Experimental measurement of heat transfer coefficient and mass of deposited CaSO4 in subcooled flow boiling condition

Document Type: Research Paper

Authors

1 Department of Mechanical Engineering, Dezful Branch, Islamic Azad University, Dezful, Iran

2 Jundi-Shapur University of Technology, Dezful, Iran

3 Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran

Abstract

Fouling is a common, fundamental and costly problem in heat transfer systems, which reduces thermal efficiency of equipment, increases the energy loss and causes strong damage to the heat transfer equipment in various industries. The main causes of fouling on the heat transfer surfaces are salts with inverse temperature-solubility in the fluid which calcium sulfate is one of the most important of them. In this paper, the effect of calcium sulfate fouling on the heat transfer coefficient in subcooled flow boiling was investigated. The fouling mass of calcium sulfate on the heat transfer surface was also calculated. In the experiments carried out in this study, flow rate (2.5–11.5 l/min), solution concentration (1.75–2.2 g/l), bulk fluid temperature (55–75 ℃), and heat flux (8-95 kW/m2) were variables at the mentioned ranges. The results showed that the maximum deviation in the uncertainty analysis was related to the difference between the inlet and outlet temperature of the fluid, followed by the temperature difference between the wall temperature and the bulk fluid temperature. Also, the analysis of the experimental data revealed that increasing the salt concentration, the bulk temperature, and the heat flux of the solution, the mass of deposited calcium sulfate on the heat transfer surface increases with time, resulting in a decrease in the heat transfer coefficient. Careful analysis of the experimental data also showed that the solution concentration has more important role than the heat flux and the fluid bulk temperature in fouling formation.

Keywords

Main Subjects

[1]           D. Aquilano, F. Otálora, L. Pastero, J. M. García-Ruiz, C. o. Materials, Three study cases of growth morphology in minerals: halite, calcite and gypsum, Progress in Crystal Growth, Vol. 62, No. 2, pp. 227-251, 2016.

[2]           G. Van Rosmalen, P. Daudey, W. Marchee, An analysis of growth experiments of gypsum crystals in suspension, Journal of Crystal Growth, Vol. 52, pp. 801-811, 1981.

[3]           J. Moghadasi, M. Jamialahmadi, H. Müller-Steinhagen, A. Sharif, Scale formation in oil reservoir and production equipment during water injection (Kinetics of CaSO4 and CaCO3 crystal growth and effect on formation damage), in Proceeding of, Society of Petroleum Engineers, pp.

[4]           A. Helalizadeh, H. Müller-Steinhagen, M. Jamialahmadi, Mixed salt crystallisation fouling, Chemical Engineering and Processing: Process Intensification, Vol. 39, No. 1, pp. 29-43, 2000.

[5]           A. Helalizadeh, H. Müller-Steinhagen, M. Jamialahmadi, Mathematical modelling of mixed salt precipitation during convective heat transfer and sub-cooled flow boiling, Chemical Engineering Science, Vol. 60, No. 18, pp. 5078-5088, 2005.

[6]           S. N. Kazi, G. G. Duffy, X. D. Chen, Fouling and fouling mitigation on heated metal surfaces, Desalination, Vol. 288, pp. 126-134, 2012.

[7]           M. H. Maddahi, M. S. Hatamipour, M. Jamialahmadi, Experimental study of calcium sulfate fouling in a heat exchanger during liquid-solid fluidized bed with cylindrical particles, International Journal of Thermal Sciences, Vol. 125, pp. 11-22, 2018.

[8]           M. R. Malayeri, M. R. Jalalirad, Mitigation of crystallization fouling in a single heated tube using projectiles of different sizes and hardness, Heat Transfer Engineering, Vol. 35, No. 16-17, pp. 1418-1426, 2014.

[9]           R. Steinhagen, H. Müller-Steinhagen, K. Maani, Problems and costs due to heat exchanger fouling in New Zealand industries, Heat transfer engineering, Vol. 14, No. 1, pp. 19-30, 1993.

[10]         Y. Lv, M. Y. Liu, L. F. Hui, A. N. Pavlenko, A. S. Surtaev, V. S. Serdyukov, Heat Transfer and Fouling Rate at Boiling on Superhydrophobic Surface with TiO2 Nanotube-Array Structure, Journal of Engineering Thermophysics, Vol. 28, No. 2, pp. 163-176, 2019.

[11]         Q. Zhenhua, C. Yongchang, M. A. Chongfang, Experimental study of fouling on heat transfer surface during forced convective heat transfer, Chinese Journal of Chemical Engineering, Vol. 16, No. 4, pp. 535-540, 2008.

[12]         A. Al-Janabi, M. R. Malayeri, O. Badran, Performance of shot peened surfaces subject to crystallization fouling, International Journal of Thermal Sciences, Vol. 111, pp. 379-389, 2017.

[13]         L.-C. Wang, S.-F. Li, L.-B. Wang, K. Cui, Q.-L. Zhang, H.-B. Liu, G. Li, Relationships between the characteristics of CaCO3 fouling and the flow velocity in smooth tube, Experimental Thermal and Fluid Science, Vol. 74, pp. 143-159, 2016.

[14]         B. O. Hasan, E. A. Jwair, R. A. Craig, The effect of heat transfer enhancement on the crystallization fouling in a double pipe heat exchanger, Experimental Thermal and Fluid Science, Vol. 86, pp. 272-280, 2017.

[15]         T. Hou, Y. Chen, Z. Wang, C. Ma, Experimental study of fouling process and antifouling effect in convective heat transfer under ultrasonic treatment, Applied Thermal Engineering, Vol. 140, pp. 671-678, 2018.

[16]         A. Zangeneh, A. Vatani, Z. Fakhroeian, S. M. Peyghambarzadeh, Experimental study of forced convection and subcooled flow boiling heat transfer in a vertical annulus using different novel functionalized ZnO nanoparticles, Applied Thermal Engineering, Vol. 109, pp. 789-802, 2016.

[17]         D. A. Skoog, D. A. West, F. J. Holler, Analytical Chemistry, 6th ed, Sounders College Publishing 1992.

[18]         J. Fernández-Seara, F. J. Uhia, J. Sieres, Laboratory practices with the Wilson plot method, Experimental Heat Transfer, Vol. 20, No. 2, pp. 123-135, 2007.

[19]         S. M. Peyghambarzadeh, A. Vatani, M. Jamialahmadi, Experimental study of micro-particle fouling under forced convective heat transfer, Applied Thermal Engineering, Vol. 29, No. 4, pp. 713-724, 2012.

[20]         M. M. Sarafraz, S. M. Peyghambarzadeh, Experimental study on subcooled flow boiling heat transfer to water–diethylene glycol mixtures as a coolant inside a vertical annulus, Experimental Thermal and Fluid Science, Vol. 50, pp. 154-162, 2013.

[21]         J. P. Holman, 2002, Heat Transfer-Si Units-Sie, Tata McGraw-Hill Education,

[22]         B. S. Massey, 2006, Mechanics of Fluids Taylor & Francis, 8ed.

[23]         S. M. Peyghambarzadeh, A. Vatani, M. Jamialahmadi, Application of asymptotic model for the prediction of fouling rate of calcium sulfate under subcooled flow boiling, Applied Thermal Engineering, Vol. 39, pp. 105-113, 2012.

[24]         R. J. Moffat, Using uncertainty analysis in the planning of an experiment, Journal of Fluids Engineering, Vol. 107, No. 2, pp. 173-178, 1985.

[25]         A. Vosough, S. M. Peyghambarzadeh, M. R. Assari, Influence of thermal shock on the mitigation of calcium sulfate crystallization fouling under subcooled flow boiling condition, Applied Thermal Engineering, pp. 114434, 2019.

[26]         M. S. Abd-Elhady, M. R. Jalalirad, M. R. Malayeri, Influence of injected projectiles on the induction period of crystallization fouling, Heat Transfer Engineering, Vol. 35, No. 3, pp. 232-245, 2014.

[27]         S. M. Peyghambarzadeh, N. Bahrami, Statistical analysis of calcium sulfate scaling under boiling heat transfer, Applied Thermal Engineering, Vol. 53, No. 1, pp. 108-113, 2013.

[28]         S. H. Najibi, H. Müller-Steinhagen, M. Jamialahmadi, Calcium sulphate scale formation during subcooled flow boiling, Chemical Engineering Science, Vol. 52, No. 8, pp. 1265-1284, 1997. 


Volume 50, Issue 2
December 2019
Pages 308-314
  • Receive Date: 24 September 2019
  • Revise Date: 25 October 2019
  • Accept Date: 26 October 2019