Modeling the dynamic simulation and control of a single effect libr-h2o absorption chiller
文献类型：期刊论文
| 作者 | Xu, Yu-jie1,2,3; Zhang, Shi-jie1,2; Xiao, Yun-han1,2 |
| 刊名 | Applied thermal engineering
 |
| 出版日期 | 2016-08-25 |
| 卷号 | 107页码:1183-1191 |
| ISSN号 | 1359-4311 |
| 关键词 | Absorption chiller Dynamic performance Control strategy |
| DOI | 10.1016/j.applthermaleng.2016.06.043 |
| 通讯作者 | Zhang, shi-jie(zhangsj@mail.etp.ac.cn) |
| 英文摘要 | In this study, a dynamic model of a single-effect libr-h2o absorption chiller with improved accuracy is built to explore the dynamic performance and the control strategy. holman correlation is applied to the calculation of heat transfer coefficients of the evaporator, condenser, solution heat exchanger, and generator. the heat and mass transfer in the absorber, chiefly controlled by the mass transfer resistance on the liquid side, are described according to a lumped but accurate physical model based on nusselt's film theory. the dynamic performance of the absorption chiller is evaluated under the disturbance of the cooling water inlet temperature and heat source temperature. the effect of the thermal mass of the main components on the dynamic performance is explored. two control strategies are implemented in the model of the absorption chiller: one is setting the chilled water outlet temperature as the manipulated variable, and the other is setting the generator solution temperature as the manipulated variable. the control performances of the two strategies are compared in detail. results show that either increasing the heat source temperature or decreasing the cooling water inlet temperature increases the risk of crystallization in the dynamic process. the time to reach steady state is highly dependent on the thermal mass of the generator, rather than the thermal masses of the condenser, evaporator, and absorber. the single-effect chiller has better control performance in off-design condition when the generator solution temperature rather than the chilled water outlet temperature is selected as the manipulated variable. (c) 2016 elsevier ltd. all rights reserved. |
| WOS关键词 | PERFORMANCE ANALYSIS ; REFRIGERATION SYSTEMS ; FALLING-FILM ; HEAT-PUMP ; DESIGN ; TEMPERATURE ; MACHINE |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| WOS类目 | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000382794900118 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375502 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Shi-jie |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Res Ctr Clean Energy & Power, Lianyungang 222069, Jiangsu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Yu-jie,Zhang, Shi-jie,Xiao, Yun-han. Modeling the dynamic simulation and control of a single effect libr-h2o absorption chiller[J]. Applied thermal engineering,2016,107:1183-1191. |
| APA | Xu, Yu-jie,Zhang, Shi-jie,&Xiao, Yun-han.(2016).Modeling the dynamic simulation and control of a single effect libr-h2o absorption chiller.Applied thermal engineering,107,1183-1191. |
| MLA | Xu, Yu-jie,et al."Modeling the dynamic simulation and control of a single effect libr-h2o absorption chiller".Applied thermal engineering 107(2016):1183-1191. |
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来源：中国科学院大学
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