Convective flow boiling heat transfer in an annular space: N-heptane/water case in a bubbly sub-cooled flow

M. M. Sarafraz, H. Arya

Article ID: 714
Vol 3, Issue 2, 2020, Article identifier:33-46

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Abstract


The subcooled flow boiling heat transfer characteristics of n-heptane and water is conducted for an upward flow inside the vertical annulus with an inner gap of 30 mm, in different heat fluxes up to 132kW.m-2, subcooling max.:30C, flow rate: 1.5 to 3.5lit.min-1 under the atmospheric pressure. The measured data indicate that the subcooled flow boiling heat transfer coefficient significantly increases with increasing liquid flow rate and heat flux and slightly decreases with decreasing the subcooling level. Although results demonstrate that subcooling is the most effective operation parameter on onset of nucleate boiling such that with decreasing the subcooling level, the inception heat flux significantly decreases. Besides, recorded results from the visualization of flow show that the mean diameter of the bubbles departing from the heating surface decreases slightly with increasing the flow rate and slightly decreases with decreasing the subcooling level. Meanwhile, comparisons of the present heat transfer data for n-heptane and water in the same annulus and with some existing correlations are investigated. Results of comparisons reveal an excellent agreement between experimental data and those of calculated by Chen Type model and Gungor–Winterton predicting correlation.


Keywords


Annular Flow; Nucleate Flow Boiling; Subcooled; Pure Liquid; Convective; Heat Transfer

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References


Zeitoun O. Subcooled flow boiling and condensation (Ph.D. Thesis). Canada: McMaster University; 1994.

Hewitt GF, Kersey HA, Lacey PMC, et al. Burnout and nucleation in climbing film flow. International Journal of Heat and Mass Transfer 1965; 8: 793–814.

Barbosa JR, Hewitt GF, Richardson SM. High-speed visualization of nucleate boiling in vertical annular flow. International Journal of Heat and Mass Transfer 2003; 46: 5153–5160.

You H, Sheikholeslami R, Doherty WOS. Flow boiling heat transfer of water and sugar solutions in an Annulus. Wiley Inter Science 2004; 50(6): 1119-1128.

Peyghambarzadeh SM, Vatani A, Jamialahmadi M. Application of asymptotic model for the prediction of fouling rate of calcium sulfate under sub-cooled flow boiling. Applied Thermal Engineering 2012; 39: 105-113.

Ahmadi R, Nouri-Borujerdi A, Jafari J, et al. Experimental study of onset of subcooled annular flow boiling. Progress in Nuclear Energy 2009; 51: 361–365.

Kew PA, Cornwell K. Correlations for the prediction of boiling heat transfer in small-diameter channels. Applied Thermal Engineering 1997; 17: 705–715.

Lin S, Kew PA, Cornwell K. Two-phase heat transfer to a refrigerant in a 1 mm diameter tube. International Journal of Refrigeration 2001; 24(1): 51–56.

Kandlikar SG, Grande WJ. Evolution of micro channel flow passages–Thermo hydraulic performance and fabrication technology. Heat Transfer Engineering 2003; 24(1): 3–17.

Kandlikar SG. Boiling heat transfer with binary mixtures; low boiling in plain tubes. Journal of Heat Transfer 1998; 120: 388–394.

Chen JC. A correlation for boiling heat transfer to saturated fluids inconvective flow. Industrial & Engineering Chemistry Process Design and Development 1966; 5(3): 322-329.

Bergles AE, Lienhard VJH, Kendall GE, et al. Boiling and evaporation in small diameter channels. Heat Transfer Engineering 2003; 24: 18–40.

Celata GP, Cumo M, Setaro T. Forced convective boiling in binary mixtures. International Journal of Heat and Mass Transfer 1993; 36(13): 3299–3309.

Guerrieri SA, Talty RD. Proposed correlation of data for two-phasecomponent flow in pipes. Chemical Engineering Progress Symposium Series 1956; 52: 69–77.

Chang YS, Kim MS. Performance and heat transfer characteristics of hydrocarbon refrigerants in a heat pump system. International Journal of Refrigeration 2000; 23: 232–242.

Sivagnanam P, Balakrishnan AR, Varma YBG. On the mechanism of subcooled flow boiling of binary mixtures. International Journal of Heat and Mass Transfer 1994; 37: 681–689.

Ose Y, Kunugi T. Development of a boiling and condensation model on subcooled boiling phenomena. Energy Procedia 2011; 9: 605–618.

Lima RJ, Quibén JM, Thome JR. Flow boiling in horizontal smooth tubes: New heat transfer results for R-134a at three saturation temperatures. Applied Thermal Engineering 2009; 29: 1289–1298.

Huo X, Chen L, Tian YS, et al. Flow boiling and flow regimes in small diameter tubes. Applied Thermal Engineering 2004; 24: 1225–1239.

Salari E, Peyghambarzadeh SM, Sarafraz MM, et al. Boiling thermal performance of TiO2 aqueous nanofluids as a coolant on a disc copper block, Periodica Polytechnica. Chemical Engineering 2016; 60(2): 106.

Sarafraz MM. Nucleate pool boiling of aqueous solution of citric acid on a smoothed horizontal cylinder. Heat and Mass Transfer 2012; 48(4): 611–619.

Nakhjavani M, Nikkhah V, Sarafraz MM, et al. Green synthesis of silver nanoparticles using green tea leaves: Experimental study on the morphological, rheological and antibacterial behavior. Heat and Mass Transfer 2017; 53(10): 3201–3209.

Sarafraz M, Peyghambarzadeh S, Alavi Fazel S, et al. Nucleate pool boiling heat transfer of binary nano mixtures under atmospheric pressure around a smooth horizontal cylinder. Periodica Polytechnica: Chemical Engineering 2013; 57(1-2):71–77

Pourmehran O, Gorji TB, Gorji-Bandpy M, et al. Magnetic drug targeting through a realistic model of human tracheobronchial airways using computational fluid and particle dynamics. Biomechanics and Modeling in Mechanobiology 2016; 15(5): 1355–1374.

Zou X, Gong MQ, Chen GF, et al. Experimental study on saturated flow boiling heat transfer of R170/R290 mixtures in a horizontal tube. International Journal of Refrigeration 2010; 33: 371–380.

Lin PH, Fu BR, Chin Pan. Critical heat flux on flow boiling of methanol-water mixtures in a diverging micro-channel with artificial cavities. International Journal of Heat and Mass Transfer 2011; 54: 3156–3166.

Táboas F, Vallčs M, Bourouis M, et al. Assessment of boiling heat transfer and pressure drop correlations of ammonia/water mixture in a plate heat exchanger. International Journal of Refrigeration 2012; 35: 633–644.

Fernandez Seara J, Uhia FJ, Sieres J. Laboratory practices with the Wilson plot method. Experimental Heat Transfer 2007; 20: 123-135.

Kline SJ, McClintock FA. Describing uncertainties in single-sample experiments. Mechanical Engineering 1953; 75 (1): 3–12.

Joback KG. A unified approach to physical property estimation using multivariate statistical techniques (M.S. Thesis). Cambridge: Massachusetts Institute of Technology; 1984.

Spencer CF, Danner RP. Improved equation for prediction of saturated liquid density. Journal of Chemical & Engineering Data 1972; 17(2): 236–241.

Bruce E, Poling J, Prausnitz M, et al. The properties of gases and liquids, 5th ed. New York: The McGraw-Hill Companies; 2004. p. 10-11, 10-70.

Ruzicka V, Domalski ES. Estimation of the heat capacities of organic liquids as a function of temperature using group additives. Compounds of carbon, hydrogen, halogens, nitrogen, oxygen, and sulfur. Journal of Physical and Chemical Reference Data 1993; 22: 619–657.

Fernández-Seara J, Uhía FJ, Sieres J. Laboratory practices with the Wilsonplot method. Experimental Heat Transfer 2007; 20: 123–135.

Peyghambarzadeh SM, Sarafraz MM, Vaeli N, et al. Forced convective and subcooled flow boiling heat transfer to pure water and n-heptane in an annular heat exchanger. Annals of Nuclear Energy 2013; 53: 401–410.

Sarafraz MM, Peyghambarzadeh SM, Vaeli N. Subcooled flow boiling heat transfer of ethanol aqueous solutions in vertical annulus space. Chemical Industry & Chemical Engineering Quarterly 2012; 18(2): 315−327.

Sarafraz MM, Peyghambarzadeh SM. 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 2013; 50: 154–162.

Sarafraz MM, Peyghambarzadeh SM. Influence of thermodynamic models on the prediction of pool boiling heat transfer coefficient of dilute binary mixtures. International Communications in Heat and Mass Transfer 2012; 39(8): 1303–1310.

Biglarian M, Gorji MR, Pourmehran O, et al. H2O based different nanofluids with unsteady condition and an external magnetic field on permeable channel heat transfer. International Journal of Hydrogen Energy 2017; 42 (34): 22005–22014.

Tabassum R, Mehmood R, Pourmehran O, et al. Impact of viscosity variation on oblique flow of Cu–H2O nanofluid. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 2017; 232(5): 622–631.

Sarafraz MM, Peyghambarzadeh SM, Nucleate pool boiling heat transfer to Al2O3-water and TiO2-water nanofluids on horizontal smooth tubes with dissimilar homogeneous materials. Chemical and Biochemical Engineering Quarterly 2012; 26 (3): 199-206.

Sarafraz MM, Peyghambarzadeh SM, Alavifazel SA. Enhancement of nucleate pool boiling heat transfer to dilute binary mixtures using endothermic chemical reactions around the smoothed horizontal cylinder. Heat and Mass Transfer 2012; 48 (10): 1755–1765.

Sarafraz MM, Hormozi F. Forced convective and nucleate flow boiling heat transfer to alumnia nanofluids. Periodica Polytechnica Chemical Engineering 2014; 58 (1): 37–46.

Sarafraz MM, Hormozi F, Silakhori M. et al. On the fouling formation of functionalized and non-functionalized carbon nanotube nano-fluids under pool boiling condition. Applied Thermal Engineering 2016; 95: 433–444.

Sarafraz MM. Experimental investigation on pool boiling heat transfer to formic acid, propanol and 2-butanol pure liquids under the atmospheric pressure. Journal of Applied Fluid Mechanics 2013; 6 (1): 73–79.

Nakhjavani M, Nikkhah V, Sarafraz MM et al. Green synthesis of silver nanoparticles using green tea leaves: Experimental study on the morphological, rheological and antibacterial behavior. Heat and Mass Transfer 2017; 53 (10): 3201–3209.

Sarafraz MM, Nikkhah V, Madani SA, et al. Low-frequency vibration for fouling mitigation and intensification of thermal performance of a plate heat exchanger working with CuO/water nanofluid. Applied Thermal Engineering 2017; 121: 388–399.

Sarafraz MM, Hormozi F. Application of thermodynamic models to estimating the convective flow boiling heat transfer coefficient of mixtures. Experimental Thermal and Fluid Science 2014; 53: 70–85.

Sarafraz MM, Arya A, Nikkhah V. et al. Thermal performance and viscosity of biologically produced silver/coconut oil. Nanofluids Chemical and Biochemical Engineering Quarterly 2017; 30 (4): 489–500.




DOI: http://dx.doi.org/10.24294/ace.v3i2.714

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