Numerical simulation on shell-side flow pattern transition and heat transfer of non-azeotropic refrigerant mixture

He, Xinhua; Wang, Ji; Li, Zhenlin; Wan, Ran; Hu, J. F.; Yang, Zhuqiang

doi:10.1016/j.applthermaleng.2022.118917

Cited by 9 publications

(3 citation statements)

References 34 publications

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“…An increase in temperature can cause component separation and uneven mixing, which, in turn, can affect the refrigeration performance and system stability. The physical properties of the mixture also vary with the proportion of each substance present in the mixture . Therefore, when non-azeotropic mixed refrigerants are used, it is important to pay attention to their composition and usage conditions to ensure their proper use and safe operation.…”

Section: Current Status and Research Progress Of Refrigerantsmentioning

confidence: 99%

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Application of Refrigerant Cooling in a Battery Thermal Management System under High Temperature Conditions: A Review

Kang,

Hu,

Zhang

et al. 2024

ACS Omega

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Battery thermal management (BTM) is crucial for the lifespan and safety of batteries. Refrigerant cooling is a novel cooling technique that is being used gradually. As the core fluid of refrigerant cooling, refrigerants need to possess excellent properties while meeting environmental requirements. This paper elucidates the current state of refrigerants (single refrigerants and mixed refrigerants), synchronously summarizing them from the perspectives of refrigerant properties and refrigerant cooling (immersion and cold plate indirect). It outlines the advantages and disadvantages of single and mixed refrigerants as well as the research and development in the vehicle thermal management system (TMS). The choice of refrigerant directly affects cooling performance, and research on vehicle air conditioning (AC) systems can indirectly guide the BTM. R1234yf and R152a can directly replace R134a, while although R744 has a strong heating capacity, it cannot directly replace R134a. Specific mixed refrigerants reduce the global warming potential (GWP) and flammability issues, thereby improving system efficiency. Additionally, immersion cooling controls the temperature through container pressure. Coordinated control strategies are crucial for indirect cold plate cooling, offering broad prospects for optimizing the cold plate design and intelligent control. The selection of refrigerant and the optimal design of the cooling method greatly improve the thermal performance of the battery. This may promote the good development of BTM.

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Section: Current Status and Research Progress Of Refrigerantsmentioning

confidence: 99%

“…The physical properties of the mixture also vary with the proportion of each substance present in the mixture. 87 Therefore, when non-azeotropic mixed refrigerants are used, it is important to pay attention to their composition and usage conditions to ensure their proper use and safe operation.…”

Section: Current Status and Research Progress Of Refrigerantsmentioning

confidence: 99%

Application of Refrigerant Cooling in a Battery Thermal Management System under High Temperature Conditions: A Review

Kang,

Hu,

Zhang

et al. 2024

ACS Omega

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“…The tube bundle heat exchangers are widely used in seawater desalination [1,2], liquefied natural gas (LNG) plants and chemical industry [3] due to its various advantages, such as higher heat transfer coefficient, compact structure, high pressure tolerance, [4] and lower refrigerant charge [5]. The heat exchanger is the main equipment that affects the heat transfer efficiency of the industry.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Heat Transfer and Pressure Drop of Two-Phase Flow across Tube Bundles

He,

Li,

Wang

2023

JFFHMT

Self Cite

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The refrigerant two-phase flow across tube bundles is widely used. Its heat transfer mechanism needs to be further studied. An experimental system was established for measuring heat transfer coefficients, pressure drop and observing flow patterns. The test section of tube bundles was designed. R1233zd as a new environmentally friendly refrigerant was used as the working fluid. The effects of vapor quality, heat flux and mass flow rate on heat transfer and pressure drop were analyzed. The falling film flow, bubbly flow and shear flow were observed. With the increasing vapor quality and heat flux, the heat transfer coefficient increases. With the increasing vapor quality and mass flow rate, the pressure drop increases.

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Numerical simulation of flow characteristics of falling-film evaporation of R32/R134a non-azeotropic refrigerant outside a horizontal tube

Wang,

Liu,

et al. 2024

Applied Thermal Engineering

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Numerical simulation on shell-side flow pattern transition and heat transfer of non-azeotropic refrigerant mixture

Cited by 9 publications

References 34 publications

Application of Refrigerant Cooling in a Battery Thermal Management System under High Temperature Conditions: A Review

Application of Refrigerant Cooling in a Battery Thermal Management System under High Temperature Conditions: A Review

Experimental Study on Heat Transfer and Pressure Drop of Two-Phase Flow across Tube Bundles

Numerical simulation of flow characteristics of falling-film evaporation of R32/R134a non-azeotropic refrigerant outside a horizontal tube

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