Study on the key ejector structures of the waste heat-driven ejector air conditioning system with R236fa as working fluid

被引：24

作者：

Zhang, Bo ^{[1
]}

Song, Xutong ^{[1
]}

Lv, Jinsheng ^{[1
]}

Zuo, Jixue ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China

来源：

ENERGY AND BUILDINGS | 2012年 / 49卷

关键词：

Ejector; Refrigeration; Computational fluid dynamics; R236fa; REFRIGERATION SYSTEM; PERFORMANCE; IMPROVEMENT; DYNAMICS;

D O I：

10.1016/j.enbuild.2012.02.009

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The ejector performance is numerically and experimentally studied using R236fa as working fluid to analyze the influence of the key geometries of ejector. The computational fluid dynamics (CFD) was employed to predict the flow process and performance of the ejector. A case study was provided in this paper, in which the angles of nozzle outlet were 8 degrees, 10 degrees and 14 degrees, the distance of nozzle exit to mixing chamber was varied as 23 and 33 mm and the length of diffuser was varied as 88 and 103 mm. The CFD results were verified with an experiment. It can be concluded that, the ejector with the nozzle outlet angle of 8 degrees. the distance of nozzle exit to mixing chamber of 23 mm and the diffuser length of 88 mm has the best performance. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：209 / 215

页数：7

共 19 条

[1] Theoretical and experimental study on solar ejector cooling system using R236fa
Zhang, B.
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[4] THE DESIGN AND RATING OF THE PRESSURE EXCHANGE STEAM EJECTOR FOR A WASTE HEAT DRIVEN AUTOMOTIVE AIR CONDITIONING SYSTEM
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[J]. ES2009: PROCEEDINGS OF THE ASME 3RD INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, VOL 1, 2009, : 715 - 728
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[J]. INTERNATIONAL JOURNAL OF REFRIGERATION, 2024, 158 : 202 - 215
[6] The effects of composition ratios and pressure drops of R245fa/R236fa mixtures on the performance of an organic Rankine cycle system for waste heat recovery
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[J]. ENERGY CONVERSION AND MANAGEMENT, 2018, 175 : 313 - 326
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[9] Experimental study of the behavior of a hybrid ejector-based air-conditioning system with R134a
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[J]. ENERGY CONVERSION AND MANAGEMENT, 2016, 112 : 31 - 40
[10] Experimental validation of the theoretical ejector model in a low-grade waste heat refrigeration system using R1233zdE as a working fluid
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