Patent ID: 7641995
Filing Date: 2010-01-05
Classification: H01M,Y02B,Y02E,Y02P

Abstract:
1. A heat exchanger for a heating system with integrated fuel cells (Z) for the production of electricity and with an additional burner (B), wherein electrical and thermal energy (E,Q) can be produced in said heating system from a gaseous fuel or from fuel brought into the gas form by means of the fuel cells and/or thermal energy (Q) can be produced by the additional burner, wherein one part of the thermal energy present in the form of hot exhaust gases can be transferred to a liquid heat transfer medium in the heat exchanger and wherein the heat transfer medium is provided for heat transport for the purpose of room heating and/or process water heating, wherein: the heat exchanger forms a compact unit which is made of material of good thermal conductivity, such that two separate passages are arranged in the heat exchanger inside a double-walled jacket for conveying the exhaust gas of the fuel cells and the exhaust gas of the additional burner separately from each other through the heat exchanger, and wherein said jacket surrounds the separate passages and has a structured inner space which forms a communicating vessel such that the heat transfer medium flows through at least a predominant part of the inner space.