Calcium carbonate fouling is typically encountered in a cooling-water circulating system. An experimental program is initiated to study fouling growth law (s) as well as the basic mechanism of calcium carbonate (CaCO3) scaling. After a brief description of the experimental apparatus and procedure for calculating fouling resistance, we present the deposition data in terms of fouling resistance as a function of time taken at different sections of the tube. In addition, the randomness of fouling growth is illustrated by repeating the experiments several times under the same thermal-hydraulic conditions. The results are presented in terms of a set of sample functions and their associated probability density functions at various levels of fouling. In addition, basic mechanism of CaCO3 scale formation is also explained through Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray Spectroscopy (EDX).
Issue Section:
Heat Exchangers
1.
Ahmad
M.
Sheikh
A. K.
1984
, “Bernstein Reliability Model: Derivation and Estimation of Parameters
,” Reliability Engineering
, Vol. 8
, No. 6
, pp. 131
–148
.2.
Bejan, A., 1993, Heat Transfer, John Wiley & Sons Inc., New York.
3.
Bockris, J. O. M., and Reddy, A. K. N., 1970, Modern Electrochemistry, Vol. 2, Pleum Press, New York.
4.
Bott, T. R., 1995, Fouling of Heat Exchangers, Elsevier Science Publishers Ltd., Amsterdam.
5.
Chan
S. H.
Ghassemi
K. F.
1991
, “Analytical Modeling of Calcium Carbonate Deposition for Laminar Falling Films and Turbulent Flow in Annuli: Part I—Formulation and Single-Species Model; Part II—Multi-Species Model
,” ASME JOURNAL OF HEAT TRANSFER
, Vol. 113
, pp. 735
–746
.6.
Chamra
L. M.
Webb
R. L.
1994
, “Modeling Liquid-Side Particulate Fouling in Enhanced Tubes
,” International Journal of Heat and Mass Transfer
, Vol. 37
, No. 4
, pp. 571
–579
.7.
Coates
K. E.
Knudsen
J. G.
1980
, “Calcium Carbonate Scaling Characteristics of Cooling Tower Water
,” ASHRAE Transactions
, Vol. 86
, Part 2, pp. 68
–91
.8.
Epstein, N., 1981, “Fouling in Heat Exchangers,” Fouling of Heat Transfer Equipment, E. F. C. Somerscales and J. G. Knudsen, eds., Hemisphere, Washington, D.C., pp. 701–743.
9.
Hasson
D.
Avriel
M.
Resnick
W.
Rozenman
T.
Windreich
S.
1968
, “Mechanisms of Calcium Carbonate Deposition on Heat Transfer Surfaces
,” Industrial and Engineering Chemistry Fundamentals
, Vol. 7
, No. 1
, pp. 59
–65
.10.
Hasson, D., 1981, “Precipitation Fouling,” Fouling of Heat Transfer Equipment, E. F. C. Somerscales and J. G. Knudsen, eds., Hemisphere, Washington, D.C., pp. 527–568.
11.
Haq, M. U., 1995, Reliability-Based-Maintenance Strategies for Heat-Transfer Equipments Subject to Fouling,” M.Sc. Thesis, King Fahd University of Petroleum and Minerals, Dhahran.
12.
Kapur, K. C., and Lamberson, L. R., 1977, Reliability in Engineering Design, John Wiley & Sons Inc., New York.
13.
Knudsen, J. G., 1990, “Fouling in Heat Exchangers,” Hemisphere Handbook of Heat Exchanger Design, Hemisphere, Washington, D.C.
14.
Lewis, E. E., 1995, Introduction to Reliability Engineering, John Wiley & Sons Inc., New York.
15.
Mann, N. R., Schafer, R. E., and Singpurwalla, N. D., 1974, Methods for Statistical Analysis of Reliability and Life Data, John Wiley & Sons Inc., New York
16.
Nancollas
G. H.
Reddy
M. M.
1971
, “The Crystallization of Calcium Carbonate. II. Calcite Growth Mechanism
,” Journal of Colloid and Interface Science
, Vol. 37
, pp. 824
–830
.17.
Perry, R. H., and Green, D. W., 1984, Perry’s Chemical Engineers’ Handbook, McGraw-Hill, New York.
18.
Shaik, M. N., 1990, “Reliable Life-Prediction Models for Various Material Damage Processes,” M.Sc. Thesis, King Fahd University of Petroleum and Minerals, Dhahran.
19.
Sheikh
A. K.
Younas
M.
Ahmad
M.
1986
, “A Comparative Study of Reliability Models in Fatigue Life Prediction
,” Res Mechanica, International Journal of Structural and Materials Science
, Vol. 19
, pp. 189
–218
.20.
Somerscales, E. F. C., 1988, “Fouling,” Two-Phase Flow Heat Exchangers: Thermal-Hydraulic Fundamentals and Design, S. Kakac, A. E. Bergles, and E. O. Fernandes, eds., Kluwer Academic Publishers, Dordrecht, The Netherlands, pp. 407–460.
21.
Suitor
J. W.
Marner
W. J.
Ritter
R. B.
1976
, “The History and Status of Research in Fouling of Exchangers in Cooling Water Service
,” The Canadian Journal of Chemical Engineering
, Vol. 55
, pp. 374
–380
.22.
Taborek
J.
Aoki
T.
Ritter
R. B.
Palen
J. W.
Knudsen
J. G.
1972
a, “Fouling: The Major Unresolved Problem in Heat Transfer
,” Chemical Engineering Progress
, Vol. 68
, No. 2
, pp. 59
–67
.23.
Taborek
J.
Aoki
T.
Ritter
R. B.
Palen
J. W.
Knudsen
J. G.
1972
b, “Predictive Methods for Fouling Behavior
,” Chemical Engineering Progress
, Vol. 68
, No. 7
, pp. 69
–78
.24.
Zubair
S. M.
Sheikh
A. K.
Shaik
M. N.
1992
, “A Probabilistic Approach to the Maintenance of Heat-Transfer Equipment Subject to Fouling
,” ENERGY
, Vol. 17
, No. 8
, pp. 769
–776
.
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