THERMOELECTRIC GENERATION UNIT, THERMOELECTRIC GENERATION DEVICE USING SAME AND MOUNTING STRUCTURE THEREFOR, EXHAUST DUCT HAVING SAME MOUNTING STRUCTURE, AND ENGINE

摘要

A thermoelectric generating unit which can enhance heat exchange performance on the hot side and which can be installed compactly, a thermoelectric generator using the thermoelectric generating unit, a mounting structure of the thermoelectric generator, and an exhaust duct and an engine including the mounting structure are provided. A thermoelectric generating unit 1 has a thermoelectric transducer 2, a cooling part 3 on a cold side thereof, and a heating part 4 on a hot side thereof for supplying steam of a heating medium. The thermoelectric generating unit 1 generates electric power by a temperature difference between the cold side and the hot side. The heating part 4 is composed of a plate-like hollow member 4a and a tubular member 4b. The hollow member 4a is provided along a hot-side surface of the thermoelectric transducer 2, and forms a plate-like cavity 40a inside. The tubular member 4b forms a tubular cavity 40b which communicates the plate-like cavity 40a, with the two open ends of the tubular member 4b being positioned distantly from each other and connected to the plate-like hollow member 4a. The tubular member 4b is heated from outside by a hot fluid. The plate-like cavity 40a and the tubular cavity 40b form a circulation path 40 in which a heating medium charged in the cavities 40a, 40b circulates.