30 May 2005

STUDY ON IMPROVEMENT IN EFFICIENCY OF PARTIAL LOAD DRIVING OF INSTALLING FUEL CELL NETWORK WITH GEOTHERMAL HEAT PUMP


Hydrogen piping, the electric power line, and exhaust heat recovery piping of the distributed fuel cells
are connected with network, and operational planning is carried out. Reduction of the efficiency in partial
load is improved by operation of the geo-thermal heat pump linked to the fuel cell network. The energy
demand pattern of the individual house in Sapporo was introduced. And the analysis method aiming at
minimization of the fuel rate by the genetic algorithm was described. The fuel cell network system of an
analysis example assumed connecting the fuel cell co-generation of five houses. When geo-thermal heat
pump was introduced into fuel cell network system stated in this paper, fuel consumption was reduced 6%
rather than the conventional method.