Study on the total energy system of the gas turbine

In this paper, the basic thermodynamic characteristics of the plant which satisfies two requirements, such as electric power generation and central heating and cooling, are discussed. The high temperature of turbine exhaust causes a lower thermal efficiency than other conventional prime movers. Recovered wasted heat is converted to shaft power and available heat. The excess air ratio in the gas turbine cycle is so large that supplementary fuel can be fired in the waste heat boiler. Thus, by controlling the supplementary fuel and the bypass valve of the regenerator, this system showsfine flexibility in its operation. Also, the characteristic chart of this total energy system in part- load is presented for determining the opeating conditions.