Experimental Research on two kinds of NH_3-H_2O-LiBr Absorption Chillers with Heat-regenerators

doi:10.3969/j.issn.0253-4339.2011.01.007

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Experimental Research on two kinds of NH_3-H_2O-LiBr Absorption Chillers with Heat-regenerators

更新时间：2024-08-02

- Experimental Research on two kinds of NH_3-H_2O-LiBr Absorption Chillers with Heat-regenerators
- Journal of Refrigeration Vol. 32, Issue 1, (2011)
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- DOI：10.3969/j.issn.0253-4339.2011.01.007
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- Published：2011
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Experimental Research on two kinds of NH_3-H_2O-LiBr Absorption Chillers with Heat-regenerators[J]. Journal of refrigeration, 2011, 32(1).
DOI：

Experimental Research on two kinds of NH_3-H_2O-LiBr Absorption Chillers with Heat-regenerators[J]. Journal of refrigeration, 2011, 32(1). DOI： 10.3969/j.issn.0253-4339.2011.01.007.

摘要

为了提高无回热器氨-水-溴化锂吸收式制冷实验样机的性能

实验首次提出了单回热器型和双回热器型氨-水-溴化锂吸收式制冷机的概念

并对两种实验样机分别进行了实验研究。实验结果表明

对于单回热器系统

溴化锂的加入大大降低了发生过程中的发生压力

对系统的安全性有利。但是由于吸收器和回热器的直接连通

导致回热器温度高于35℃时

随着回热温度的上升

吸收器压力急剧升高

制冷效果恶化。对于双回热器系统

结构的改进有效地解决了单回热器系统存在的问题

很好地实现了回热功能。相比于无回热器氨-水-溴化锂吸收式制冷实验样机

制冷系数得到明显的提高。在氨质量分数为50%

溴化锂质量分数为15%的情况下

系统的性能系数从无回热器的0.276提高到0.457

增幅达65.35%。

Abstract

In order to improve the performance of the prototype NH3-H2O-LiBr absorption chiller without heat regenerators

the concept of this kind of refrigeration system with single or double regenerators was firstly proposed

and the corresponding experiments of the two prototypes were carried out respectively.The experiments indicated that pressure in the generator could be significantly reduced during the process of generation after adding lithium bromide to the system for the single regenerator system

so the syste...

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Related Author

Li Xinsheng

Jia Teng

Zhao Yao

Jiang Shan

Dai Yanjun

Li Wenlong

He Yang

Deng Jianqiang

Related Institution

UK Low Carbon College, Shanghai Jiao Tong University

Institute of Refrigeration and Cryogenic Engineering, Shanghai Jiao Tong University

Engineering Research Center of Solar Power and Refrigeration, MOE

School of Chemical Engineering and Technology, Xi′an Jiaotong University

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University

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