Power loss factor

The power loss factor β describes the loss of electrical power in CHP systems with a variable power-to-heat ratio when an increasing heat flow is extracted from the main thermodynamic electricity generating process in order to provide useful heat.

The remaining steam works in the low-pressure section of the turbine and is then liquefied in the condenser at approx.

The partial steam flow, which goes into the heating condenser at high temperature can no longer work in the low-pressure section and is responsible for the loss of power.

Modern cogeneration plants have power loss ratios of about 1/5 to 1/9 when delivering heat in the range of 80 °C-120 °C.

Based on the equivalence of power loss and gain of heat, the power loss method assigns CO2 emissions and primary energy from the fuel to the useful heat and the electrical energy.