车载扩散吸收式冰箱的优化设计
发布时间：2018-12-18 14:45
【摘要】：扩散吸收式制冷可以采用燃气、燃油等产生的热量驱动氨-氦工质循环进行制冷，由于不受电网束缚，在电力不稳定区域、军事拉练、自然灾害区域血液等的保存具有重要意义。 本文对采用天然工质氨水做制冷剂的扩散吸收系冰箱进行了系统热力模型建模、热力计算，并对关键部件进行了优化设计。通过对系统的理论计算和参数优化，设计了基于汽车尾气余热利用的车载扩散吸收式冰箱。 本文重点分析了汽车尾气余热制冷领域国内外研究成果及存在的问题，为下一步的数学建模、理论计算和结构设计提供帮助；建立了扩散吸收系冰箱关键部件的数学模型，对氨—水工质的热力学性质进行了深入研究，建立了主要部件的数学模型，并对每一部份进行了详尽的热力计算，，为扩散吸收式冰箱的设计提供了理论依据；根据热力计算结果对扩散吸收式制冷冰箱进行了结构优化设计；最后通过实验，采用固定其他参数，改变某一参数的实验方法，对单一因素变化对系统的影响情况作了分析，从而确定适合本系统的最佳参数。。 本文创新点，一是建立了扩散吸收系冰箱关键部件的数学模型，为设计提供了理论依据；二是对氨—水工质配比等关键参数进行了分析优化，针对本系统提出了最佳的方案。
[Abstract]:Diffusion absorption refrigeration can be cooled by the heat generated by gas, fuel, etc. The ammonia helium refrigerant cycle can be used for refrigeration. Since it is not bound by the power grid, it can be used for military training in areas with unstable power. The preservation of regional blood in natural disasters is of great significance. In this paper, the system thermodynamic model and thermodynamic calculation of diffusion-absorbent refrigerators with natural working fluid ammonia as refrigerant are carried out, and the key components are optimized. Based on the theoretical calculation and parameter optimization of the system, a vehicle diffusion absorption refrigerator is designed based on the utilization of residual heat from automobile exhaust. This paper focuses on the analysis of domestic and foreign research results and existing problems in the field of automotive exhaust waste heat refrigeration, which provides the help for the next step of mathematical modeling, theoretical calculation and structure design. The mathematical model of the key parts of the diffusion-absorbent refrigerator is established, the thermodynamic properties of the ammonia-hydraulic properties are studied in depth, the mathematical models of the main components are established, and the detailed thermodynamic calculations are carried out for each part. It provides a theoretical basis for the design of diffusion absorption refrigerator. According to the results of thermal calculation, the structure optimization design of diffusion-absorption refrigeration refrigerator is carried out. Finally, the influence of single factor on the system is analyzed by using the experimental method of fixing other parameters and changing one parameter, and the optimum parameters suitable for the system are determined. The innovation of this paper is to establish the mathematical model of the key parts of the diffusion-absorbent refrigerator, which provides the theoretical basis for the design, and the second is to analyze and optimize the key parameters such as the ratio of ammonia to water, and to put forward the best scheme for the system.
【学位授予单位】：齐鲁工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TB657.4
[Abstract]:Diffusion absorption refrigeration can be cooled by the heat generated by gas, fuel, etc. The ammonia helium refrigerant cycle can be used for refrigeration. Since it is not bound by the power grid, it can be used for military training in areas with unstable power. The preservation of regional blood in natural disasters is of great significance. In this paper, the system thermodynamic model and thermodynamic calculation of diffusion-absorbent refrigerators with natural working fluid ammonia as refrigerant are carried out, and the key components are optimized. Based on the theoretical calculation and parameter optimization of the system, a vehicle diffusion absorption refrigerator is designed based on the utilization of residual heat from automobile exhaust. This paper focuses on the analysis of domestic and foreign research results and existing problems in the field of automotive exhaust waste heat refrigeration, which provides the help for the next step of mathematical modeling, theoretical calculation and structure design. The mathematical model of the key parts of the diffusion-absorbent refrigerator is established, the thermodynamic properties of the ammonia-hydraulic properties are studied in depth, the mathematical models of the main components are established, and the detailed thermodynamic calculations are carried out for each part. It provides a theoretical basis for the design of diffusion absorption refrigerator. According to the results of thermal calculation, the structure optimization design of diffusion-absorption refrigeration refrigerator is carried out. Finally, the influence of single factor on the system is analyzed by using the experimental method of fixing other parameters and changing one parameter, and the optimum parameters suitable for the system are determined. The innovation of this paper is to establish the mathematical model of the key parts of the diffusion-absorbent refrigerator, which provides the theoretical basis for the design, and the second is to analyze and optimize the key parameters such as the ratio of ammonia to water, and to put forward the best scheme for the system.
【学位授予单位】：齐鲁工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TB657.4
【参考文献】
相关期刊论文 前10条
1 王磊,陆震;吸收式制冷系统动态模型的分析与建立[J];东华大学学报(自然科学版);2003年03期
2 徐士鸣,李革,张卫民;以氨-水溶液为工质的制冷/制热潜能储存系统特性研究[J];大连理工大学学报;2004年02期
3 苏芬仙,敖越,苏华,陈凌霜;引射吸收式制冷循环[J];低温工程;2001年01期
4 李化治,崔胜国,王立;对影响扩散—吸收式冰箱COP热力参数的分析[J];低温与特气;2000年06期
5 郑丹星,陈斌,齐云,金红光;新型氨吸收式动力/制冷复合循环的热力学分析[J];工程热物理学报;2002年05期
6 曾令t
本文编号：2385997
本文链接：https://www.wllwen.com/guanlilunwen/gongchengguanli/2385997.html
