scope:

This International Standard applies to open-cycle gas-turbine power plants using combustion systems supplied with gaseous and/or liquid fuels as well as closed-cycle and semi-closed-cycle gas-turbine power plants. It can also be applied to gas turbines in combined cycle power plants or in connection with other heatrecovery systems. In cases of gas turbines using free-piston gas generators or special heat sources (for example synthetic gas of chemical processes, blast furnace gas), this International Standard can be used as a basis but suitable modifications are necessary. Acceptance tests of gas turbines with emission control and/or power augmentation devices that are based on fluid injection and/or inlet air treatment are also covered by this International Standard and it is necessary that they be considered in the test procedure, provided that such systems are included in the contractual scope of the supply subject to testing. Comparative testing can be subject to many different scenarios, depending on the purpose of the conducted measures. This International Standard can also be applied to comparative tests designed to verify performance differentials of the gas turbine, primarily for testing before and after modifications, upgrades or overhaul, although no special reference is made to these topics. This International Standard also includes procedures for the determination of the following performance parameters, corrected to the reference operating parameters: a) electrical or mechanical power output (gas power, if only gas is supplied); b) thermal efficiency or heat rate; c) turbine exhaust energy (optionally exhaust temperature and flow). It is necessary that any other performance parameters defined in the contract between equipment supplier and purchaser be considered accordingly in the specific test procedure as well as in the supplier's standard manufacturing test procedure.