Calculation Of Heat And Mass Balance 552e3x
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Sl No
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Description of the system
HP steam flow to HTP HP steam pressure at HTP inlet HP steam temperatuer HP steam enthalpy Leakage 1 from MSV of HPT E Leakage 2 from MSV of HPT F Leakeage through HPT to IPT Gland leakages steam flow E Gland leakages steam flow D1 Gland leakages steam flow B CRH calculated steam flow CRH steam enthalpy CRH temperature HRH flow to IPT HRH enthalpy HRH pressure HRH temperature HRH stop valve body leakage F HRH stop valve body leakage E IPT gland leakage steam flow D2 IPT gland leakage steam flow E IPT calculated / HRSG data steam flow from IP SH LP SH steam flow LP steam flow calculated LPT steam enthalpy LP steam pressure LP steam temperature Gland leakage inlet from LPT D4 Gland leakage outlet from LPT E LPT calculated exhaust steam flow LPT exhaust steam enthaly Condenser back pressure HP steam available for work output Energy conversion in HPT HPT output HRH steam flow HRH steam enthalpy HPT to IPT leakage Enthalpy of HTP steam Total energy available in IPT
Unit
Value at OLD HBD reference
Value at NEW HBD reference, Guranteed
TPH Mpa Deg C KJ/kg TPH TPH TPH TPH TPH TPH TPH KJ/kg Deg C TPH KJ/kg Mpa Deg C TPH TPH TPH TPH TPH TPH TPH KJ/kg Mpa Deg C TPH TPH TPH KJ/kg Kpa TPH KJ/kg kW TPH KJ/kg TPH KJ/kg KJ/hr
283.268 9.504 564.3 3540 0.1 0.8 9.68 0.117 0.505 1.924 270.142 3187 379 312.05 3609 2.223 564.48 0.1 0.1 0.547 0.089 41.908 35.4 359.118 3104 0.37 317 0.62 0.16 359.578 2490 0.0081 273.588 353 26827 311.85 3609 9.68 3540 1159733850
282.79 9.47 565.3 3543 0.1 0.8 9.68 0.117 0.505 1.924 269.664 3193 379 315.59 3609 2.254 565 0.1 0.1 0.554 0.09 45.926 34.26 361.51 3103 0.3587 317.2 0.8 0.174 362.136 2515 0.0103 273.11 350 26552 315.39 3609 9.68 3543 1172538750
41 42 43 44 45 46 47
Enthalpy of IPT exhaust steam Exhaust energy of IPT IPT output Steam flow to LPT Steam enthalpy LPT exhaust enthalpy LPT output
48 49 50 51 52
Total power output (calculated) from all the turine Power as per HBD / effective power putput Mechanical loss Power at Generator treminal Generator Efficiency Condenser heat load Condenser heat load
KJ/kg KJ/hr kW TPH KJ/kg KJ/kg kW
3104 998029120 44918 359.1 3104 2490 61250
3103 1008692210 45513 361.5 3103 2515 59047
kW kW kW kW %
132994 129506 850 129501 0.9800
131112 131111 850 127786 0.9810
KJ/Hr W kcal/hr conversion W
831358170 230932825 198566487.5 4.183076 230727419
838703200 232973111 200320817.8 4.183076 232765890
CW flow Density
m3/hr
Calculated expected temperature rise
Deg C
Fuel flow GT load ST load Total load GCV of fuel Total heat input Plant Heat rate Plant Heat rate Heat rate guarantee GT load Simple cycle heat rate
kg/sec kW kW kW kcal/kg kcal/hr kcal/kWh KJ/kWh KJ/kWh kW kca/kWh KJ/kWh
Computed HBD Computed HBD Computed HBD Computed HBD based on HRSG based on HRSG based on HRSG based on HRSG data, data, without IP data data guranteed, with export water IP export water 282.79 9.47 565.3 3543 0.1 0.8 9.685 0.117 0.504 1.938 269.646 3194 379.6 311.666 3609 2.254 565 0.1 0.1 0.554 0.09 42.02 34.26 357.605 3103 0.3587 317.2 0.8 0.174 358.231 2515 0.0103 273.105 349 26476 311.466 3609 9.685 3543 1158394749
264.3 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 251.156 3184.8 373.6 296.856 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 347.935 3070.5 0.3587 301 0.8 0.174 348.561 2537 12.13 254.615 352.1 24903 296.656 3609 9.685 3536.9 1104886381
283.268 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 270.124 3184.8 373.6 311.592 3608.9 2.25 565 0.1 0.1 0.554 0.09 41.468 35.4 358.671 3070.5 0.3587 301 0.8 0.174 359.297 2520 10.8 273.583 352.1 26758 311.392 3609 9.685 3536.9 1158068605
283.268 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 270.124 3184.8 373.6 315.824 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 366.903 3070.5 0.3587 301 0.8 0.174 367.529 2520 10.8 273.583 352.1 26758 315.624 3609 9.685 3536.9 1173341893
Computed HBD based on HRSG data, guranteed, with IP export water
Bying HP steam to IP header
275 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 261.856 3184.8 373.6 303.324 3608.9 2.25 565 0.1 0.1 0.554 0.09 41.468 35.4 350.403 3070.5 0.3587 301 0.8 0.174 351.029 2520 10.8 265.315 352.1 25949 303.124 3609 9.685 3536.9 1128229393
266 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 252.856 3184.8 373.6 315.824 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 366.903 3070.5 0.3587 301 0.8 0.174 367.529 2520 10.8 256.315 352.1 25069 315.624 3609 9.685 3536.9 1173341893
3103 996531553 44962 357.6 3103 2515 58409
3070.5 940620040.5 45630 347.9 3070.5 2537 51562
129847 122094 129846 122093 850 925 126416 118745 0.9800 0.9800 1370 829643600 814863770 230456556 226351047 198156969.5 194626867.8 4.183076 4.183076 230251573 226149717
3070.5 985866928.5 47834 358.7 3070.5 2540 52854
3070.5 998861284.5 48467 366.9 3070.5 2540 54067
3070.5 960480034.5 46597 350.4 3070.5 2522 53388
3070.5 998861284.5 48467 366.9 3070.5 2537 54373
127446 127445 925 123990 0.9800
129292 129291 925 125799 0.9800
125934 125933 925 122508 0.9800
127909 127908 925 124443 0.9800
841083495 233634304 200889341.5 4.183076 233426495
860387535 238996538 205500032.2 4.183076 238783959
815387781 226496606 194752025.7 4.183076 226295146
859286826 238690785 205237132.4 4.183076 238478479
24000 995.025 23880.597 8.15 14.3 233260 120400 353660 10500 540540000 1528 6399 6469 70 233260
14.7 239000 123990 362990 10500 555660000 1531 6409 6469 60 239000
14.7 239000 125799 364799 10500 555660000 1523 6377 6469 92 239000
14.7 239000 124443 363443 10500 555660000 1529 6401 6469 68 239000
2317 9702
2325 9734
2325 9734
2325 9734
366000 12340
366000 3010
366000 1201
366000 2557
Site data 11/09/10
266 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 252.856 3184.8 373.6 307.556 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 358.635 3070.5 0.3587 301 0.8 0.174 359.261 2520 10.8 256.315 352.1 25069 307.356 3609 9.685 3536.9 1143502681
3070.5 973474390.5 47230 358.6 3070.5 2537 53148 125447 125446 925 122030 0.9800 839923170 233311992 200612202.6 4.183076 233104469
14.7 239000 122030 361030 10500 555660000 1539 6444 6469 25 239000 2325 9734 366000 4970
361.32 2515 46.3 193.84884 838678337 KJ/HR 232966205 W 232966 200284289 1.1631776
200314879 KCAL/HR 22257.2088 22369 918 23287 1.041667
55643022 cal 6182.558
2321 554.361326
Exhaust flow Sp Volume Volume Velocity at LPT exhaust Area of LPT exhaust
Exhaust flow Sp Volume Volume Velocity at LPT exhaust Area of LPT exhaust
TPH m3/kg m3/hr m3/sec m/sec M2
1244.02 358.36 357.605 13.364 17.242 14.112 16625083 6178843 5046522 4618.079 1716.345 1401.812 317.29 317.29 259.1441 14.55476 5.40939 5.40939
TPH m3/kg m3/hr m3/sec m/sec M2
361.32 357.605 13.85 13.222 5004282 4728253 1390.078 1313.404 273.4222 258.3406 5.084 5.084
#REF! 14.112 #REF! #REF! #REF! #REF!
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Description
Symbol
Unit
CW inlet temperature CW outlet temperature Condensate cemperature Exhaust steam enthalpy Exhaust steam flow
T1 T2 T He Qh
Deg C Deg C Deg C kcal/kg kg/hr
T - T1 T - T2
Deg C Deg C
Overall heat transfer
U
W/m2.Deg C
Total heat load in condenser
Q
lmtd =
1 kcal/s = 4.183076 kW Surface area required for the same
kcal/hr kcal/s 4183.076 W A m2
Design 33 41.84 46.3 600.7 361320 13.3 4.46 8.091 3071.5 200314879 55643 232758990 9366.4
Q = U*A*LMTD (calculated) ln(dT1/dT2) =(T2-T1)/ lmtd dT1/dT2 = e^((T2-T1)/lmtd) T = condensate temperature calculated
T
Deg C
Design CW flow Design CW flow Circulating water temperature rise
Qcw Qcw dT
TPH kg/hr Deg C
22222 22222000 9.01425972
Actual with HRSG 33 42.0 46.4 600.7 358231 13.4 4.39 8.071
Converted unit Deg F 91.4 Deg F 107.62567 Deg F 115.52 BTU/lb 1081.3 BTU/lb 789764.3 Deg F Deg F Deg F
35.6 43.5 50.26355986 612 258900
24.12 7.89 14.527
14.66355986 6.763559863 10.209
3071.5
3071.5
198566522.7 55157 230727460 9307.5 Selected surface area Computed LMTD
145433564.4 40398 168988792 5389.1 9000 6.113147481 Deg C
ln(dT1/dT2) (dT1/dT2) T=
0.773816137 2.168023964 50.26355986
CW flow at this condition
22222 TPH 22222000 6.544575842
7.9
Actual condition 33.0 #DIV/0! #DIV/0! 600.7 361320 #DIV/0! #DIV/0! #DIV/0! 3071.50 #DIV/0! #DIV/0! #DIV/0! #DIV/0! 9000 #DIV/0! #DIV/0! #DIV/0! #DIV/0! 22222 22222000 #DIV/0!
Sl no
Description 1 HP steam enthalpy IP steam enthalpy CRH HRSG IP steam HRH steam enthalpy LP steam enthalpy (HRSG outlet) LP exhaust enthalpy Additional power output from HTP IP/LP turbine power loss LP turbine power loss
Unit
kW kW kW
1 HP steam enthalpy IP steam enthalpy CRH HRSG IP steam HRH steam enthalpy LP steam enthalpy (HRSG outlet) LP exhaust enthalpy HPT loss IP/LP turbine power loss Total power loss Present load on stem turbine at 264.3 TPH HP steam flow Power loss due to short fall in HP steam Permanent power loss due to some minor mistake in HBD Steam turbine rating
Value 3543 3193 3054 3609 3037 2515 0 533.0111 53.65
3543 3193 3054 3609 3037 2515 kW kW kW
1797.639 5618.906 7416.544 119400 7417
MW
587 127.40
HP steam flow IP steam flow LP steam flow
HTC HBD 282.79 45.56 34.57
TBW HBD 282.79 42 34.2
HP steam flow IP steam flow LP steam flow
282.79 45.56 34.57
264.3 42 34.2
Short fall 0 3.56 0.37
18.49 3.56 0.37
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Description Atmospheric pressure Wet bulb temperature Dry bul tempearture KAV/L (for cooling tower) Design air flow through coling tower Design water flow through cooling tower COC Drift loss Make-up water temperture water inlet height Fan TTL head in Inch of H2O Design cooling tower approach Design L/G ratio Tube OD Number of Tube es Tube count per Active tube length per Cleanness factor Heat rejected
Description Atmospheric pressure Wet bulb temperature Dry bul tempearture KAV/L (for cooling tower) Design air flow through coling tower Design water flow through cooling tower COC Drift loss Make-up water temperture water inlet height Fan TTL head in Inch of H2O Design cooling tower approach Design L/G ratio Tube OD Number of Tube es Tube count per Active tube length per Cleanness factor Heat rejected
Unit 1 PSIA Deg F Deg F
Unit 2 Kg/cm2 Deg C Deg C
10^3 x CFM GPM % Deg F Ft Inch Of H2O Deg F
Mbtu/hr
Unit 1 PSIA Deg F Deg F
% Deg C M mm of H2O Deg C
1 439.17888 90 787
Unit 2 Kg/cm2 Deg C Deg C
10^3 x CFM GPM % Deg F Ft Inch Of H2O Deg F
Mbtu/hr
14.69594 80.6 104 1.2172 8154.816 109120 5 0.01 86 31.16 0.5 10.8 1.697
% Deg C M mm of H2O Deg C
1 439.17888 90 787
Corrected condition 14.69594 80.6 104 1.2172 8154.816 87987 5 0.01 86 31.16 0.5 10.8 1.697
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Description Atmospheric pressure Wet bulb temperature Dry bul tempearture KAV/L (for cooling tower) Design air flow through coling tower Design water flow through cooling tower COC Drift loss Make-up water temperture water inlet height Fan TTL head in Inch of H2O Design cooling tower approach Design L/G ratio Tube OD Number of Tube es Tube count per Active tube length per Cleanness factor Heat rejected
Unit 1 PSIA Deg F Deg F
Unit 2 Kg/cm2 Deg C Deg C
10^3 x CFM GPM % Deg F Ft Inch Of H2O Deg F
Mbtu/hr
% Deg C M mm of H2O Deg C
1 439.17888 90 787
Actual condition 14.69594 80.6 104 1.2172 8154.816 87987 5 0.01 86 31.16 0.5 10.8 1.697
1.033227 27 40
30 9.5 6
107.6 91.4 80.6 10.8
42 33 27 6
39 3.888889
230251573 KCAL/HR
Corrected condition 1.033227 27 40
30 9.5 6
40 4.444444 0.555556 41 5 0.555556
Actual condition 1.033227 27 40
30 9.5 6
Sl No
Description
1 2
Present STG load Present GTG load
3
Degrdation of GT for 7 months of operation based on GT correction curve
Unit MW 118 233 4
HRSG load may achieve if GT can run at higher load without degradation shall be as per HRSG design figure. 4
HP steam flow will match with design value and we can achieve addition power out put from HPT.
2.3
5
Additional power output form IPT and LPT
4.1
6 7
Power loss for reduction of condenser vacuum from 84 to 94 mmHg STG total load can be achieve after all the necessary corrections
2.39 126.79
8
Contractual pemanent loss
1.41
9
STG permanent loss for condenser under size
10
Total load can be achieve considering GTG degradation factor
363.79
Power considering un-recoverable loss due to design mistake
366.2
1
Remarks
Degradation after 7 - 8 months of operation of GT
After fixing HPT problem. HTC scope of supply After fixing HPT problem. HTC scope of supply After fixing the CW system, CW pumps, CT and condenser
Un-recoverable Un-recoverable, as condenser is under size
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Description of the system
HP steam flow to HTP HP steam pressure at HTP inlet HP steam temperatuer HP steam enthalpy Leakage 1 from MSV of HPT E Leakage 2 from MSV of HPT F Leakeage through HPT to IPT Gland leakages steam flow E Gland leakages steam flow D1 Gland leakages steam flow B CRH calculated steam flow CRH steam enthalpy CRH temperature HRH flow to IPT HRH enthalpy HRH pressure HRH temperature HRH stop valve body leakage F HRH stop valve body leakage E IPT gland leakage steam flow D2 IPT gland leakage steam flow E IPT calculated / HRSG data steam flow from IP SH LP SH steam flow LP steam flow calculated LPT steam enthalpy LP steam pressure LP steam temperature Gland leakage inlet from LPT D4 Gland leakage outlet from LPT E LPT calculated exhaust steam flow LPT exhaust steam enthaly Condenser back pressure HP steam available for work output Energy conversion in HPT HPT output HRH steam flow HRH steam enthalpy HPT to IPT leakage Enthalpy of HTP steam Total energy available in IPT
Unit
Value at OLD HBD reference
Value at NEW HBD reference, Guranteed
TPH Mpa Deg C KJ/kg TPH TPH TPH TPH TPH TPH TPH KJ/kg Deg C TPH KJ/kg Mpa Deg C TPH TPH TPH TPH TPH TPH TPH KJ/kg Mpa Deg C TPH TPH TPH KJ/kg Kpa TPH KJ/kg kW TPH KJ/kg TPH KJ/kg KJ/hr
283.268 9.504 564.3 3540 0.1 0.8 9.68 0.117 0.505 1.924 270.142 3187 379 312.05 3609 2.223 564.48 0.1 0.1 0.547 0.089 41.908 35.4 359.118 3104 0.37 317 0.62 0.16 359.578 2490 0.0081 273.588 353 26827 311.85 3609 9.68 3540 1159733850
282.79 9.47 565.3 3543 0.1 0.8 9.68 0.117 0.505 1.924 269.664 3193 379 315.59 3609 2.254 565 0.1 0.1 0.554 0.09 45.926 34.26 361.51 3103 0.3587 317.2 0.8 0.174 362.136 2515 0.0103 273.11 350 26552 315.39 3609 9.68 3543 1172538750
41 42 43 44 45 46 47
Enthalpy of IPT exhaust steam Exhaust energy of IPT IPT output Steam flow to LPT Steam enthalpy LPT exhaust enthalpy LPT output
48 49 50 51 52
Total power output (calculated) from all the turine Power as per HBD / effective power putput Mechanical loss Power at Generator treminal Generator Efficiency Condenser heat load Condenser heat load
KJ/kg KJ/hr kW TPH KJ/kg KJ/kg kW
3104 998029120 44918 359.1 3104 2490 61250
3103 1008692210 45513 361.5 3103 2515 59047
kW kW kW kW %
132994 129506 850 129501 0.9800
131112 131111 850 127786 0.9810
KJ/Hr W kcal/hr conversion W
831358170 230932825 198566487.5 4.183076 230727419
838703200 232973111 200320817.8 4.183076 232765890
CW flow Density
m3/hr
Calculated expected temperature rise
Deg C
Fuel flow GT load ST load Total load GCV of fuel Total heat input Plant Heat rate Plant Heat rate Heat rate guarantee GT load Simple cycle heat rate
kg/sec kW kW kW kcal/kg kcal/hr kcal/kWh KJ/kWh KJ/kWh kW kca/kWh KJ/kWh
Computed HBD Computed HBD Computed HBD Computed HBD based on HRSG based on HRSG based on HRSG based on HRSG data, data, without IP data data guranteed, with export water IP export water 282.79 9.47 565.3 3543 0.1 0.8 9.685 0.117 0.504 1.938 269.646 3194 379.6 311.666 3609 2.254 565 0.1 0.1 0.554 0.09 42.02 34.26 357.605 3103 0.3587 317.2 0.8 0.174 358.231 2515 0.0103 273.105 349 26476 311.466 3609 9.685 3543 1158394749
264.3 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 251.156 3184.8 373.6 296.856 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 347.935 3070.5 0.3587 301 0.8 0.174 348.561 2537 12.13 254.615 352.1 24903 296.656 3609 9.685 3536.9 1104886381
283.268 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 270.124 3184.8 373.6 311.592 3608.9 2.25 565 0.1 0.1 0.554 0.09 41.468 35.4 358.671 3070.5 0.3587 301 0.8 0.174 359.297 2520 10.8 273.583 352.1 26758 311.392 3609 9.685 3536.9 1158068605
283.268 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 270.124 3184.8 373.6 315.824 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 366.903 3070.5 0.3587 301 0.8 0.174 367.529 2520 10.8 273.583 352.1 26758 315.624 3609 9.685 3536.9 1173341893
Computed HBD based on HRSG data, guranteed, with IP export water
Bying HP steam to IP header
275 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 261.856 3184.8 373.6 303.324 3608.9 2.25 565 0.1 0.1 0.554 0.09 41.468 35.4 350.403 3070.5 0.3587 301 0.8 0.174 351.029 2520 10.8 265.315 352.1 25949 303.124 3609 9.685 3536.9 1128229393
266 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 252.856 3184.8 373.6 315.824 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 366.903 3070.5 0.3587 301 0.8 0.174 367.529 2520 10.8 256.315 352.1 25069 315.624 3609 9.685 3536.9 1173341893
3103 996531553 44962 357.6 3103 2515 58409
3070.5 940620040.5 45630 347.9 3070.5 2537 51562
129847 122094 129846 122093 850 925 126416 118745 0.9800 0.9800 1370 829643600 814863770 230456556 226351047 198156969.5 194626867.8 4.183076 4.183076 230251573 226149717
3070.5 985866928.5 47834 358.7 3070.5 2540 52854
3070.5 998861284.5 48467 366.9 3070.5 2540 54067
3070.5 960480034.5 46597 350.4 3070.5 2522 53388
3070.5 998861284.5 48467 366.9 3070.5 2537 54373
127446 127445 925 123990 0.9800
129292 129291 925 125799 0.9800
125934 125933 925 122508 0.9800
127909 127908 925 124443 0.9800
841083495 233634304 200889341.5 4.183076 233426495
860387535 238996538 205500032.2 4.183076 238783959
815387781 226496606 194752025.7 4.183076 226295146
859286826 238690785 205237132.4 4.183076 238478479
24000 995.025 23880.597 8.15 14.3 233260 120400 353660 10500 540540000 1528 6399 6469 70 233260
14.7 239000 123990 362990 10500 555660000 1531 6409 6469 60 239000
14.7 239000 125799 364799 10500 555660000 1523 6377 6469 92 239000
14.7 239000 124443 363443 10500 555660000 1529 6401 6469 68 239000
2317 9702
2325 9734
2325 9734
2325 9734
366000 12340
366000 3010
366000 1201
366000 2557
Site data 11/09/10
266 10.8 565 3536.9 0.1 0.8 9.685 0.117 0.504 1.938 252.856 3184.8 373.6 307.556 3608.9 2.25 565 0.1 0.1 0.554 0.09 45.7 39.4 358.635 3070.5 0.3587 301 0.8 0.174 359.261 2520 10.8 256.315 352.1 25069 307.356 3609 9.685 3536.9 1143502681
3070.5 973474390.5 47230 358.6 3070.5 2537 53148 125447 125446 925 122030 0.9800 839923170 233311992 200612202.6 4.183076 233104469
14.7 239000 122030 361030 10500 555660000 1539 6444 6469 25 239000 2325 9734 366000 4970
361.32 2515 46.3 193.84884 838678337 KJ/HR 232966205 W 232966 200284289 1.1631776
200314879 KCAL/HR 22257.2088 22369 918 23287 1.041667
55643022 cal 6182.558
2321 554.361326
Exhaust flow Sp Volume Volume Velocity at LPT exhaust Area of LPT exhaust
Exhaust flow Sp Volume Volume Velocity at LPT exhaust Area of LPT exhaust
TPH m3/kg m3/hr m3/sec m/sec M2
1244.02 358.36 357.605 13.364 17.242 14.112 16625083 6178843 5046522 4618.079 1716.345 1401.812 317.29 317.29 259.1441 14.55476 5.40939 5.40939
TPH m3/kg m3/hr m3/sec m/sec M2
361.32 357.605 13.85 13.222 5004282 4728253 1390.078 1313.404 273.4222 258.3406 5.084 5.084
#REF! 14.112 #REF! #REF! #REF! #REF!
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Description
Symbol
Unit
CW inlet temperature CW outlet temperature Condensate cemperature Exhaust steam enthalpy Exhaust steam flow
T1 T2 T He Qh
Deg C Deg C Deg C kcal/kg kg/hr
T - T1 T - T2
Deg C Deg C
Overall heat transfer
U
W/m2.Deg C
Total heat load in condenser
Q
lmtd =
1 kcal/s = 4.183076 kW Surface area required for the same
kcal/hr kcal/s 4183.076 W A m2
Design 33 41.84 46.3 600.7 361320 13.3 4.46 8.091 3071.5 200314879 55643 232758990 9366.4
Q = U*A*LMTD (calculated) ln(dT1/dT2) =(T2-T1)/ lmtd dT1/dT2 = e^((T2-T1)/lmtd) T = condensate temperature calculated
T
Deg C
Design CW flow Design CW flow Circulating water temperature rise
Qcw Qcw dT
TPH kg/hr Deg C
22222 22222000 9.01425972
Actual with HRSG 33 42.0 46.4 600.7 358231 13.4 4.39 8.071
Converted unit Deg F 91.4 Deg F 107.62567 Deg F 115.52 BTU/lb 1081.3 BTU/lb 789764.3 Deg F Deg F Deg F
35.6 43.5 50.26355986 612 258900
24.12 7.89 14.527
14.66355986 6.763559863 10.209
3071.5
3071.5
198566522.7 55157 230727460 9307.5 Selected surface area Computed LMTD
145433564.4 40398 168988792 5389.1 9000 6.113147481 Deg C
ln(dT1/dT2) (dT1/dT2) T=
0.773816137 2.168023964 50.26355986
CW flow at this condition
22222 TPH 22222000 6.544575842
7.9
Actual condition 33.0 #DIV/0! #DIV/0! 600.7 361320 #DIV/0! #DIV/0! #DIV/0! 3071.50 #DIV/0! #DIV/0! #DIV/0! #DIV/0! 9000 #DIV/0! #DIV/0! #DIV/0! #DIV/0! 22222 22222000 #DIV/0!
Sl no
Description 1 HP steam enthalpy IP steam enthalpy CRH HRSG IP steam HRH steam enthalpy LP steam enthalpy (HRSG outlet) LP exhaust enthalpy Additional power output from HTP IP/LP turbine power loss LP turbine power loss
Unit
kW kW kW
1 HP steam enthalpy IP steam enthalpy CRH HRSG IP steam HRH steam enthalpy LP steam enthalpy (HRSG outlet) LP exhaust enthalpy HPT loss IP/LP turbine power loss Total power loss Present load on stem turbine at 264.3 TPH HP steam flow Power loss due to short fall in HP steam Permanent power loss due to some minor mistake in HBD Steam turbine rating
Value 3543 3193 3054 3609 3037 2515 0 533.0111 53.65
3543 3193 3054 3609 3037 2515 kW kW kW
1797.639 5618.906 7416.544 119400 7417
MW
587 127.40
HP steam flow IP steam flow LP steam flow
HTC HBD 282.79 45.56 34.57
TBW HBD 282.79 42 34.2
HP steam flow IP steam flow LP steam flow
282.79 45.56 34.57
264.3 42 34.2
Short fall 0 3.56 0.37
18.49 3.56 0.37
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Description Atmospheric pressure Wet bulb temperature Dry bul tempearture KAV/L (for cooling tower) Design air flow through coling tower Design water flow through cooling tower COC Drift loss Make-up water temperture water inlet height Fan TTL head in Inch of H2O Design cooling tower approach Design L/G ratio Tube OD Number of Tube es Tube count per Active tube length per Cleanness factor Heat rejected
Description Atmospheric pressure Wet bulb temperature Dry bul tempearture KAV/L (for cooling tower) Design air flow through coling tower Design water flow through cooling tower COC Drift loss Make-up water temperture water inlet height Fan TTL head in Inch of H2O Design cooling tower approach Design L/G ratio Tube OD Number of Tube es Tube count per Active tube length per Cleanness factor Heat rejected
Unit 1 PSIA Deg F Deg F
Unit 2 Kg/cm2 Deg C Deg C
10^3 x CFM GPM % Deg F Ft Inch Of H2O Deg F
Mbtu/hr
Unit 1 PSIA Deg F Deg F
% Deg C M mm of H2O Deg C
1 439.17888 90 787
Unit 2 Kg/cm2 Deg C Deg C
10^3 x CFM GPM % Deg F Ft Inch Of H2O Deg F
Mbtu/hr
14.69594 80.6 104 1.2172 8154.816 109120 5 0.01 86 31.16 0.5 10.8 1.697
% Deg C M mm of H2O Deg C
1 439.17888 90 787
Corrected condition 14.69594 80.6 104 1.2172 8154.816 87987 5 0.01 86 31.16 0.5 10.8 1.697
Sl No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Description Atmospheric pressure Wet bulb temperature Dry bul tempearture KAV/L (for cooling tower) Design air flow through coling tower Design water flow through cooling tower COC Drift loss Make-up water temperture water inlet height Fan TTL head in Inch of H2O Design cooling tower approach Design L/G ratio Tube OD Number of Tube es Tube count per Active tube length per Cleanness factor Heat rejected
Unit 1 PSIA Deg F Deg F
Unit 2 Kg/cm2 Deg C Deg C
10^3 x CFM GPM % Deg F Ft Inch Of H2O Deg F
Mbtu/hr
% Deg C M mm of H2O Deg C
1 439.17888 90 787
Actual condition 14.69594 80.6 104 1.2172 8154.816 87987 5 0.01 86 31.16 0.5 10.8 1.697
1.033227 27 40
30 9.5 6
107.6 91.4 80.6 10.8
42 33 27 6
39 3.888889
230251573 KCAL/HR
Corrected condition 1.033227 27 40
30 9.5 6
40 4.444444 0.555556 41 5 0.555556
Actual condition 1.033227 27 40
30 9.5 6
Sl No
Description
1 2
Present STG load Present GTG load
3
Degrdation of GT for 7 months of operation based on GT correction curve
Unit MW 118 233 4
HRSG load may achieve if GT can run at higher load without degradation shall be as per HRSG design figure. 4
HP steam flow will match with design value and we can achieve addition power out put from HPT.
2.3
5
Additional power output form IPT and LPT
4.1
6 7
Power loss for reduction of condenser vacuum from 84 to 94 mmHg STG total load can be achieve after all the necessary corrections
2.39 126.79
8
Contractual pemanent loss
1.41
9
STG permanent loss for condenser under size
10
Total load can be achieve considering GTG degradation factor
363.79
Power considering un-recoverable loss due to design mistake
366.2
1
Remarks
Degradation after 7 - 8 months of operation of GT
After fixing HPT problem. HTC scope of supply After fixing HPT problem. HTC scope of supply After fixing the CW system, CW pumps, CT and condenser
Un-recoverable Un-recoverable, as condenser is under size
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