Heat transfer model of two-phase flow across tube bundle in submerged combustion vaporizer

doi:10.1016/j.cjche.2018.06.032

Abstract

Abstract: In order to optimize the design of the submerged combustion vaporizer (SCV), an experimental apparatus was set up to investigate the heat transfer character outside the tube bundle in SCV. Several experiments were conducted using water and CO₂ as the heat transfer media in the tubes, respectively. The results indicated that hot air flux, the initial liquid level height and the tube pitch ratio had great influence on the heat transfer coefficient outside the tube bundle (h_o). Finally, the air flux associated factor β and height associated factor γ were introduced to propose a new ho correlation. After verified by experiments using cold water, high pressure CO₂ and liquid N₂ as heat transfer media, respectively, it was found that the biggest deviation between the predicted and the experimental values was less than 25%.

Key words: Submerged combustion vaporizer, Fluid sweeping tube bundle, Two-phase flow, Heat transfer coefficient, Modeling

摘要： In order to optimize the design of the submerged combustion vaporizer (SCV), an experimental apparatus was set up to investigate the heat transfer character outside the tube bundle in SCV. Several experiments were conducted using water and CO₂ as the heat transfer media in the tubes, respectively. The results indicated that hot air flux, the initial liquid level height and the tube pitch ratio had great influence on the heat transfer coefficient outside the tube bundle (h_o). Finally, the air flux associated factor β and height associated factor γ were introduced to propose a new ho correlation. After verified by experiments using cold water, high pressure CO₂ and liquid N₂ as heat transfer media, respectively, it was found that the biggest deviation between the predicted and the experimental values was less than 25%.

关键词: Submerged combustion vaporizer, Fluid sweeping tube bundle, Two-phase flow, Heat transfer coefficient, Modeling

Jiajun Song, Dongyan Han, Qinqin Xu, Dan Zhou, Jianzhong Yin. Heat transfer model of two-phase flow across tube bundle in submerged combustion vaporizer[J]. Chin.J.Chem.Eng., 2019, 27(3): 613-619.

Jiajun Song, Dongyan Han, Qinqin Xu, Dan Zhou, Jianzhong Yin. Heat transfer model of two-phase flow across tube bundle in submerged combustion vaporizer[J]. Chinese Journal of Chemical Engineering, 2019, 27(3): 613-619.

References 31

[1]	Y.W. Kuang, C.C. Yi, W. Wang, Numerical simulation of frosting behavior and its effect on a direct-contact ambient air vaporizer, J. Nat. Gas Sci. Eng. 27(2015) 55-63.
[2]	J. Pan, R. Li, T. Lv, G. Wu, Z. Deng, Thermal performance calculation and analysis of heat transfer tube in super open rack vaporizer, Appl. Therm. Eng. 93(2016) 27-35.
[3]	L. Pu, Z. Qu, Y. Bai, D. Qi, K. Song, P. Yi, Thermal performance analysis of intermediate fluid vaporizer for liquefied natural gas, Appl. Therm. Eng. 65(1-2) (2014) 564-574.
[4]	S. Xu, Q. Cheng, L. Zhuang, B. Tang, Q. Ren, X. Zhang, LNG vaporizers using various refrigerants as intermediate fluid: Comparison of the required heat transfer area, J. Nat. Gas Sci. Eng. 25(2015) 1-9.
[5]	S. Egashira, LNG vaporizer for LNG re-gasification terminal, Kobelco Technol. Rev. 32(2013) 6(http://www.kobelco.co.jp/english/ktr/pdf/ktr_32/064-069.pdf).
[6]	G.E. Engdahl, Submerged Combustion LNG Vaporizer, USA Pat. (2007) US7168395B2.
[7]	A. Zukauskas, Heat transfer from tubes in crossflow, Adv. Heat Tran. 8(1972) 93-160.
[8]	Z. Baniamerian, Analytical modeling of boiling nanofluids, J. Thermophys. Heat Transf. 31(1) (2017) 136-144.
[9]	J.P.M. Florez, M.B.H. Mantelli, Thermal model for sintered cylindrical evaporators of loop heat pipes, J. Thermophys. Heat Transf. 31(1) (2017) 165-177.
[10]	D. Robinson, J. Thome, Local bundle boiling heat transfer coefficients on a plain tube bundle (RP-1089), HVAC&R Res. 10(1) (2004) 33-51.
[11]	D. Robinson, J. Thome, Local bundle boiling heat transfer coefficients on a turbo-BⅡ HP tube bundle (RP-1089), HVAC&R Res. 10(4) (2004) 441-457.
[12]	D. Robinson, J. Thome, Local bundle boiling heat transfer coefficients on an integral finned tube bundle (RP-1089), HVAC&R Res. 10(3) (2004) 331-344.
[13]	E.v. Rooyen, F. Agostini, N. Borhani, J.R. Thome, Boiling on a tube bundle: part Ⅱ- Heat transfer and pressure drop, Heat Transfer Eng. 33(11) (2012) 930-946.
[14]	K. Sorensen, A. Franco, L. Pelagotti, T.J. Condra, Modelling of a cross flow evaporator for CSP application: Analysis of the use of different two phase heat transfer and pressure drop correlations, Int. J. Therm. Sci. 107(2016) 66-76.
[15]	M.M. Shah, A general correlation for heat transfer during saturated boiling with flow across tube bundles, HVAC&R Res. 13(5) (2007) 749-768.
[16]	J. Gylys, T. Zdankus, M. Gylys, Investigation of heat transfer from inclined flat surface to aqueous foam, Int. J. Heat Mass Transf. 59(2013) 272-278.
[17]	J. Gylys, T. Zdankus, M. Gylys, Experimental investigation of heat transfer from inclined flat surface to aqueous foam, Int. J. Heat Mass Transf. 69(2014) 230-236.
[18]	J. Gylys, S. Sinkunas, T. Zdankus, Analysis of staggered tube bundle heat transfer to vertical foam flow, Int. J. Heat Mass Transf. 51(1-2) (2008) 253-262.
[19]	J. Gylys, T. Zdankus, R. Jonynas, R. Maladauskas, Experimental investigation of in-line tube bundle heat transfer process to vertical downward foam flow, Int. J. Heat Mass Transf. 54(11-12) (2011) 2326-2333.
[20]	J. Gylys, T. Zdankus, S. Sinkunas, M. Babilas, R. Jonynas, Experimental Investigation of the Heat Transfer Process Between a Tube Bundle and An Upward Aqueous Foam Flow, Advanced Computational Methods And Experiments In Heat Transfer Xi, vol. 68, Wit Press, Southampton, 2010.
[21]	O.C. Leite, Submerged combustion vaporisers for LNG distribution facilities, Linde Engineering, 1997, http://www.digitalrefining.com/article/1000326.
[22]	C.L. Han, J.J. Ren, Y.Q. Wang, M.S. Bi, Experimental studies of shell-side fluid flow and heat transfer characteristics in a submerged combustion vaporizer, Int. J. Heat Mass Transf. 101(2016) 436-444.
[23]	C.L. Han, J.J. Ren, Y.Q. Wang, W.P. Dong, M.S. Bi, Numerical simulation of coupled fluid flow and heat transfer characteristics in a submerged combustion vaporizer, Cryogenics 80(2016) 115-126.
[24]	C.L. Han, J.J. Ren, Y.Q. Wang, W.P. Dong, M.S. Bi, Experimental investigation on fluid flow and heat transfer characteristics of a submerged combustion vaporizer, Appl. Therm. Eng. 113(2017) 529-536.
[25]	Y.C. Park, J. Kim, Submerged combustion vaporizer optimization using entropy minimization method, Appl. Therm. Eng. 103(2016) 1071-1076.
[26]	C. Qi, W. Wang, B. Wang, Y. Kuang, J. Xu, Performance analysis of submerged combustion vaporizer, J. Nat. Gas Sci. Eng. 31(2016) 313-319.
[27]	G. Ribatski, J.R. Thome, Two-phase flow and heat transfer across horizontal tube bundles-a review, Heat Transfer Eng. 28(6) (2007) 508-524.
[28]	R. Dowlati, M. Kawaji, A.M.C. Chan, Pitch-to-diameter effect on two-phase flow across an in-line tube bundle, AICHE J. 36(5) (1990) 765-772.
[29]	D.Y. Han, Q.Q. Xu, D. Zhou, J.Z. Yin, Design of heat transfer in submerged combustion vaporizer, J. Nat. Gas Sci. Eng. 31(2016) 76-85.
[30]	F.W. Dittus, L.M.K. Boelter, Heat transfer in automobile radiator of the tubular type, Int. Commun. Heat Mass Transfer 12(1) (1985) 3-22.
[31]	J.P. Holman, Unsteady-State Conduction, 9 th ed., Heat transfer, McGraw - Hill, Inc., New York, 1997131-204.