2004 ASME Power Conference Multi-Pressure Surface Condenser Performance Evaluation - A Case Study Sunder Raj Presentation
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The document describes the key parameters of a three-zone once-through steam generator, including the cooling water flow rate, tube specifications, effective surface areas, heat transfer rates, and temperatures of each zone. It then shows calculated performance results across a range of circulation water inlet temperatures from 35 to 75 degrees Fahrenheit, indicating changes in generated power, pressures, heat loads, and cleanliness factors compared to predicted design values.
2004 ASME Power Conference Multi-Pressure Surface Condenser Performance Evaluation - A Case Study Sunder Raj Presentation
- 6. Description LP Zone IP Zone HP Zone Cooling Water Flow, GPM 246,460 246,460 246,460 Number of Tubes, NT 13,610 13,610 13,610 Tube Diameter D, in. 1.125 1.125 1.125 Tube Wall Thickness, BWG 18 18 18 Effective Tube Length L, ft. 29.982 33.458 36.367 Tube Material 90_10CuNi 90_10CuNi 90_10CuNi Number of Water Passes, NP 1 1 1 GPM/Tube at 1.0 fps, g 2.562 2.562 2.562 Water Velocity V, fps 7.01 7.01 7.01 Area Per Ft. of Length, m 0.2945 0.2945 0.2945 Effective Surface Area S, sq.ft. 120,172 134,105 145,724 Constant a 0.0591 0.0591 0.0591 Factor b 0.9 0.9 0.9 Cleanliness Factor, %CF 85 85 85
- 7. Length of Water Travel, Ft. Temperature, F Tinlp = 50.0 F Tinip = Toutlp = 61.36 F Tinhp = Toutip = 72.72 F TSlp = 83.47 F TSip = 88.90 F TShp = 97.04 F Touthp = 84.08 F TTDlp = 22.11 F Llp = 29.982 Lip = 33.458 Lhp = 36.357 TTDip = 16.18 F TRlp = 11.36 F TRip = 11.36 F TTDhp = 12.96 F TRhp = 11.36 F ITDlp = 33.47 F ITDip = 27.54 F ITDhp = 24.32 F Slp = 120,172 sq.ft. Sip = 134,106 sq.ft. Shp = 145,724 sq.ft. LMTDlp = 27.40 F Ulp = 425.13 btu/hr/sq.ft-F Qlp = 1.4 billion btu/hr Uip = 488.74 btu/hr/sq.ft-F LMTDip = 21.36 F Uhp = 532.36 btu/hr/sq.ft- F LMTDhp = 18.05 F Qip = 1.4 billion btu/ hr Qhp = 1.4 billion btu/ hr AVERAGE SATURATION TEMP. = 89.80 F LP SECTION IP SECTION HP SECTION
- 11. 35.00 246,460 1.363 1.354 1.368 11.06 10.99 11.10 0.904 0.942 1.146 85.00 85.00 85.00 638,922 40.00 246,460 1.368 1.355 1.361 11.10 10.99 11.05 0.957 1.046 1.299 85.00 85.00 85.00 638,941 45.00 246,460 1.373 1.356 1.357 11.14 11.00 11.01 1.034 1.175 1.482 85.00 85.00 85.00 638,583 50.00 246,460 1.376 1.357 1.356 11.17 11.01 11.00 1.135 1.331 1.701 85.00 85.00 85.00 637,533 55.00 246,460 1.381 1.361 1.356 11.66 11.49 11.44 1.294 1.569 2.045 85.00 85.00 85.00 634,711 60.00 246,460 1.386 1.366 1.360 11.69 11.52 11.47 1.454 1.800 2.361 85.00 85.00 85.00 631,093 65.00 246,460 1.391 1.372 1.365 11.74 11.58 11.52 1.647 2.073 2.730 85.00 85.00 85.00 626,060 70.00 246,460 1.397 1.380 1.373 11.79 11.64 11.59 1.878 2.393 3.156 85.00 85.00 85.00 619,585 75.00 246,460 1.405 1.390 1.383 11.85 11.73 11.67 2.152 2.767 3.641 85.00 85.00 85.00 611,755 CIRC. WATER INLET TEMP. Tinlp, F LP ZONE PRESS. PSlp, IN.HGA GEN. OUTPUT, KW HP ZONE PRESS. PShp, IN.HGA IP ZONE PRESS. PSip, IN.HGA LP ZONE CFlp, % IP ZONE CFip, % IP ZONE TRip, F HP ZONE TRhp, F HP ZONE CFhp, % LP ZONE TRlp, F CIRC. WATER FLOW RATE, GPM LP ZONE HEAT LOAD Qlp, 10 9 btu/hr IP ZONE HEAT LOAD Qip, 10 9 btu/hr HP ZONE HEAT LOAD Qhp, 10 9 btu/hr
- 16. 1856.63 1850.09 45.28 1.061 1.375 1.780 84.70 70.57 64.69 248,193 630,001 1850.00 1843.46 45.28 1.062 1.377 1.756 84.70 70.57 64.69 248,193 628,727 1850.00 1843.46 45.28 1.047 1.192 1.488 85.00 85.00 85.00 248,193 630,096 1850.00 1843.46 45.28 1.052 1.199 1.499 85.00 85.00 85.00 246,460 630,058 1856.38 1849.88 50.27 1.153 1.518 1.968 85.47 72.03 66.95 249,736 626,400 1850.00 1843.50 50.27 1.152 1.517 1.947 85.47 72.03 66.95 249,736 625,182 1850.00 1843.50 50.27 1.147 1.346 1.699 85.00 85.00 85.00 249,736 626,987 1850.00 1843.50 50.27 1.158 1.361 1.724 85.00 85.00 85.00 246,460 626,837 1856.76 1850.28 54.98 1.290 1.668 2.208 84.01 74.58 68.63 249,428 625,209 1850.00 1843.52 54.98 1.290 1.667 2.185 84.01 74.58 68.63 249,428 623,897 1850.00 1843.52 54.98 1.270 1.526 1.943 85.00 85.00 85.00 249,428 626,014 1850.00 1843.52 54.98 1.279 1.541 1.969 85.00 85.00 85.00 246,460 625,794 1856.66 1850.14 58.46 1.406 1.818 2.415 82.91 74.78 68.94 250,498 622,798 1850.00 1843.48 58.46 1.406 1.817 2.390 82.91 74.78 68.94 250,498 621,532 1850.00 1843.48 58.46 1.372 1.671 2.136 85.00 85.00 85.00 250,498 624,053 1850.00 1843.48 58.46 1.385 1.694 2.174 85.00 85.00 85.00 246,460 623,666 1855.82 1849.29 65.26 1.757 2.267 2.932 76.51 70.62 68.96 250,667 615,596 1850.00 1843.47 65.26 1.759 2.269 2.902 76.51 70.62 68.96 250,667 614,695 1850.00 1843.47 65.26 1.622 2.020 2.596 85.00 85.00 85.00 250,667 619,231 1850.00 1843.47 65.26 1.638 2.048 2.644 85.00 85.00 85.00 246,460 618,639 PREDICTED AT DESIGN CF PREDICTED AT DESIGN CF, GPM PREDICTED AT DESIGN CF PREDICTED AT DESIGN CF, GPM ACTUAL PERFORMANCE NORMALIZED PERFORMANCE PREDICTED AT DESIGN CF PREDICTED AT DESIGN CF, GPM ACTUAL PERFORMANCE NORMALIZED PERFORMANCE ACTUAL PERFORMANCE NORMALIZED PERFORMANCE PREDICTED AT DESIGN CF PREDICTED AT DESIGN CF, GPM LP ZONE PRESS., IN.HGA DESCRIPTION ACTUAL PERFORMANCE NORMALIZED PERFORMANCE HP ZONE CF, % CIRC. WATER FLOW, GPM GEN. OUTPUT, KW REACTOR CORE POWER, MWT NSSS THERMAL POWER, MWT IP ZONE PRESS., IN.HGA HP ZONE PRESS., IN.HGA LP ZONE CF, % IP ZONE CF, % COLD WATER TEMP. F ACTUAL PERFORMANCE NORMALIZED PERFORMANCE PREDICTED AT DESIGN CF PREDICTED AT DESIGN CF, GPM
- 17. 45.28 628,727 630,096 630,058 1,369 -38 1,331 50.27 625,182 626,987 626,837 1,805 -150 1,655 54.98 623,897 626,014 625,794 2,117 -220 1,897 58.46 621,532 624,053 623,666 2,521 -387 2,134 65.26 614,695 619,231 618,639 4,536 -592 3,944 Capacity Loss Due to CF & GPM, Kw Circ. Water Inlet Temp., F Normalized Gen. Output, Kw Pred. Gen. Output At Design CF, Kw Pred. Gen. Output At Design CF & GPM, Kw Capacity Gain Due to GPM, Kw Capacity Loss Due to CF, Kw