R134a/R23-DMF溶液气泡泵输送性能实验
|
摘要
搭建了气泡泵输送性能实验装置,对提升管管径为6、8、12mm的气泡泵输送不同R134a/R23-DMF浓度溶液的性能进行实验研究。结果表明,在相同制冷剂浓度情况下,三种管径气泡泵的气相流量随着输入功率的增加均呈线性增加趋势,液气比随着气相流量的增加均呈现反向趋势,发生温度随着输入功率增加而线性升高,而输入功率对于系统压力的影响较小。在不同制冷剂浓度情况下,R134a/R23浓度对液气比的影响不明显,但对系统压力影响很大,R134a/R23浓度的增加使得发生温度有微小的升高。8 mm管径气泡泵液气比和稀溶液流量变化幅度居中,而气相流量变化范围最宽,发生温度最低,比较适合用于扩散吸收制冷系统。这些实验结果对扩散吸收制冷系统的气泡泵设计具有重要参考价值。
An experimental rig was built and researches on the transport performance of bubble pumps with R134a/R23-DMF solutions and three lifting tubes of different inner diameters(6 mm,8 mm and 12 mm) were conducted.On the same concentration of solutions,the results showed the gas mass flow rate and the generating temperature increased approximately linearly with the increase of the heat input,the pumping ratio decreased approximately reversely with the increase of the gas mass flow rate,and the heat input had slight effect on system pressure.The concentrations of solutions had slight effect on the pumping ratio and generating temperature,but it had obvious effect on system pressure.The pumping ratio of the bubble pump and the poor R134a/R23 solution mass flow rate with lifting tube of 8 mm inner diameter has medium variation range compared with those of 6 mm and 12 mm lifting tubes,but the range of the gas mass flow rate was the widest and the generating temperature was the lowest.It showed that the bubble pump with lifting tube of 8 mm inner diameter was appropriate for the diffusion absorption refrigerator.The experimental results will be helpful to the design of bubble pumps for the diffusion absorption refrigerator.
An experimental rig was built and researches on the transport performance of bubble pumps with R134a/R23-DMF solutions and three lifting tubes of different inner diameters(6 mm,8 mm and 12 mm) were conducted.On the same concentration of solutions,the results showed the gas mass flow rate and the generating temperature increased approximately linearly with the increase of the heat input,the pumping ratio decreased approximately reversely with the increase of the gas mass flow rate,and the heat input had slight effect on system pressure.The concentrations of solutions had slight effect on the pumping ratio and generating temperature,but it had obvious effect on system pressure.The pumping ratio of the bubble pump and the poor R134a/R23 solution mass flow rate with lifting tube of 8 mm inner diameter has medium variation range compared with those of 6 mm and 12 mm lifting tubes,but the range of the gas mass flow rate was the widest and the generating temperature was the lowest.It showed that the bubble pump with lifting tube of 8 mm inner diameter was appropriate for the diffusion absorption refrigerator.The experimental results will be helpful to the design of bubble pumps for the diffusion absorption refrigerator.
引文
[1]VON PLATEN B C,MUNTERS C G.Refrigerator:US1609334[P].1926.
[2]CHEN J,KIM K J,HEROLD K E.Performance enhancement of a diffusion-absorption refrigerator[J].International Journal of Refrigeration,1996,19(3):208-218.
[3]PFAFF M,SARAVANAN R,PRAKASH MAIYA M,et al.Studies on bubble pump for a water-lithium bromide vapor absorption refrigerator[J].International Journal of Refrigeration,1998,21(6):452-462.
[4]ZHANG L Y,WU Y Y,ZHENG H F,et al.An experimental investigation on performance of bubble pump with lunate channel for absorption refrigeration system[J].International Journal of Refrigeration,2006,29(5):815-822.
[5]陈永军,刘道平,王东昱,等.连续变截面直立管气泡泵工作特性试验研究[J].流体机械,2014,42(6):61-64+10.CHEN Y J,LIU D P,WANG D Y,et al.Experimental study of working characteristic on continuous variable cross-section upright tube bubble pump[J].Fluid Machinery,2014,42(6):61-64+10.
[6]陈永军,刘道平,眭阳,等.冷态工况下变截面管气泡泵提升特性试验研究[J].流体机械,2015,43(3):47-51+82.CHEN Y J,LIU D P,SUI Y,et al.Experimental study on the lifting performance of variable cross-sectional thbe bubble pump under a cold condition[J].Fluid Machinery,2015,43(3):47-51+82.
[7]陈永军,刘道平,黄塬琳,等.变截面直立管气泡泵理论模型验证研究[J].太阳能学报,2016,37(4):917-923.CHEN Y J,LIU D P,HUANG Y L,et al.Theoretical model validation study of variable cross-section vertical tube bubble pump[J].Acta Energiae Solaris Sinica,2016,37(4):917-923.
[8]AN L,LIU D,CHEN Y,et al.Theoretical and experimental study on the lifting performance of bubble pump with variable cross-section lift tube[J].Applied Thermal Engineering.2017,111:1265-1271.
[9]KOYFMAN A,JELINEK M,LEVY A,et al.An experimental investigation of bubble pump performance for diffusion absorption refrigeration system with organic working fluids[J].Applied Thermal Engineering,2003,23(15):1881-1894.
[10]VICATOS G,BENNETT A.Multiple lift tube pumps boost refrigeration capacity in absorption plants[J].Journal of Energy in Southern Africa,2007,18(4):49-57.
[11]GUREVICH B,JELINEK M,IEVY A,et al.Performance of a set of parallel bubble pumps operating with a binary solution of R134a-DMAC[J].Applied Thermal Engineering,2015,75:724-730.
[12]辛岩,刘道平,林发龙,等.多管式气泡泵提升性能影响因素理论与试验研究[J].水资源与水工程学报,2016,27(4):169-173.XIN Y,LIU D P,LIN F L,et al.Theory and experiment on effect factor of lifting performance of multiple-tube bubble pump[J].Journal of Water Resources and Water Engineering,2016,27(4):169-173.
[13]赵荣祥,刘道平,郑晓倩.提升管管径对导流式气泡泵性能影响的理论与实验研究[J].制冷学报,2014,35(6):90-95.ZHAO R X,LIU D P,ZHENG X Q.Theoretical and experimental research of guided bubble pump with different lift-tube diameter[J].Journal of Refrigeration,2014,35(6):90-95.
[14]赵荣祥,刘道平,梁俣,等.不同提升高度对气泡泵性能影响的理论与实验研究[J].制冷学报,2014,35(4):78-83.ZHAO R X,LIU D P,LIANG Y,et al.The theoretical and experimental research on performance of bubble pump with different lift height[J].Journal of Refrigeration,2014,35(4):78-83.
[15]李华山,王令宝,卜宪标,等.提升管管径对有机工质气泡泵性能的影响分析[J].新能源进展,2016,4(1):56-61.LI H S,WANG L B,BU X B,et al.Effects of lift-tube diameter on performance of bubble pump with organic working fluids[J].Advances in New and Renewable Energy,2016,4(1):56-61.
[16]JEMAI R,BENHMIDENE A,BECHIR C.Influence of the tube diameter on instability in the bubble pump[C]//International Conference of Green Energy.2018.
[17]陈永军,刘道平,黄塬琳,等.Einstein制冷系统气泡泵理论模型修正验证研究[J].制冷学报,2014,35(6):68-74.CHEN Y J,LIU D P,HUANG Y L,et al.Correction and validation of theoretical model of bubble pump in Einstein refrigeration system[J].Journal of Refrigeration,2014,35(6):68-74.
[18]陈福胜,何巍,王世宽,等.气泡泵输送性能的阻力损失系数修正法模拟[J].工程热物理学报,2015,36(6):1170-1175.CHEN F S,HE W,WANG S K,et al.Numerical investigations on the transport performance of the bubble pumps with the pressure loss coefficient correction method[J].Journal of Engineering Thermophysics,2015,36(6):1170-1175.
[19]谢育博,刘道平,杨亮,等.气泡泵压降模型的分析与优化[J].化工进展,2017,36(2):418-425.XIE Y B,LIU D P,YANG L,et al.Analysis and optimization of bubble pump pressure drop model[J].Chemical Industry and Engineering Progress,2017,36(2):418-425.
[20]ZOHAR A,JELINEK M,LEVY A,et al.Performance of diffusion absorption refrigeration cycle with organic working fluids[J].International Journal of Refrigeration,2009,32(6):1241-1246.
[21]HAN X H,GAO Z J,XU Y J,et al.Solubility of refrigerant 1,1,1,2-tetrafluoroethane in the N,N-dimethyl formamide in the temperature range from(263.15 to 363.15)K[J].Journal of Chemical&Engineering Data,2011,56(5):1821-1826.
[22]HAN X H,XU Y J,GAO Z J,et al.Vapor-liquid equilibrium study of an absorption heat transformer working fluid of(HFC-32+DMF)[J].Journal of Chemical&Engineering Data,2011,56(4):1268-1272.
[23]GAO Z J,XU Y J,LI P,et al.Solubility of refrigerant trifluoromethane in N,N-dimethyl formamide in the temperature range from283.15 K to 363.15 K[J].International Journal of Refrigeration,2012,35(5):1372-1376.
[24]高婉丽,赵小明,刘志刚.HFC32+HFC227ea/DMF吸收式制冷循环热力性能分析[J].工程热物理学报,2010,31(4):545-548.GAO W L,ZHAO X M,LIU Z G.Calculation of HFC32+HFC277ea/DMF absorption refrigeration cycle[J].Journal of Engineering Thermophysics,2010,31(4):545-548.
[25]WANG Q,GONG L,WANG J P,et al.A numerical investigation of a diffusion absorption refrigerator operating with the binary refrigerant for low temperature applications[J].Applied Thermal Engineering,2011,31(10):1763-1769.
[26]王勤,郝楠,孙腾飞,等.混合工质扩散吸收制冷系统初步实验研究[J].工程热物理学报,2012,33(4):553-556.WANG Q,HAO N,SUN T F,et al.Preliminary study on the performance of the diffusion absorption refrigerator operating with the mixed refrigerant[J].Journal of Engineering Thermophysics,2012,33(4):553-556.
[27]龚磊.混合制冷剂扩散吸收式制冷系统理论与实验研究[D].杭州:浙江大学,2012.GONG L.Theoretical and experimental study on the diffusion absorption refrigeration system using mixed refrigerant[D].Hangzhou:Zhejiang University,2012.
[28]郝楠.混合制冷剂扩散吸收制冷系统气泡泵的理论与实验研究[D].杭州:浙江大学,2013.HAO N.Experimental and theoretical studies on a bubble pump used for the mixed refrigerant diffusion-absorption refrigeration system[D].Hangzhou:Zhejiang University,2013.
[29]王勤,何巍,王世宽,等.R134a-DMF溶液气泡泵输送性能实验研究[J].工程热物理学报,2014,35(6):1053-1057.WANG Q,HE W,WANG S K,et al.Experimental studies on the performance of R134a-DMF solution bubble pump[J].Journal of Engineering Thermophysics,2014,35(6):1053-1057.
[30]HAN X H,WANG S K,HE W,et al.Experimental investigations on the pumping performance of bubble pumps with organic solutions[J].Applied Thermal Engineering,2015,86:43-48.
[2]CHEN J,KIM K J,HEROLD K E.Performance enhancement of a diffusion-absorption refrigerator[J].International Journal of Refrigeration,1996,19(3):208-218.
[3]PFAFF M,SARAVANAN R,PRAKASH MAIYA M,et al.Studies on bubble pump for a water-lithium bromide vapor absorption refrigerator[J].International Journal of Refrigeration,1998,21(6):452-462.
[4]ZHANG L Y,WU Y Y,ZHENG H F,et al.An experimental investigation on performance of bubble pump with lunate channel for absorption refrigeration system[J].International Journal of Refrigeration,2006,29(5):815-822.
[5]陈永军,刘道平,王东昱,等.连续变截面直立管气泡泵工作特性试验研究[J].流体机械,2014,42(6):61-64+10.CHEN Y J,LIU D P,WANG D Y,et al.Experimental study of working characteristic on continuous variable cross-section upright tube bubble pump[J].Fluid Machinery,2014,42(6):61-64+10.
[6]陈永军,刘道平,眭阳,等.冷态工况下变截面管气泡泵提升特性试验研究[J].流体机械,2015,43(3):47-51+82.CHEN Y J,LIU D P,SUI Y,et al.Experimental study on the lifting performance of variable cross-sectional thbe bubble pump under a cold condition[J].Fluid Machinery,2015,43(3):47-51+82.
[7]陈永军,刘道平,黄塬琳,等.变截面直立管气泡泵理论模型验证研究[J].太阳能学报,2016,37(4):917-923.CHEN Y J,LIU D P,HUANG Y L,et al.Theoretical model validation study of variable cross-section vertical tube bubble pump[J].Acta Energiae Solaris Sinica,2016,37(4):917-923.
[8]AN L,LIU D,CHEN Y,et al.Theoretical and experimental study on the lifting performance of bubble pump with variable cross-section lift tube[J].Applied Thermal Engineering.2017,111:1265-1271.
[9]KOYFMAN A,JELINEK M,LEVY A,et al.An experimental investigation of bubble pump performance for diffusion absorption refrigeration system with organic working fluids[J].Applied Thermal Engineering,2003,23(15):1881-1894.
[10]VICATOS G,BENNETT A.Multiple lift tube pumps boost refrigeration capacity in absorption plants[J].Journal of Energy in Southern Africa,2007,18(4):49-57.
[11]GUREVICH B,JELINEK M,IEVY A,et al.Performance of a set of parallel bubble pumps operating with a binary solution of R134a-DMAC[J].Applied Thermal Engineering,2015,75:724-730.
[12]辛岩,刘道平,林发龙,等.多管式气泡泵提升性能影响因素理论与试验研究[J].水资源与水工程学报,2016,27(4):169-173.XIN Y,LIU D P,LIN F L,et al.Theory and experiment on effect factor of lifting performance of multiple-tube bubble pump[J].Journal of Water Resources and Water Engineering,2016,27(4):169-173.
[13]赵荣祥,刘道平,郑晓倩.提升管管径对导流式气泡泵性能影响的理论与实验研究[J].制冷学报,2014,35(6):90-95.ZHAO R X,LIU D P,ZHENG X Q.Theoretical and experimental research of guided bubble pump with different lift-tube diameter[J].Journal of Refrigeration,2014,35(6):90-95.
[14]赵荣祥,刘道平,梁俣,等.不同提升高度对气泡泵性能影响的理论与实验研究[J].制冷学报,2014,35(4):78-83.ZHAO R X,LIU D P,LIANG Y,et al.The theoretical and experimental research on performance of bubble pump with different lift height[J].Journal of Refrigeration,2014,35(4):78-83.
[15]李华山,王令宝,卜宪标,等.提升管管径对有机工质气泡泵性能的影响分析[J].新能源进展,2016,4(1):56-61.LI H S,WANG L B,BU X B,et al.Effects of lift-tube diameter on performance of bubble pump with organic working fluids[J].Advances in New and Renewable Energy,2016,4(1):56-61.
[16]JEMAI R,BENHMIDENE A,BECHIR C.Influence of the tube diameter on instability in the bubble pump[C]//International Conference of Green Energy.2018.
[17]陈永军,刘道平,黄塬琳,等.Einstein制冷系统气泡泵理论模型修正验证研究[J].制冷学报,2014,35(6):68-74.CHEN Y J,LIU D P,HUANG Y L,et al.Correction and validation of theoretical model of bubble pump in Einstein refrigeration system[J].Journal of Refrigeration,2014,35(6):68-74.
[18]陈福胜,何巍,王世宽,等.气泡泵输送性能的阻力损失系数修正法模拟[J].工程热物理学报,2015,36(6):1170-1175.CHEN F S,HE W,WANG S K,et al.Numerical investigations on the transport performance of the bubble pumps with the pressure loss coefficient correction method[J].Journal of Engineering Thermophysics,2015,36(6):1170-1175.
[19]谢育博,刘道平,杨亮,等.气泡泵压降模型的分析与优化[J].化工进展,2017,36(2):418-425.XIE Y B,LIU D P,YANG L,et al.Analysis and optimization of bubble pump pressure drop model[J].Chemical Industry and Engineering Progress,2017,36(2):418-425.
[20]ZOHAR A,JELINEK M,LEVY A,et al.Performance of diffusion absorption refrigeration cycle with organic working fluids[J].International Journal of Refrigeration,2009,32(6):1241-1246.
[21]HAN X H,GAO Z J,XU Y J,et al.Solubility of refrigerant 1,1,1,2-tetrafluoroethane in the N,N-dimethyl formamide in the temperature range from(263.15 to 363.15)K[J].Journal of Chemical&Engineering Data,2011,56(5):1821-1826.
[22]HAN X H,XU Y J,GAO Z J,et al.Vapor-liquid equilibrium study of an absorption heat transformer working fluid of(HFC-32+DMF)[J].Journal of Chemical&Engineering Data,2011,56(4):1268-1272.
[23]GAO Z J,XU Y J,LI P,et al.Solubility of refrigerant trifluoromethane in N,N-dimethyl formamide in the temperature range from283.15 K to 363.15 K[J].International Journal of Refrigeration,2012,35(5):1372-1376.
[24]高婉丽,赵小明,刘志刚.HFC32+HFC227ea/DMF吸收式制冷循环热力性能分析[J].工程热物理学报,2010,31(4):545-548.GAO W L,ZHAO X M,LIU Z G.Calculation of HFC32+HFC277ea/DMF absorption refrigeration cycle[J].Journal of Engineering Thermophysics,2010,31(4):545-548.
[25]WANG Q,GONG L,WANG J P,et al.A numerical investigation of a diffusion absorption refrigerator operating with the binary refrigerant for low temperature applications[J].Applied Thermal Engineering,2011,31(10):1763-1769.
[26]王勤,郝楠,孙腾飞,等.混合工质扩散吸收制冷系统初步实验研究[J].工程热物理学报,2012,33(4):553-556.WANG Q,HAO N,SUN T F,et al.Preliminary study on the performance of the diffusion absorption refrigerator operating with the mixed refrigerant[J].Journal of Engineering Thermophysics,2012,33(4):553-556.
[27]龚磊.混合制冷剂扩散吸收式制冷系统理论与实验研究[D].杭州:浙江大学,2012.GONG L.Theoretical and experimental study on the diffusion absorption refrigeration system using mixed refrigerant[D].Hangzhou:Zhejiang University,2012.
[28]郝楠.混合制冷剂扩散吸收制冷系统气泡泵的理论与实验研究[D].杭州:浙江大学,2013.HAO N.Experimental and theoretical studies on a bubble pump used for the mixed refrigerant diffusion-absorption refrigeration system[D].Hangzhou:Zhejiang University,2013.
[29]王勤,何巍,王世宽,等.R134a-DMF溶液气泡泵输送性能实验研究[J].工程热物理学报,2014,35(6):1053-1057.WANG Q,HE W,WANG S K,et al.Experimental studies on the performance of R134a-DMF solution bubble pump[J].Journal of Engineering Thermophysics,2014,35(6):1053-1057.
[30]HAN X H,WANG S K,HE W,et al.Experimental investigations on the pumping performance of bubble pumps with organic solutions[J].Applied Thermal Engineering,2015,86:43-48.