OCTOBER 19-20, 2012 - YMCA University of Science & Technology

= 680.33 MW
(ii) At (2) Energy = 507.77 MW
(iii) At (24) Energy = 472.26 MW
Outlet from Boiler
(iv) At (1) Energy = 741.73 MW
(v) At (3) Energy = 673.44 MW
(vi) Flue Gases
Total Inlet
Total Outlet
Loss in Boiler
Proceedings of the National Conference on
Trends and Advances in Mechanical Engineering,
YMCA University of Science & Technology, Faridabad, Haryana, Oct 19-20, 2012
= (i) + (ii) + (iii)
= 680.33 + 507.77 +472.26
= 1660.36 MW
= (iv) + (v) + (vi)
= 741.73 + 673.44 + 0
= 1415.17 MW
= Inlet – Outlet
= 1660.36 – 1415.17
= 245.19 MW
Efficiency of Boiler = 1415.17 x 100/ 1660.36
= 85.23 %
Section Turbine & Gen.
(i) HPT Inlet (1) = 741.73 MW
Outlet (2) + (5) = 567.77 + 50.06
= 557.83 MW
Net Energy at HPT= 741.73 – 557.83
= 183.9 MW
(ii) IPT Inlet (3) = 673.44 MW
Outlet (4) + (7) = 450.55+37.73
= 488.28 MW
Net Energy at IPT= 673.44 – 488.28
= 14.84 MW
(iii) LPT Inlet (4) = 450.56 MW
=Outlet (9) + (11) + (13)
= 17.71+12.47 +12.12
= 42.3 MW
Net Energy at LPT= 450.56 – 42.3
= 408.26 MW
Net Input at Turbine (HPT, IPT & LPT)
=183.9 + 14.84 + 408.26
= 607 MW
Efficiency of Turbo Generator= 250 x 100/ 607
= 41.19 %
Section Condenser:
Condenser Efficiency= Actual Cooling Water Temp rise
Max Possible Temp. Rise
Overall station efficiency
= Output of Station x 100
= (T42 – T41) x100
T 15 – T41
= (38 – 30) x100
45 – 30
= 53.33 %
122