PROJECT DESIGN DOCUMENT FORM (CDM PDD) - Version 03.1.
CDM – Executive Board
page 59
1.
Calculation of Net Power Generated from SSPL 4.5 MW WHRB CPP Project Plant:
To achieve the above we follow the steps below (as per instrumentation plan given in the
schematic diagram enclosed):
Calculation of Net Power Generation:
Calculation of Net Power generation from the Project activity i.e. SSPL 4.5 MW WHRB CPP
PROJECT PLANT.
A
B
C
D
E
F
G
H
I
J
K
L
Calculation of Enthalpy of Steam fed from WHRB-1 (H1)
Calculation of Enthalpy of Steam fed from WHRB-2 (H2)
Total Enthalpy of Steam fed from WHRB-1 & 2 (H5)
Calculation of Enthalpy of Steam fed from AFBC (H4)
Calculation of Enthalpy of steam fed to TG (H3)
Electricity Generated by TG (i.e.CPP)
Percentage Contribution in Enthalpy of Steam from WHRB-1 & 2 in
total enthalpy of steam used for power generation by TG
= (Enthalpy of Steam from WHRB 1 &2 / Total Enthalpy of steam
fed into TG) X 100
Auxiliary Consumption by CPP (EAUX CPP)
Net Electricity generation by CPP ( EGy CPP)
Gross Electricity generated due to WHRB ( EG GEN WHRB)
Auxiliary Electricity consumption due to WHRB
Net Electricity generated by WHRB (EGNET WHRB)
=
=
=
=
Ent X F1 = H1
Ent X F2 = H2
A + B = H5
Ent X F3 = H4
Ent X F4 = H3
= Me1
= (C/E) X 100
= Me2
F–H
= GXF
= GXH
= I X G or (J-K)
Note : (1)
Steam enthalpy Ent in K Cal/Kg is arrived by using thermodynamic steam tables, based
on the pressure and temperature readings.
(2)
The temperature and pressure of steam generated by boilers and consumed by TG sets
will practically remain same, hence the above monitoring can also be carried out on
quantitative percentage contribution of steam by WHRB.