Categorization of R134a flow-induced vibration and noise in multi-conditions and effect of thermal load on the vibration in automobile air conditioning

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2024-11-26 DOI:10.1016/j.csite.2024.105558

Xin-Gang Zhu, Dong-Qing Zhu, Ming-Yu Shi, Zhi-Fu Zhou, Qin Zhao, Wen-Yu Jia, Ji-Xin Zhang, Rui Zhang

{"title":"Categorization of R134a flow-induced vibration and noise in multi-conditions and effect of thermal load on the vibration in automobile air conditioning","authors":"Xin-Gang Zhu, Dong-Qing Zhu, Ming-Yu Shi, Zhi-Fu Zhou, Qin Zhao, Wen-Yu Jia, Ji-Xin Zhang, Rui Zhang","doi":"10.1016/j.csite.2024.105558","DOIUrl":null,"url":null,"abstract":"The gurgling and hiss noise near thermal expansion valve (TXV) in automobile air conditioning gradually become prominent. However, the causes of noise from the flow-induced vibration (FIV) have not been confirmed. In this paper, the vibration, noise and R134a-flow patterns are recorded synchronously to investigate the FIV causes in multi-conditions. Based on different flow patterns at TXV inlet, all conditions are categorized into four types to explore the relationship of flow patterns, FIV and noise. Then two causes are summarized. Firstly, the intermittent liquid-phase FIV is attributed to the intensive evaporation in a throttling process and mainly occurs in transition from liquid-phase flow to mist flow. Secondly, the sustaining two-phase FIV occurs as long as the gas of two-phase flow accelerates through TXV. For liquid-phase FIV, the pressure drop in two-phase region and vapor quality determined by thermal load always show positive correlation with vibration. For two-phase FIV, the annular-wavy flow increases amplitude of vibration peaks, but they are distributed at the similar frequency band regardless of thermal load and flow pattern. The vibration peaks of X, Y and Z are mainly distributed at 6000 Hz–9000 Hz. Decreasing thermal load reduces Y-vibration peak by 83.7 %.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"260 1","pages":""},"PeriodicalIF":6.4000,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Studies in Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.csite.2024.105558","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"THERMODYNAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

The gurgling and hiss noise near thermal expansion valve (TXV) in automobile air conditioning gradually become prominent. However, the causes of noise from the flow-induced vibration (FIV) have not been confirmed. In this paper, the vibration, noise and R134a-flow patterns are recorded synchronously to investigate the FIV causes in multi-conditions. Based on different flow patterns at TXV inlet, all conditions are categorized into four types to explore the relationship of flow patterns, FIV and noise. Then two causes are summarized. Firstly, the intermittent liquid-phase FIV is attributed to the intensive evaporation in a throttling process and mainly occurs in transition from liquid-phase flow to mist flow. Secondly, the sustaining two-phase FIV occurs as long as the gas of two-phase flow accelerates through TXV. For liquid-phase FIV, the pressure drop in two-phase region and vapor quality determined by thermal load always show positive correlation with vibration. For two-phase FIV, the annular-wavy flow increases amplitude of vibration peaks, but they are distributed at the similar frequency band regardless of thermal load and flow pattern. The vibration peaks of X, Y and Z are mainly distributed at 6000 Hz–9000 Hz. Decreasing thermal load reduces Y-vibration peak by 83.7 %.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.