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1. (WO2017148487) SYSTEM AND METHOD FOR ADJUSTING THE TEMPERATURE OF COOLING-LIQUID FOR A FUEL CELL

Pub. No.:    WO/2017/148487    International Application No.:    PCT/DK2017/050058
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Fri Mar 03 00:59:59 CET 2017
IPC: H01M 8/0612
H01M 8/04029
H01M 8/0432
H01M 8/04746
Applicants: SERENERGY A/S
Inventors: BANG, Mads
KORSGAARD, Anders Risum
Title: SYSTEM AND METHOD FOR ADJUSTING THE TEMPERATURE OF COOLING-LIQUID FOR A FUEL CELL
Abstract:
A fuel cell system, comprising a fuel cell, a liquid fuel supply for providing liquid fuel, an evaporator for evaporating the liquid fuel to fuel vapor, a reformer for catalytic conversion of the fuel vapor to syngas for the fuel cell, and a cooling circuit for cooling the fuel cell by cooling-liquid. The cooling circuit comprises a flow-channel serially connecting the fuel cell, a first heat exchanger and a valve in a manner that the cooling-liquid flows in circulation. Further, the cooling circuit comprising a bypass channel connecting an upstream and a downstream of the first heat exchanger by bypassing the first heat exchanger and the valve. The bypass channel passes through the evaporator for transferring heat from the cooling-liquid to the liquid fuel for evaporation of the liquid fuel in the evaporator. The first heat exchanger and the valve are relatively small and compact as the bypass flow is dominant and only a minor amount of coolant is flowing through the first heat exchanger and valve.