工程科学学报，第41卷，第6期：731-740,2019年6月 Chinese Journal of Engineering,Vol.41,No.6:731-740,June 2019 DOI:10.13374/j.issn2095-9389.2019.06.004:http://journals.ustb.edu.cn LiBr一BMIM]Cl/H,O新型三元工质对的密度、黏度、 比热容及比焓 罗春欢2”，王亚楠”，韩旭”，李艺群”，苏庆泉2四 1)北京科技大学能源与环境工程学院，北京1000832)北京科技大学北京市高校节能与环保工程研究中心，北京100083 ☒通信作者，E-mail:suqingquan(@ustb.cdu.cn 摘要在前期研究的基础上，对LiB一BMM]CI/H,O三元工质对的其他重要热力学数据进行了系统地测定，包括密度、黏 度、比热容和比焓.采用最小二乘法对测定的热力学数据进行回归，得到了物性方程：实验值与物性方程计算值的平均绝对相 对偏差(average absolute relative deviation,AARD)分别为0.03%、l.10%、0.29%和0.01%.除了结晶温度和腐蚀性，黏度是影 响工质对实际应用的另外一个重要因素，LiBr一BMIM0C/H,0三元工质对的运动黏度小于25mm2·s',满足实际应用要求， 且很好地改善了离子液体的高黏度问题. 关键词离子液体：溴化锂：工质对：热物性：吸收式热泵 分类号TK01·9 Density,viscosity,specific heat capacity,and specific enthalpy of a novel ternary working pair:LiBr-[BMIM]Cl/H,O LU0Chun-huan》,WANG Ya-nan'”,HAN Xu”,山Yi-un',SU Qing-quan'2s 1)School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Beijing Engineering Research Center for Energy Saving and Environmental Protection,University of Science and Technology Beijing,Beijing 100083 China Corresponding author,E-mail:suqingquan@ustb.edu.cn ABSTRACT Absorption heat pump (AHP)system is an energy-saving technology that utilizes renewable energy or industrial waste heat for refrigeration and heating.Therefore,it has attracted much attention for use in residential and industrial buildings.The thermo- dynamic performance of the AHP system greatly depends on the thermodynamic properties of its working pairs.In commercial applica- tions,LiBr/H2O is usually used as a traditional working pair.However,its shortcomings of easy crystallization and severe corrosion have significant impacts on the practical application of high-temperature AHP systems.To overcome the shortcomings of LiBr/H2O, various ionic liquids (ILs)/H2O mixtures have been recently investigated as alternative working pairs.Though ILs/H2O has a wider operating temperature range and less corrosiveness,ILs/HO working pairs generally have very high viscosity,which restricts its practi- cal applications.To further solve the above shortcomings of LiBr/H2O and IIs/H2O,a new ternary working pairs LiBr-[BMIM]CI/ H2O was proposed in the previous study.Compared to the traditional LiBr/H2O binary working pair,the LiBr-[BMIM]CI/H2O terna- ry working pair has advantages in terms of crystallization temperature and corrosiveness.LiB-[BMIM]CI/H2O shows a great potential in the practical application of an AHP and refrigeration systems,especially at a high temperature.Based on the previous study,in this work,several important thermodynamic properties,including densities,viscosities,specific heat capacities,and specific enthalpies 收稿日期：2018-05-30 基金项目：国家自然科学基金资助项目(51506005)：中央高校基本科研业务费资助项目(FRFTPA48910A3)工程科学学报，第 41 卷，第 6 期: 731--740，2019 年 6 月 Chinese Journal of Engineering，Vol． 41，No． 6: 731--740，June 2019 DOI: 10． 13374 /j． issn2095--9389． 2019． 06． 004; http: / /journals． ustb． edu． cn LiBr--［BMIM］Cl / H2 O 新型三元工质对的密度、黏度、 比热容及比焓 罗春欢1，2) ，王亚楠1) ，韩 旭1) ，李艺群1) ，苏庆泉1，2)  1) 北京科技大学能源与环境工程学院，北京 100083 2) 北京科技大学北京市高校节能与环保工程研究中心，北京 100083 通信作者，E-mail: suqingquan@ ustb． edu． cn 摘 要 在前期研究的基础上，对 LiBr--［BMIM］Cl /H2O 三元工质对的其他重要热力学数据进行了系统地测定，包括密度、黏 度、比热容和比焓． 采用最小二乘法对测定的热力学数据进行回归，得到了物性方程; 实验值与物性方程计算值的平均绝对相 对偏差( average absolute relative deviation，AAＲD) 分别为 0. 03% 、1. 10% 、0. 29% 和 0. 01% ． 除了结晶温度和腐蚀性，黏度是影 响工质对实际应用的另外一个重要因素，LiBr--［BMIM］Cl /H2O 三元工质对的运动黏度小于 25 mm2 ·s － 1，满足实际应用要求， 且很好地改善了离子液体的高黏度问题． 关键词 离子液体; 溴化锂; 工质对; 热物性; 吸收式热泵 分类号 TK01 + 9 收稿日期: 2018--05--30 基金项目: 国家自然科学基金资助项目( 51506005) ; 中央高校基本科研业务费资助项目( FＲF-TP-18-010A3) Density，viscosity，specific heat capacity，and specific enthalpy of a novel ternary working pair: LiBr--［BMIM］Cl /H2O LUO Chun-huan1，2) ，WANG Ya-nan1) ，HAN Xu1) ，LI Yi-qun1) ，SU Qing-quan1，2)  1) School of Energy and Environmental Engineering，University of Science and Technology Beijing，Beijing 100083，China 2) Beijing Engineering Ｒesearch Center for Energy Saving and Environmental Protection，University of Science and Technology Beijing，Beijing 100083， China Corresponding author，E-mail: suqingquan@ ustb． edu． cn ABSTＲACT Absorption heat pump ( AHP) system is an energy-saving technology that utilizes renewable energy or industrial waste heat for refrigeration and heating． Therefore，it has attracted much attention for use in residential and industrial buildings． The thermo￾dynamic performance of the AHP system greatly depends on the thermodynamic properties of its working pairs． In commercial applica￾tions，LiBr /H2O is usually used as a traditional working pair． However，its shortcomings of easy crystallization and severe corrosion have significant impacts on the practical application of high-temperature AHP systems． To overcome the shortcomings of LiBr /H2O， various ionic liquids ( ILs) /H2O mixtures have been recently investigated as alternative working pairs． Though ILs /H2O has a wider operating temperature range and less corrosiveness，ILs /H2O working pairs generally have very high viscosity，which restricts its practi￾cal applications． To further solve the above shortcomings of LiBr /H2O and ILs /H2O，a new ternary working pairs LiBr--［BMIM］Cl / H2O was proposed in the previous study． Compared to the traditional LiBr /H2O binary working pair，the LiBr--［BMIM］Cl /H2O terna￾ry working pair has advantages in terms of crystallization temperature and corrosiveness． LiBr--［BMIM］Cl /H2O shows a great potential in the practical application of an AHP and refrigeration systems，especially at a high temperature． Based on the previous study，in this work，several important thermodynamic properties，including densities，viscosities，specific heat capacities，and specific enthalpies