Analysis of the cycle with regeneration, an intercooling and reheating:

Fig.16. p-v and T-s diagrams of regenerative gas turbine cycle with two- stage compression and reheat

Scheme of the engine is shown in fig.17.

Fig.17. Scheme of engine with regeneration, an intercooling and reheating

1- filter; 2- compressor of low pressure; 3- compressor of high pressure; 4- main combustion chamber; 5,6- turbine; 7,11- pump; 8,10- cock; 9-additional combustion chamber; 12-intercooler; 13-regenerator

Parameters of all points are like in previous cycles but parameters at points A and B must be recalculated: ; p_A=p_к; ;

; p_B=p_н; .

Determination of changing entropy, enthalpy in processes:

Determination of work in processes and heat:

=c_p(T_г-T_к); =(z-1) c_р(T_г1-T_т1); q_p=c_p(T_A-T_к);

q₁= + - q_p = c_p(T_г-T_к) + (z_exp -1)c_p(T_г-T_т1) -c_p(T_A-T_к);

=c_р(T_н- T_т); =(z-1)c_p(T_D-T_c); q₂= + =c_р(T_н - T_т)+(z_com-1)c_p(T_D-T_с);

w_с= z_com c_p (T_K-T_H); w_exp.= z_exp c_p (T_г-T_т1).

Determination of net work and thermal efficiency of the cycle:

; w_cycle= w_exp- w_с.