Experimental study on the flexural strength and combustion characteristics of noise reduction materials for ultra-high voltage large oil filling equipment

IF 5.4 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-09-21 DOI:10.1016/j.tsep.2025.104132

Fengju Shang , Xinyang Fan , Shixiang Liu , Jiaqing Zhang , Guocheng Ding , Xiepeng Sun , Fei Tang , Xiaolei Zhang

{"title":"Experimental study on the flexural strength and combustion characteristics of noise reduction materials for ultra-high voltage large oil filling equipment","authors":"Fengju Shang , Xinyang Fan , Shixiang Liu , Jiaqing Zhang , Guocheng Ding , Xiepeng Sun , Fei Tang , Xiaolei Zhang","doi":"10.1016/j.tsep.2025.104132","DOIUrl":null,"url":null,"abstract":"<div><div>This paper investigates the pyrolytic properties, combustion behaviors, thermal stability and mechanical properties of noise reduction materials for use in ultra-high voltage large oil filling equipment. Thermogravimetric analysis (TGA) and flexural strength tests were performed on each material to assess thermal decomposition and structural integrity. Experiments were also carried out using a Cone Calorimeter to assess ignition behaviors, heat release rate (HRR), mass loss rate (MLR), carbon monoxide (CO) generation and smoke generation at different external radiant heat flows (ERHF: 10, 25 and 45 kW/m<sup>2</sup>). Thermogravimetric analyses revealed significant differences in thermal stability: material #4 had the highest onset decomposition temperature (<em>T<sub>onset</sub></em> = 274 and 288 °C), while material #7 had the lowest onset decomposition temperature (<em>T<sub>onset</sub></em> = 207 and 251 °C) at 10K/min and 20K/min heating rate, respectively. Compressive strength analyses showed that #2 (12.1 MPa) and #6 (10.7 MPa) were the strongest materials, and their stability was affected by compositional homogeneity. The results of combustion behaviors showed that materials #1 and #3 ignited under high ERHF (45 kW/m<sup>2</sup>) conditions at 208 and 141 s respectively, while the other materials did not catch fire. The HRR curves indicated that materials ignited under high ERHF conditions exhibited a sharp increase in HRR, which then decreased when combustion could no longer be sustained. The MLR of the materials increased with ERHF but remained relatively stable across materials, suggesting a comparable fire hazard. Considering the above performances, it concludes that materials #4, #5 and #7 are the relatively potential choices to be employed. This study may provide important insights into the selection of noise reduction materials to ensure the operational safety and fire performance of ultra-high voltage large oil filling equipment.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"67 ","pages":"Article 104132"},"PeriodicalIF":5.4000,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thermal Science and Engineering Progress","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451904925009230","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

This paper investigates the pyrolytic properties, combustion behaviors, thermal stability and mechanical properties of noise reduction materials for use in ultra-high voltage large oil filling equipment. Thermogravimetric analysis (TGA) and flexural strength tests were performed on each material to assess thermal decomposition and structural integrity. Experiments were also carried out using a Cone Calorimeter to assess ignition behaviors, heat release rate (HRR), mass loss rate (MLR), carbon monoxide (CO) generation and smoke generation at different external radiant heat flows (ERHF: 10, 25 and 45 kW/m²). Thermogravimetric analyses revealed significant differences in thermal stability: material #4 had the highest onset decomposition temperature (T_onset = 274 and 288 °C), while material #7 had the lowest onset decomposition temperature (T_onset = 207 and 251 °C) at 10K/min and 20K/min heating rate, respectively. Compressive strength analyses showed that #2 (12.1 MPa) and #6 (10.7 MPa) were the strongest materials, and their stability was affected by compositional homogeneity. The results of combustion behaviors showed that materials #1 and #3 ignited under high ERHF (45 kW/m²) conditions at 208 and 141 s respectively, while the other materials did not catch fire. The HRR curves indicated that materials ignited under high ERHF conditions exhibited a sharp increase in HRR, which then decreased when combustion could no longer be sustained. The MLR of the materials increased with ERHF but remained relatively stable across materials, suggesting a comparable fire hazard. Considering the above performances, it concludes that materials #4, #5 and #7 are the relatively potential choices to be employed. This study may provide important insights into the selection of noise reduction materials to ensure the operational safety and fire performance of ultra-high voltage large oil filling equipment.

查看原文本刊更多论文

超高压大型充油设备降噪材料抗弯强度及燃烧特性试验研究

研究了超高压大型充油设备用降噪材料的热解性能、燃烧性能、热稳定性和力学性能。对每种材料进行热重分析（TGA）和弯曲强度测试，以评估热分解和结构完整性。采用锥形量热仪对不同外源辐射热流量（ERHF: 10、25和45 kW/m2）下的点火行为、放热率（HRR）、质量损失率（MLR）、一氧化碳（CO）生成量和烟雾生成量进行了研究。热重分析显示了热稳定性的显著差异：材料#4在10K/min和20K/min加热速率下的起始分解温度最高（Tonset = 274和288°C），而材料#7的起始分解温度最低（Tonset = 207和251°C）。抗压强度分析表明，2号（12.1 MPa）和6号（10.7 MPa）的抗压强度最强，其稳定性受成分均匀性的影响。燃烧行为结果表明，材料#1和#3在高ERHF （45 kW/m2）条件下分别在208和141 s点燃，而其他材料没有着火。HRR曲线表明，在高ERHF条件下点燃的材料HRR急剧增加，当燃烧不能持续时，HRR下降。材料的MLR随着ERHF的增加而增加，但在不同材料之间保持相对稳定，表明具有相当的火灾危险。综合以上性能，得出4、5、7号材料是比较有潜力的选择。本研究可为特高压大型充油设备降噪材料的选择提供重要参考，确保设备运行安全和消防性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.