船舶与海洋工程

相变微胶囊对绝热喷雾吸收过程中的热质传递特性的影响

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  • (大连海事大学  轮机热能工程研究所,辽宁  大连,116026)
王延阳(1997-),男,研究生;苏风民(1978-),男,博士,教授,E-mail:fengminsu@dlmu.edu.cn

网络出版日期: 2023-01-29

基金资助

国家自然科学基金面上项目(51906028)

Effect of phase change microcapsules on heat and mass transfer during adiabatic spray absorption

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  • (Institute of Marine Engineering and Thermal Science, Dalian Maritime University, Dalian, 116026, China)

Online published: 2023-01-29

摘要

通过在吸收工质中加入相变微胶囊,提高工质的有效热容,进而减少溶液循环量和雾化功耗。建立了溴化锂溶液绝热喷雾吸收模型,分析了相变胶囊对绝热喷雾吸收过程的雾化功耗与吸收时间的影响。研究结果显示:相变胶囊的加入有助于减少相同制冷量下雾化功耗,但同时需要更长的吸收时间。

本文引用格式

王延阳, 苏风民, 韦成书, 王一凡, 彭本利 . 相变微胶囊对绝热喷雾吸收过程中的热质传递特性的影响[J]. 大连海事大学学报, 2023 , 49(1) : 110 -116 . DOI: 10.16411/j.cnki.issn1006-7736.2023.01.012

Abstract

By adding phase change microcapsules into the absorption working medium, the effective heat capacity of the working medium was increased, and the solution circulation and atomization power consumption were reduced. An adiabatic spray absorption model of lithium bromide solution was established, and the influence of phase change microcapsules on the atomization power consumption and absorption time of adiabatic spray absorption process was analyzed. The results show that the addition of phase change microcapsules can help reduce the atomization power consumption under the same cooling capacity, but it also requires longer absorption time.

参考文献

[1]MOSTAFAVI M, AGNEW B. Thermodynamic analysis of combined diesel engine and absorption refrigeration unitnaturally aspirated engine with precooling[J].Applied Thermal Engineering,1997,17(6):593-599.
[2]SUMMERER F, ALEFELD G,ZIEGLER F, et al. Hydroxide absorption heat pumps with spray absorber[J]. ASHRAE Transactions, 1996, 102(1):1010-1016.
[3]李慧宇,申江,乔海军.采用预冷却绝热吸收的溴化锂吸收式制冷循环的研究[J].流体机械,2006,34(6):56-60.
LI H Y,SHEN J,QIAO H J. Research on lithium bromide absorption refrigeration cycle with precooled adiabatic absorption[J].Fluid Machinery, 2006,34(6):56-60. (in Chinese)
[4]VENEGAS M, RODRIGUEZ P, LECUONA A, et al. Spray absorbers in absorption systems using lithium Nitrate-ammonia solution[J]. International Journal of Refrigeration, 2005, 28:554-564.
[5]WARNAKULASURIYA F S K, WOREK W M. Adiabatic water absorption properties of an aqueous absorbent at very pressures in a spray absorber[J]. International Journal of Heat and Mass Transfer, 2006, 49(9): 1592-1602.
[6]WARNAKULASURIYA F S K,WOREK W M. Drop formation of swirl-jet nozzles with high viscous solution in vacuum-new absorbent in spray absorption refrigeration[J].International Journal of Heat and Mass Transfer,2008,51 (13) :3362-3368.
[7]任志远,姜春英,陈轶光. LiBr溶液喷淋量对预冷却吸收系统的影响[J].制冷空调与电力机械,2005,26(5):17-21.
REN Z Y, JIANG C Y, CHEN Y G. Effect of spray amount of LiBr solution on precooled absorption system[J].Refrigeration, Air Conditioning and Electric Machinery,2005,26(5):17-21. (in Chinese)
[8]CUI H, LIAO W, MI X, et al. Study on functional and mechanical properties of cement mortar with graphite-modified microencapsulated phase-change materials[J]. Energy and Buildings, 2015, 105:273-284.
[9]THIELE A M, SANT G, PILON L. Diurnal thermal analysis of microencapsulated PCM-concrete composite walls[J]. Energy Conversion and Management, 2015, 93: 215-227.
[10]封冠男. 相变微胶囊流体的储热及传热特性实验研究[D]. 北京:华北电力大学,2018.
FENG G N. Experimental study on heat storage and heat transfer characteristics of phase change microcapsule fluid[D]. Beijing: North China Electric Power University, 2018. (in Chinese)
[11]卜令帅,屈治国,徐洪涛,等.相变微胶囊悬浮液储能系统放冷特性实验研究[J].化工学报,2021,72(8):4064-4072.
BU L S, QU Z G, XU H T, et al. Experimental study on cooling characteristics of phase change microcapsule suspension energy storage system[J].Journal of Chemical Engineering,2021,72(8):4064-4072.(in Chinese)
[12]吕珊. 微胶囊相变悬浮液的物理稳定性及热力特性研究[D].上海:上海电力学院, 2016.
LU S. Study on physical stability and thermal properties of microcapsule phase change suspension[D].Shanghai: Shanghai University of Electric Power,2016.(in Chinese)
[13]贾明生.溴化锂水溶液的几个主要物性参数计算方程[J].湛江海洋大学学报,2002,22(3):52-58.
JIA M S. Calculation equation of some main physical parameters of lithium bromide solution[J]. Journal of Zhanjiang Ocean University,2002,22(3):52-58.(in Chinese)
[14]HOSSEINNIA S M, NAGHASHZADEGAN M, KOUHIKAMALI R. CFD simulation of adiabatic water vapor absorption in large drops of water-LiBr solution[J].Applied Thermal Engineering, 2016,102:17-29. 
[15]ZHAO X, ZHANG H, ZHANG B, et al. Dynamics and heat transfer characteristics of isolated liquid film in spray cooling[J].International Journal of Heat and Mass Transfer,2022,183:122037.
[16]MAXWELL J C. A treatise on electricity and magnetism [M]. Oxford: Oxford University Press, 1904: 435-441.
[17]王补宣,周乐平,彭晓峰.纳米颗粒悬浮液的黏度、热扩散系数与Pr数[J].自然科学进展,2004,14(7):80-84.
WANG B X, ZHOU L P, PENG X F. Viscosity, thermal diffusion coefficient and Pr number of nanoparticle suspensions[J]. Progress in Natural Science, 2004,14(7):80-84. (in Chinese)
[18]戴永庆,耿惠彬,陆震. 溴化锂吸收式制冷技术及应用[M].北京:机械工业出版社,1996:103-107.
DAI Y Q, GENG H B, LU Z. Technology and application of lithium bromide absorption refrigeration[M].Beijing: China Machine Press,1996:103-107.(in Chinese)
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