Experiment on an NH<sub>3</sub>-H<sub>2</sub>O-LiBr Absorption Chiller with Heat-Regenerators

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Experiment on an NH₃-H₂O-LiBr Absorption Chiller with Heat-Regenerators

更新时间：2025-07-09

- Experiment on an NH₃-H₂O-LiBr Absorption Chiller with Heat-Regenerators
- Vol. 44, Issue 7, Pages: 38-41(2010)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB651
- Online First：10 July 2010，
  
  Published：2010
- 稿件说明：
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Experiment on an NH₃-H₂O-LiBr Absorption Chiller with Heat-Regenerators[J]. 2010, 44(7): 38-41.
DOI：

Experiment on an NH₃-H₂O-LiBr Absorption Chiller with Heat-Regenerators[J]. 2010, 44(7): 38-41. DOI：

摘要

为了改进无回热器的氨-水-溴化锂吸收式制冷机实验样机的性能

对具有回热器的吸收式制冷机实验样机的性能进行了实验研究.实验中对4组溶液进行了测试

其中NH

的质量分数均为50%

LiBr的质量分数分别为0%、15%、30%和38%.实验结果表明

加入LiBr之后

发生器压力明显降低

而且随着LiBr浓度的增大

相同温度下发生器压力也越来越小.初步实验还表明

采用回热器后

实验样机系统的性能系数从无回热器的0.280提高到了0.457

说明该实验样机系统的原理可指导工业应用

但与现有的工业化产品的性能相比还有待于进一步改进.

Abstract

Experimental tests were carried out on the performance of a prototype NH

-H

O-LiBr absorption chiller with two heat regenerators to improve that of the same type of the chiller without any regenerator. Four groups of solutions with different compositions were tested in the experiments

i.e.

all 50% of NH

concentration

and 0%

15%

30% and 38% of LiBr concentration

respectively. The results show that the pressure in the generator decreased significantly after adding LiBr to the system. The pressure in the generator declined with the increase in LiBr concentration at the same temperature. Moreover

the coefficient of performance of the system with regenerators increased from 0.280(for the system without regenerators)to 0.457. It seems that the principle of the prototype system could be applied in industrial products although it should be improved further.

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references

郑宋平.氨水吸收式制冷循环的理论与实验研究 [D]. 北京:北京化工大学化学工程系,2004.

戴永庆,耿惠彬,蔡小荣. 溴化锂吸收式制冷技术的回顾与展望 [J]. 制冷技术, 2001(1):21-24.

DAI Yongqing, GENG Huibin, CAI Xiaorong. Review and prospects of lithium bromide absorption refrigeration technology [J]. Refrigeration Technology, 2001(1):21-24.

WU Yuyuan, CHEN Yan, WU Tiehui. Experimental researches on characteristics of vapor-liquid equilibrium of NH3-H2O-LiBr system [J]. Int J Refrigeration, 2006,29(2):328-335.

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HE Shuqing, WU Tiehui, WU Yuyuan, et al. Presentation and thermodynamic evaluation of a novel NH3-H2O refrigeration system without distillation equipment and solution pump [J]. Journal of Xi'an Jiaotong University, 2007,41(9):1062-1065.

王晶,吴裕远,吴铁辉,等. 回热无泵氨-水吸收式制冷系统的设计分析[J].上海交通大学学报, 2009,43(2):314-317.

WANG Jing, WU Yuyuan, WU Tiehui, et al. Performance characteristics of heat-regenerative NH3-H2O absorption refrigeration system without solution pump and distillation equipment [J]. Journal of Shanghai Jiaotong University, 2009,43(2):314-317.

禹志强,吴铁辉,吴裕远,等. 氨-水和氨-水-溴化锂在吸收式制冷机中的对比实验研究 [J]. 西安交通大学学报, 2009,43(3):46-49,69.

YU Zhiqiang, WU Tiehui, WU Yuyuan, et al. Experimental comparison between ammonia-water and ammonia-water-lithium bromide in absorption chiller [J]. Journal of Xi'an Jiaotong University, 2009,43(3):46-49,69.

禹志强. 氨-水-溴化锂三元吸收式制冷系统运行性能实验研究 [D]. 西安:西安交通大学能源与动力工程学院, 2009.

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⁰

Experiment on an NH3-H2O-LiBr Absorption Chiller with Heat-Regenerators

DOI：

摘要

Abstract

关键词

Keywords

references

Experiment on an NH₃-H₂O-LiBr Absorption Chiller with Heat-Regenerators