Abstract
This chapter is concerned with the key elements of steam-water two-phase flow in fossil-fired steam generators or boilers. Particular emphasis is placed upon the evaluation of large, coal-fired, high-pressure steam generators which are prevalent in electric utility power stations. This provides the framework for the common elements with unique characteristics of other steam generating systems treated as additions or exceptions. The boiler circuitry, furnace absorption, and general circulation evaluation are first reviewed. Then the key limiting criteria are addressed including instabilities, heat transfer with particular reference to critical heat flux, steam/water separation, and boiler drum. Factors affecting other boiler designs are then outlined.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Singer, J. G., ed., Steam: Its Generation and Use, 39th ed., The Babcock & Wilcox Company, New York, 1978.
Singer, J. G., ed., Combustion: Fossil Power Systems, 3rd ed., Combustion Engineering Inc., Windsor, Conn., 1981.
El-Wakil, M. M., Powerplant Technology, pp. 79–172, McGraw Hill, New York, 1984.
Aschner, F. S., Planning Fundamentals of Thermal Power Plants, Wiley, New York, 1977.
Baumeister, T., Avallone, E. A., and Baumeister, III T., eds., Mark’s Standard Handbook for Mechanical Engineers, 8th ed., McGraw-Hill, New York, 1981.
Goodall, P. M., ed., The Efficient Use of Steam, IPC Science & Technology Press, Surry, United Kingdom, 1980.
Schlünder, E. V., et al., eds., Heat Exchanger Design Handbook, Vol. 2 & Vol. 3 (3.11), Hemisphere Publishing, New York, 1985.
Petukhov, B. S., “Heat Transfer & Friction in Turbulent Pipe Flow with Variable Physical Properties,” in Advances in Heat Transfer, J. P. Irvine and J. P. Hartnett, eds., Academic Press, New York, pp. 504–564, 1970.
Smith, V. L., “Coal Firing and Industrial Boiler Design — The Modern Approach,” ASME Paper 75-IPWR-14, 1975.
Barsin, J. A., “Boiler Design Considerations,” Proc. Coal Combustion Technology Conf., Pasadena, Calif., February 5–7, 1979.
Fiveland, W. A., and Wessel, R. A., “Furmo: A Numerical Model for Predicting Performance of Three Dimensional Pulverized Fuel Fired Furnaces,” ASME Paper 86-HT-35, 1986.
Scruton, B., Gibb, J., and Chojnowski, B., “Conventional Power Station Boilers: Assessment of Limiting Thermal Conditions for Furnace-Wall Tubes,” CEGB Research, pp. 3–11., April 1985.
Hottel, H. C., and Sarofim, A. F., Radiative Transfer, McGraw-Hill, New York, 1967.
So, R. M. C., Whitelaw, J. H., and Mongia, H. C., eds., Calculation of Turbulent Reactive Flows, American Society of Mechanical Engineers, New York, 1986.
Gibb, J., “Furnace Performance Prediction,” in Calculations of Turbulent Reactive Flows, R. M. C. So, et al., eds, pp. 11–25, American Society of Mechanical Engineers, New York, 1986.
Pai, B. R., Michelfelder, S., and Spalding, D. B., “Prediction of Furnace Heat Transfer With a Three-Dimensional Mathematical Model,” Int’l. J. of Heat Mass Transfer, Vol. 21, pp. 571–580, 1978.
Fiveland, W. A., Cornelius, D. K., and Oberjohn, W. J., “COMO — A Numerical Model for Predicting Furnace Performance in Axisymmetric Geometries,” ASME Paper 84-HT-103, 1984.
Wiener, M., “The Latest Developments in Natural Circulation Boiler Design,” Proc. of the American Power Conf., Vol. 39, pp. 336–348, 1977.
Kitto, J. B., “Inlet Effect Induced ‘Upstream’ Critical Heat Flux,” Heat Transfer 1986, Hemisphere Publishing, Washington, D.C., pp. 2367–2375, 1966.
Collier, J. G., “Introduction to Two-Phase Flow Problems in the Power Industry,” in Two-Phase Flow and Heat Transfer in the Power & Process Industries, A. E. Bergles, et al., eds., Hemisphere Publishing, Washington, D.C., pp. 573–579 and pp. 226–255, 1981.
Chisholm, D., “Research Note: Void Fraction During Two-Phase Flow,” J. Mech. Engng. Sci., Vol. 15, No. 3, pp. 225–236.
Chisholm, D., “Two-Phase Flow in Bends,” Int’l. J. Multiphase Flow, Vol. 6, pp. 363–367, 1980.
Chisholm, D., “Gas-Liquid Flow in Pipeline Systems,” appearing in Handbook of Fluids in Motion, N. P. Ceremisinoff and R. Gupta, eds., pp. 483–513, Butterworth Publishers, Boston, 1983.
Geiger, G. E., “Sudden Contraction Losses in Single and Two-Phase Flow,” PhD Thesis, University of Pittsburgh, 1964.
Bouré, J. A., Bergles, A. E., and Tong, L. S., “Review of Two-Phase Instability,” Nuclear Engineering & Design, Vol. 25, pp. 165–192, 1973.(Also appearing as ASME Paper 71-HT-42).
Bergles, A. E., “Instabilities in Two-Phase Systems,” appearing in Two-Phase Flow and Heat Transfer in the Power & Process Industries, A. E. Bergles, et al., eds., pp. 383–422, Hemisphere Publishing, Washington, D.C., 1981
Tong, L. S., Boiling Heat Transfer & Two-Phase Flow, John Wiley & Sons Inc., New York, pp. 201–217, 1965.
Butterworth, D., and Hewitt, G. F., eds., Two-Phase Flow and Heat Transfer, pp. 343–393, Oxford University Press, Oxford, United Kingdom, 1978.
M. Ledinegg, “Instability of Flow During Natural and Forced Circulation,” Die Warme, Vol. 61, No. 8, 1938, (AEC-tr-1861, 1954).
Gurgenci, H., Yildirim, T., Kakac, S., and Veziroglu, T. N., “Pressure Drop and Density Wave Thresholds in Boiling Channels,” ASME Paper 86-WA/HT-73, 1986.
Nakanishi, S., and Kaji, M., “An Approximation Method for Construction of a Stability Map of Density Wave Oscillations,” Nuclear Engineering & Design, Vol. 95, pp. 55–64, 1986.
Friedly, J. C., Akinjiola, P. O., and Robertson, J. M., “Flow Oscillations in Boiling Channels,” AIChE Symposium Series No. 189, Vol. 75, pp. 204–217, 1979.
Jens, W. H., and Lottes, P. A., “Analysis of Heat Transfer Burnout, Pressure Drop and Density Data for High Pressure Water,” Report ANL-4627, US Government, 1951.
Thorn, J. R. S., Walker, W. M., Fallon, T. A., and Reising, G. F. S., “Boiling in Subcooled Water During Flow Up Heated Tubes or Annuli,” paper presented at the Symposium on Boiling Heat Transfer in Steam Generating Units and Heat Exchangers, Manchester, U.K., IMechE Paper No. 6, Sept. 1965.
Davis, E. J., and Anderson, G. H., “The Incipience of Nucleate Boiling in Forced Convection Flow,” AIChE Journal, Vol. 12, No. 4, pp. 774–786, 1966.
Chen, J. C., “Correlation for Boiling Heat Transfer to Saturated Fluids in Convective Flow,” Industrial Eng. Chem. Proc. & Pes. Dev., Vol. 5, pp. 322–329, 1966.
Elelstein, S., Perez, A. J., and Chen, J. C., “Analytical Representation of Convective Boiling Functions,” AIChE Journal, Vol. 30, pp. 840–841, 1984.
Scruton, B., and Chojnowski, B., “Post Dryout Heat Transfer for Steam Water Flowing in Vertical Tubes at High Pressure,” Heat Transfer 1982, Hemisphere Publishing, Washington, D.C., 1982.
Groenveld, D. C., and Delorme, G. G. J., “Prediction of Thermal Nonequilibrium in Post Dryout Regime,” Nucl. Eng. and Design, Vol. 36, pp. 17–26, 1976.
Kimber, G. R., and Sutton, C., “Comparison of Post Dryout Heat Transfer Correlations With Experimental Data,” Report AEEW-R1266, 1979.
Hewitt, G. F., “Critical Heat Flux in Flow Boiling,” Heat Transfer 1978, Vol. 6, Hemisphere Publishing, Washington, D.C., pp. 143–171, 1578.
Butterworth, D., and Shock, R. A. W., “Flow Boiling,” Heat Transfer 1982, Vol. 1, Hemisphere Publishing, Washington, D.C., pp. 11–30, 1982.
Katto, Y., “Critical Heat Flux in Boiling,” Heat Transfer 1986, Vol. 1, Hemisphere Publishing, Washington, D.C., pp. 171–180, 1986.
Boyd, R. D, “Subcooled Flow Boiling Critical Heat Flux and Its Application to Fusion ENergy Components, Parts I & II,” Fusion Technology, Vol. 7, pp. 7–52, Jan. 1985.
Katto, Y., “Critical Heat Flux in Forced Convective Flow,” Proc. of the ASME-JSME Thermal Engineering Conf., Vol. 3, pp. 1–10, American Society of Mechanical Engineers, New York, 1983.
Tong, L. S., Boiling Crisis & Critical Heat Flux, US Atomic Energy Commission (TID-25887), Washington, D.C., 1972.
Collier, J. G., Convective Boiling & Condensation, 2nd Ed., pp. 236–300, McGraw Hill — United Kingdom, London, 1980.
Tong, L. S., and Hewitt, G. F., “Overall Viewpoint of Flow Boiling CHF Mechanisms,” ASME Paper 72-HT-54, 1972.
Bergles, A. E., “Burnout in Boiling Heat Transfer Part II: Subcooled and Low Quality Forced Convection System,” Nuclear Safety, Vol. 20, pp. 671–689, 1979.
Bergles, A. E., “Burnout in Boiling Heat Transfer Part III: High Quality Systems,” Nuclear Safety, Vol. 20, pp. 671–689, 1979.
Watson, G. B., Lee, R. A., and Wiener, M., “Critical Heat Flux in Inclined and Vertical Smooth and Ribbed Tubes,” Proc. of 5th Int. Heat Transfer Conf., Vol. IV, pp. 275–279, 1974.
Kitto, J. B., and Wiener, M., “Effects of Nonuniform Circumferential Heating and Inclination on Critical Heat Flux in Smooth and Ribbed Bore Tubes,” Heat Transfer 1982, Vol. 4, pp. 297–302, Hemisphere Publishing Corp., Washington, D.C., 1982.
Groenveld, D. C., and Rousseau, J. C., “CHF and Post-CHF Heat Transfer: An Assessment of Prediction Methods and Recommendations for Reactor Safety Codes,” Proc. of the NATO Advanced Research Workshop on the Advances in Two-Phase Flow and Heat Transfer, S. Kakac and M. Ishii, eds., Martinus Nijhoff Publishers, The Hague, Netherlands, 1983.
Groenveld, D. C., Cheng, S. C., and Doan, T., “1986 AECL-UO Critical Heat Flux Lookup Table,” Heat Transfer Engineering, Vol. 7, Nos. 1–2, pp.46–62, 1986.
Katto, Y., and Ohno, H., “An Improved Version of the Generalized Correlation of Critical Heat Flux for the Forced Convective Boiling in Uniformly Heated Vertical Tubes,” Int. J. Heat Mass Transfer, Vol. 27, No. 9, pp. 1641–1648, 1984.
Shah, M. M., “A Generalized Graphical Method for Predicting CHF in Uniformly Heated Vertical Tubes,” Int. J. Heat Mass Transfer, Vol. 22, pp. 557–568, 1979.
Belyakov, I. I., Smirnov, S. I., and Romanov, D. F., “Investigation of Deterioration in the Heat Transfer in Uniformly Heated Large Diameter Tubes During Vertical Motion of the Heat Transfer Medium,” Energomashinostroenie, No. 3, pp. 10–13, 1983
Chojnowski, B., and Wilson, P. M., “Critical Heat Flux for Large Diameter Steam Generator Tubes With Circumferential Variable and uniform Heating,” Proc. 5th Int’l Heat Transfer Conf., Vol. IV, pp. 260–262, 1974.
Bowring, R. W., “A Simple But Accurate Round Tube, Uniform Heat Flux Dryout Correlation Over Pressure Range 0.7–17.0 MN/m2 (100–2500 psia),” AEEW-R789, 1972.
Bowring, R. W., “Tabular Data for Calculating Burnout When Boiling Water in Uniformly Heated Round Tubes,” Teploenergetica, Vol. 23, No. 9, pp. 90–92, 1976: translation appearing in Thermal Engineering, pp. 77–79, Sept. 1977.
Carsen, W. R., and Williams, H. K., “Method of Reducing Carryover and Reducing Pressure Drop Through Steam Generators,” EPRI Report NP-1607, Electric Power Research Institute, Palo Alto, Calif., 1980.
Carter, H. R., and Prueter, W. P., “Evaluation and Correlation of the Effects of Operating Conditions on the Moisture Carryover Performance of Centrifugal Steam Water Separators,” Proc. Symposium on Polyphase Flow and Transport Technology, American Society of Mechanical Engineers, New York, 1980.
Eaton, A. M., Prueter, W. P., and Wall, J. R., “A Study of Geometric Scaling of Curved-Arm Primary Steam-Water Separators,” Heat Transfer-Denver 1985, AIChE Symposium Series No. 245, 1985.
Millington, B. C., “A Background to Cyclonic Separation of Steam From Water in the Power Generation Industry,” Report No. ME/81/18, Dept. of Mech. Engng., Univ. of Southampton, Southampton, United Kingdom, August 1981.
Coulter, E., “Moisture Separation and Steam Washing,” Chapter No. 10 in Water Technology for Thermal Power Systems, P. Cohen, ed., American Society or Mechanical Engineers, New York, pp. 10–1 to 10–43 (in publication).
Gardner, G. C., Crow, I. G., and Neller, P. H., “Carry-Under Performance of Drums in High Pressure Circulation Boilers,” Proc. Institute of Mechanical Engineers, Vol. 187, No. 14, pp. 207–214, 1973.
Thomas, R. M., “Rules for Modelling the Steady State Carry-Under Performance of Boiler Drums Using Freon-12,” ASME Special Publication HTD Vol. 14, American Society of Mechanical Engineers, New York, pp. 27–36, 1980.
Cohen, P., “A Review of Soviet Contributions to the Field of Heat & Mass Transfer Effects in Two-Phase Flow on Clean and Porous Deposit Boundary Layers, and Solute Equilibrium in the Steam Water System, as Applied to the Power Cycle,” Report to the National Science Foundation (PO No. 80-SP-0649), April 1980.
Cohen, P., “Chemical Thermohydraulics of Steam Generating Systems,” Nuclear Technology, Vol. 55, pp. 105–116, Oct. 1981.
Macbeth, R. V., “Fouling in Boiling Water Systems,” appearing in Two-Phase Flow & Heat Transfer, D. Butterworth and G. F. Hewitt, eds., pp. 323–342, Oxford University Press, Oxford, United Kingdom, 1978.
Haller, K. H., Mravich, N. J., and Seifert, J. W., “Nature and Behavior of Corrosion Products in Once-Through Boilers,” Materials Protection and Performance, pp. 27–31, Aug. 1971.
Haller, K. H., “Water Treatment for High Pressure Drum Type Boilers,” Babcock & Wilcox Company Technical Brochure BR-998, 1973.
Asakura, Y., et al., “Deposition of Iron Oxide in Heated Surfaces in Boiling Water,” Nuclear Science & Engineering, Vol. 67, pp. 1–7, 1978.
Iwahori, T., et al., “Role of Surface Chemistry in Crud Deposition on Heat Transfer Surface,” Corrosion-NACE, Vol. 35, No. 8, pp. 345–350, Aug. 1979.
Iwahori, T., “Optimization of Chemical Cleaning Interval for Supercritical Boilers,” CRIEPI Report E280003, Central Research Institute of Electric Power Industry, Tokyo, January 1981.
Haller, K. H., Lee, R. A., and Slotnik, J. S., “Heat Transfer & Friction Characteristics of Porous Magnetite Layers in Once-Through Boilers,” ASME Technical Paper 71-WA/HT-45, 1971.
Styrikovich, M., et al., “Influence of Crude Deposits on Heat & Mass Transfer in Steam Generating Channels,” appearing in Two-Phase Momentum, Heat & Mass Transfer in Chemical, Process, and Energy Engineering Systems, F. Durst, et al., eds., pp. 549–560, Hemisphere Publishing, Washington, D.C., 1979.
Macbeth, R. V., Trenberth, R., and Wood, R. W., “An Investigation Into the Effect of ‘Crud’ Deposits on Surface Temperature, Dryout, and Pressure Drop With Forced Convection Boiling of Water at 69 Bar in an Annular Channel,” UK AEE Report AEEW-R705, 1971.
Macbeth, R. V., “Boiling on Surfaces Overlayed With a Porous Deposit: Heat Transfer Rates Obtainable by Capillary Action,” UK Atomic Energy Establishment Report AEEW-R711, June 1971.
Cohen, P., and Taylor, G. R., Journal of Heat Transfer, Vol. 89, pp. 242, 1967.
Rassokhin, N. G., Melnikov, V. N., and Balabanov, E. D., “Influence of Iron Oxide Deposits on Critical Heat Flux in Water Boiling,” Teploenergetika, Vol. 25, No. 6, pp. 14–16, 1978.
Richter, R., et al., “Magnetite Formation and Pressure Loss Increase in a Benson Boiler,” ASME Paper 71-WA/HT-44, 1971.
Kitto, J. B., “Effect of Contaminants on Critical Heat Flux at Low Pressures,” Chemical Engineering Communications, Vol. 4, Nos. 3 and 4, pp. 279–296, 1980.
Yusufova, V. D., et al., “Burnout When Boiling Salt Water in Tubes,” Teploenergetika, Vol. 21, No. 10, p. 79–84.
Midler, L. S., et al., “Effect of Sodium Chloride Addition on Boiling Crisis in Up and Down Flow of Water,” Heat Transfer-Soviet Research, Vol. 9, No. 2, pp. 1–4, 1977.
Goldstein, P., “A Research Study on Internal Corrosion of High Pressure Boilers — Final Report,” J. Engng for Power (ASME), pp. 75–101, April 1969.
Pocock, F. J., and Lux, J. A., “Waterside Corrosion in Fossil Fired Steam Generators,” Proc. of Corrosion 79, National Association of Corrosion Engineers, 1979.
Bates, A. J., Darvill, M. R., and Pearce, W. G., “Waterside Corrosion and Its Prevention in Inclined Tubes in the Fawley/Pembroke Power Station Boilers,” Proc. of the American Power Conf., Vol. 40, pp. 943–951, 1978.
Pritchard, A. M., Peakall, K. A., and Smart, E., “Salt Behavior During Evaporation in a Miniature Once-Through High Pressure Boiler Loop,” paper presented at the ASME Winter Annual Meeting, 1982.
Golden, J. L., “Design Features of the TVA/EPRI 160-MW AFBC Demonstration Project,” Proc. of the American Power Conf., Vol. 48, pp. 62–74, 1986.
Styrikovich, M. A., and Miropolski, Z. L., “Stratification in Vapor-Water Mixture Flow at High Pressures in the Heated Horizontal Tube,” Dokl. Akad Nauk SSR, Vol. 71, No. 2, 1950. (AEC Translation KGRL-T.R4)
Shah, M. M., “A New Correlation for Heat Transfer During Boiling Flow Through Tubes,” ASHRAE Transactions, Vol. 82, No. 2, pp. 66–86, 1976.
Bar-Cohen, A., Ruder, Z., and Griffith, P., “Development and Validation of Boundaries for Circumferential Isothermality in Horizontal Tubes,” Int’l. J. Multiphase Flow, Vol. 12, No. 1, pp. 63–77, 1986.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1988 Kluwer Academic Publishers
About this chapter
Cite this chapter
Kitto, J.B., Albrecht, M.J. (1988). Elements of Two-Phase Flow in Fossil Boilers. In: Kakaç, S., Bergles, A.E., Fernandes, E.O. (eds) Two-Phase Flow Heat Exchangers. NATO ASI Series, vol 143. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2790-2_15
Download citation
DOI: https://doi.org/10.1007/978-94-009-2790-2_15
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7755-2
Online ISBN: 978-94-009-2790-2
eBook Packages: Springer Book Archive