scope:

This Japanese Industrial Standard specifies the test methods for measuring performance of cogeneration unit (hereafter referred to as "CGU") which supplies both electric power and heat by taking a diesel engine, a gas engine and a gas turbine as a prime mover.

The range of CGU includes a prime mover, a generator, a heat recovery facility and pollution abatement equipment for exhaust gas and a cooling facility required for the operation of the prime mover, and a control and monitoring devices required for their operation.

This Standard is not applicable to the stand-alone equipment such as a prime mover, a generator and a heat recovery facility and the reciprocating internal combustion engine driven alternating current generating sets which have been already tested in accordance with other Japanese Industrial Standards and/or International Standards.