scope:

Industrial testing of turbine and internal combustion engines is performed in enclosed test spaces to control noise and isolate the test for safety or security. These spaces are ventilated or conditioned to control the facility environment and fumes. Isolated engines are tested in test cells; engines situated inside automobiles are tested on chassis dynamometers. The ventilation and safety principals for test cells also apply when large open areas in the plant are used for production testing and emissions measurements.