Science and Research Park (KSRP) has been introduced since April 2001. In this paper, the system’s running situation was analyzed by using the recorded data in 2003. Generating electricity, heat recovery efficienc