A cogeneration apparatus (10; 110) includes: an airtight chamber (12) provided within an apparatus casing (11) and constructed to prevent exhaust gas of a prime mover (14) from flowing out therefrom; and a relief valve (93; 113) provided in a water flow pa...

In a cogeneration apparatus (10), a heat exchanger (14) includes an exhaust gas passageway (82) for passage therethrough of exhaust gas, a heat medium passageway (83) for passage therethrough of a heat medium that gives heat energy to a water heater etc., ...

An operating condition determiner compares an operation starting time (t1) of network-connected first consuming apparatus received by a schedule information receiver and a consumption starting time (t2) predicted by a predicting system based on a total con...

The power generator (1) includes control system (2) which has a controller (5) to control each device of the generator. The control system calculates external electric energy, generated electric energy, load electric energy and hot water energy recovery qu...

A vapor-compression refrigerant cycle system with a refrigeration cycle and a Rankine cycle includes a compressor (10), a radiator (11), a gas-liquid separator (12), a decompression device (13) and an evaporator (14). In the vapor-compression refrigerant c...

More economical generation using a fuel cell has been desired. A fuel cell generator according to the invention comprises a fuel cell (1) for generating power and heat to be supplied to a consumer, storage means (11) where data on the past patterns of vari...

The current generation method uses a power-heat coupling plant operated with native plant oils, in which the heat provided by the current generation is used for building heating, with operation of the plant for optimal heating power in dependence on the he...

An engine cooling unit (6A) and an exhaust gas heat exchanger (9) for use with the exhaust gas from an engine (2) are connected with a circulation path (12) for circulating a heat transfer medium. The output of the circulation path (12) is connected via a ...