Deriving useful heating power from heat loss - using Diesel engine driving electric generator feeding exhaust gas heating element

摘要

Heat energy can be produced by running a Diesel engine (1) coupled to a generator (2), where the latter acting as a brake, increases the load on the Diesel and thus raises the heating loss output. This loss is conducted away via a cooling water circuit and in the form of exhaust gas residual heat. The heat exchanger for this purpose (4) is in the exhaust gas pipe of the diesel (1) with a feed and return pipe for the circulating medium. Between the Diesel (1) and the heat exchanger (4) is an electric heating element (6), fed from the generator (2), and raising the temperature of the exhaust gas. The heater (6) which is spirally wound, has three sections connected in star formation, and is followed by a soot filter (9) made of a porous ceramic and self-cleaning Thus, energy from the generator can be simply fed to the head exchange medium (exhaust gas) without a complicated construction of the heat exchange system.