CHEMICAL HEAT REGENERATION IN POWER-PLANTS

Cycles of gas turbine devices using liquid and gas fuels with chemical heat regeneration are considered. A thermodynamic analysis of one of these schemes was carried out using energy and enthalpy balances. The behaviour of the cycle was investigated as a function of the pressure in the chemical regenerator (P(ch)) and in the turbine (P(T)), and the temperature in the chemical catalytic regenerator (T(ch)). Calculations were carried out at P(T) less-than-or-equal-to 10.0 MPa, P(ch) less-than-or-equal-to 2.0 MPa and T(ch) less-than-or-equal-to 600 K. As a result, it was shown that the thermal efficiency eta(T) of the cycle with chemical regeneration of the exhaust gases increased by about 12%. The dependences of eta(T) on P(ch) and T(ch) were obtained.