Combined Heat & Power
Combined Heat and Power (CHP) is the simultaneous and sequential generation of multiple forms of useful energy from a single fuel source in a single integrated system. The useful energy is usually in the form of mechanical and thermal.
Boiler-based CHP systems burn fuel in a boiler to create high-pressure steam, which powers a turbine that, in turn, drives a generator to produce electricity. The steam can be used to provide heat for an industrial process or to heat buildings in the vicinity. Steam turbines are well-suited to medium- and large-scale industrial sites that would already use boilers.
Gas turbine or engine-based CHP systems burn fuel―typically natural gas―directly in a turbine or engine that drives the electricity generator. Hot exhaust gas from the engine enters a boiler that creates steam or hot water for industrial uses or for space heating. This configuration is ideally suited to sites requiring ample amounts of both electricity and heat.
The rotary steam motor allows for power production, PRV bypass, Mechanical drive.