翅片条件对提升管传热特性的影响

IF 0.4 Q4 ENGINEERING, CHEMICAL
Zhao Xie, Anni Hu, Hongming Fang, Shitong Liu, Lan Yi, Weirun Lan
{"title":"翅片条件对提升管传热特性的影响","authors":"Zhao Xie,&nbsp;Anni Hu,&nbsp;Hongming Fang,&nbsp;Shitong Liu,&nbsp;Lan Yi,&nbsp;Weirun Lan","doi":"10.3103/S1068364X24601252","DOIUrl":null,"url":null,"abstract":"<p>Approximate 36% of the total heat is produced by coke oven gas (COG) in the coke oven and has a great potential for recovery. In order to recover the surplus heat effectively, a water-jacketed coke oven heat exchanger is installed at the coke oven ascension pipe. However, this core unit suffers from uneven water vapor distribution on the jacket side, which leads to decreased heat transfer efficiency and localized high temperature bulging. In this study, Fluent was used to simulate a single jacketed heat exchanger to investigate the effect of fin position (water jacket side or COG side) and its number (4, 8, 12) on the heat transfer characteristics of the ascension pipe when the flow rate of cooling water on the water jacket side is 0.3 m/s at a coking time of 16 h. The results indicate that, considering the flow field, performance evaluation metrics, and practical engineering issues, it is more advantageous to install the fins on the water jacket side. Furthermore, as the number of fins on the water jacket side increases, the outlet temperature on the COG side decreases, leading to enhanced heat transfer efficiency. The heat transfer effect was optimal when the number of fins of jacketed ascension pipe heat exchanger was augmented to a total of 12.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 1","pages":"52 - 66"},"PeriodicalIF":0.4000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of Fin Condition on Heat Transfer Characteristics of Ascension Pipes\",\"authors\":\"Zhao Xie,&nbsp;Anni Hu,&nbsp;Hongming Fang,&nbsp;Shitong Liu,&nbsp;Lan Yi,&nbsp;Weirun Lan\",\"doi\":\"10.3103/S1068364X24601252\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Approximate 36% of the total heat is produced by coke oven gas (COG) in the coke oven and has a great potential for recovery. In order to recover the surplus heat effectively, a water-jacketed coke oven heat exchanger is installed at the coke oven ascension pipe. However, this core unit suffers from uneven water vapor distribution on the jacket side, which leads to decreased heat transfer efficiency and localized high temperature bulging. In this study, Fluent was used to simulate a single jacketed heat exchanger to investigate the effect of fin position (water jacket side or COG side) and its number (4, 8, 12) on the heat transfer characteristics of the ascension pipe when the flow rate of cooling water on the water jacket side is 0.3 m/s at a coking time of 16 h. The results indicate that, considering the flow field, performance evaluation metrics, and practical engineering issues, it is more advantageous to install the fins on the water jacket side. Furthermore, as the number of fins on the water jacket side increases, the outlet temperature on the COG side decreases, leading to enhanced heat transfer efficiency. The heat transfer effect was optimal when the number of fins of jacketed ascension pipe heat exchanger was augmented to a total of 12.</p>\",\"PeriodicalId\":519,\"journal\":{\"name\":\"Coke and Chemistry\",\"volume\":\"68 1\",\"pages\":\"52 - 66\"},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2025-05-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Coke and Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1068364X24601252\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Coke and Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068364X24601252","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

摘要

焦炉内焦炉煤气(COG)产生的总热量约占总热量的36%,具有很大的回收潜力。为了有效地回收余热,在焦炉提升管处安装了水套式焦炉换热器。然而,该核心装置存在夹套侧水蒸气分布不均匀的问题,导致传热效率降低,局部出现高温胀形。本研究利用Fluent软件对单夹套换热器进行了模拟,研究了当水套侧冷却水流速为0.3 m/s、焦化时间为16 h时,翅片位置(水套侧或COG侧)和翅片数量(4、8、12)对提升管换热特性的影响。结果表明:考虑流场、性能评价指标和实际工程问题,翅片安装在水套一侧更为有利。此外,随着水套侧翅片数量的增加,COG侧出口温度降低,从而提高了换热效率。当夹套提升管换热器翅片数增加到12片时,换热效果最佳。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of Fin Condition on Heat Transfer Characteristics of Ascension Pipes

Approximate 36% of the total heat is produced by coke oven gas (COG) in the coke oven and has a great potential for recovery. In order to recover the surplus heat effectively, a water-jacketed coke oven heat exchanger is installed at the coke oven ascension pipe. However, this core unit suffers from uneven water vapor distribution on the jacket side, which leads to decreased heat transfer efficiency and localized high temperature bulging. In this study, Fluent was used to simulate a single jacketed heat exchanger to investigate the effect of fin position (water jacket side or COG side) and its number (4, 8, 12) on the heat transfer characteristics of the ascension pipe when the flow rate of cooling water on the water jacket side is 0.3 m/s at a coking time of 16 h. The results indicate that, considering the flow field, performance evaluation metrics, and practical engineering issues, it is more advantageous to install the fins on the water jacket side. Furthermore, as the number of fins on the water jacket side increases, the outlet temperature on the COG side decreases, leading to enhanced heat transfer efficiency. The heat transfer effect was optimal when the number of fins of jacketed ascension pipe heat exchanger was augmented to a total of 12.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Coke and Chemistry
Coke and Chemistry ENGINEERING, CHEMICAL-
CiteScore
0.70
自引率
50.00%
发文量
36
期刊介绍: The journal publishes scientific developments and applications in the field of coal beneficiation and preparation for coking, coking processes, design of coking ovens and equipment, by-product recovery, automation of technological processes, ecology and economics. It also presents indispensable information on the scientific events devoted to thermal rectification, use of smokeless coal as an energy source, and manufacture of different liquid and solid chemical products.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信