Heat transfer solutions Clean steam generators
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Sizing and selection Note: To meet the requirements of HTM 2010 and HTM 2031 it is recommended that the feedwater entering the generator is a minimum of 85 °C. We would recommend the use of the CSM-PD preheat and degasser system.
T1 Primary steam temperature
T2 Clean steam temperature
Sizing and selection example A CSM-K is required to generate 1000 kg/h clean steam @ 4.5 bar g ( T2 ) with
steam @ 9 bar g after the control valve ( T1 ). The water inlet temperature ( T3 ) is 30 °C From Table 1: The water corrective factor @ 30 °C = 1.1 Consequently, the steam load = 1000 kg/h (T2) x 1.1 = 1100 kg/h Table 1 Corrective factor for water inlet temperatures 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C 110 °C 120 °C 1.12 1.11 1.10 1.08 1.065 1.05 1.035 1.02 1.00 0.96 0.94 0.93 T3 Water inlet temperature
T1 (primary steam pressure) at 9 bar g = 180 °C T2 (clean steam pressure) at 4.5 bar g = 156 °C T1 - T2 = 24 °C
From steam tables:
From Table 2 select the unit: - Follow the T1 - T2 heading to 24 °C
- Follow the column downwards from 24 °C until you reach a figure either the same as the required steam load or larger. For this example it is 1198 kg/h. - Follow the line to the left hand side of the Table to select the correct unit for your application. - Model selected = CSM-K604
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Table 2 CSM-K sizing and selection in kg/h @ 20 °C water inlet temperature and 10 bar g primary steam pressure T1-T2 52 °C 37 °C 28 °C 26 °C 24 °C 20 °C 16 °C 12 °C 11 °C CSM-K401 403 278 219 202 184 149 110 75 63 CSM-K402 500 350 273 250 230 185 137 93 78 CSM-K403 571 397 308 285 262 211 156 105 88 CSM-K501 752 522 409 377 346 279 207 140 118 CSM-K502 936 652 509 469 431 347 256 173 146 CSM-K503 1 058 738 573 530 487 393 291 196 165 CSM-K601 1 400 974 760 701 645 519 385 259 219 CSM-K602 1 737 1 210 945 871 803 645 479 322 271 CSM-K603 1 976 1 372 1 069 985 907 730 540 364 307 CSM-K604 1 810 1 413 1 300 1 198 962 720 476 404 CSM-K702 2 512 1 887 1 470 1 355 1 246 1 003 743 501 422 CSM-K703 2 120 1 651 1 531 1 408 1 129 840 564 476 CSM-K704 2 700 2 178 2 017 1 844 1 489 1 109 743 625 CSM-K802 3 354 2 727 CSM-K803 3 063 2 390 2 206 2 030 1628 1 212 813 687 CSM-K804 3 604 3 145 2 885 2 632 2 139 1 592 1 062 901
10.1.13
TI-P486-08 TES Issue 2
Page 4 of 5
CSM-K High Capacity Clean Steam Generator
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