FUEL TEMPERATURE CONTROL SYSTEM AND METHOD

Provided is a fuel temperature control system (100) for a fuel system of a marine vessel. The fuel temperature control system (100) comprises a double-wall plate heat exchanger (300). The double-wall plate heat exchanger comprises: a first side (350a) through which fuel in the fuel system is passable; a second side (350b) through which a heat exchange medium is passable; and a plate pair (321, 322, 323) comprising a pair of opposing plates and a region between the opposing plates. The plate pair (321, 322, 323) fluidically separates and thermally couples the first side and the second side, and the region is fluidically isolated from the first side and the second side.