THREE FLUID HEAT EXCHANGER FOR FUEL CELL POWER PLANT

摘要

A heat recovery system is provided that includes a fuel cell power plant having first and second fluids. A heat exchanger receives the first and second fluids and includes a customer fluid receiving heat from the first and second fluids. First and second loops respectively carry the first and second fluids from the fuel cell power plant to the heat exchanger. The heat exchanger receives all three fluids to more efficiently transfer heat from the first and second fluids to the customer fluid. The heat exchanger includes a housing having first, second and customer passages each having inlets and outlets. The inlets and outlets of the passages are arranged relative to one another to more efficiently transfer heat from the first and second fluids to the customer fluids. Further, portions of the passages can be shunted to minimize the heat transfer between the fluids where the passages have been shunted in order to more efficiently transfer heat.