Coefficient of heating - the ratio of the heat output of the heat recovery steam turbines of thermal power plants to the maximum heat output of heat sources. The use of the term “cogeneration coefficient” is justified not only for steam-turbine thermal power plants, but also for gas-turbine and combined-cycle thermal power plants.
The heat load during the heating period changes in accordance with the temperature schedule of the heat supply and has a minimum power when the heating is turned on and a maximum power for the calculated temperatures. The heat station must cover the entire heat load in the entire range of temperature changes and to increase the fuel utilization factor, part of the heat load is covered by cogeneration turbine extraction (combined heat and electricity). Since the maximum load is rare, the use of cogeneration sampling turbines is not justified and not economical in the entire range of load changes. The shortage of thermal power to the maximum heat consumption is covered by heating boilers . The ratio of the heat output of the cogeneration units of steam turbines to the total heat output of the cogeneration units of turbines and heating boilers is called the heating coefficient.