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Journal of Thermal Science 2006年第4期15卷 337-341页

作者： Dapeng HU Shengtao cheN Hu LIU Zuzhi cheN che zhu Institute of chemical Engineering Dalian University of Technology Dalian Liaoning China

The contact face and shock wave motion in an open ends receiving tube of gas wave refrigerator are investigated numerically and experimentally. The results show that, velocity of the contact face rises rapidly as gas is injected into the receiving tube, and drops sharply after a steady propagation. However, velocity of the shock wave in the tube is almost linear. With increasing of inlet pressure, velocity of the shock wave and steady velocity of contact face also increase. In addition, time and distance of contact face propagation in the receiving tube become longer.

关键词： contact face shock wave receiving tube gas wave refrigerator

Study on Wall Temperature Distribution of Oscillating Tube

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Journal of Thermal Science 2009年第3期18卷 246-252页

作者： Dapeng HU Peiqi LIU Wenjing ZHAO che zhu Yudong WANG Yuqiang DAI Jiupeng ZOU Institute of chemical Engineering Dalian University of Technology Dalian 116012 Liaoning China Xin Jiang Xin Jie co. Ltd Wulumuqi 830011 Xinjiang China

The wall temperature distribution and heat transfer process of the oscillating tube have been investigated in thispaper using both numerical simulation and experimental method. The wall temperature of oscillating tube increasesrapidly in the inlet and then decreases slowly, moreover, the rally phenomenon of wall temperature nearthe closed end is observed. With the increase of jet flow frequency, the highest wall temperature increases and thelocation of that moves towards the inlet. The velocity of pressure wave in the oscillating tube almost remainsconstant even its intensity changes. The quantity of heat transfer between the gas and inner wall of the oscillatingtube determines the wall temperature of every location, and the pressure wave disturbance can cause the heattransfer quantity change. Each pressure wave has its own disturbance range. The wall temperature distribution canbe explained by the change of pressure wave intensity and its disturbance time. Besides, the step and rally of walltemperature are discussed, which shows that the conditions of heat transfer can be improved due to intersection orreflection of pressure waves.

关键词： thermal separator oscillating tube pressure wave numerical simulation.

Study on gas and wave in a receiving tube

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Journal of Thermal Science 2008年第2期17卷 170-174页

作者： Dapeng Hu Shengtao chen Jun Yang Zuzhi chen Yuqiang Dai che zhu Runjie Liu Institute of chemical Engineering Dalian University of Technology Dalian Liaoning China

The gas and wave＇s motion in a receiving tube are investigated numerically and experimentally in the present paper. The results show that, velocity of the contact face rises rapidly as gas is injected into the receiving tube, and then drops sharply after a steady propagation. However, velocity of the wave in the tube is almost linear and the wave can be reflected at the close end of the receiving tube. With increasing of inlet pressure, velocity of the wave and steady velocity of contact face also increase. There is obvious thermal effect as the wave sweeps the gas. The reflected wave can heat the exhausting gas in the open end. As an absorber, an expander and a shrink in the robe can almost completely absorb the reflected wave.

关键词： contact face wave receiving tube absorber

Implementing Marine XML for Observed CTD Data in a Marine Data Exchange Platform

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Journal of Ocean University of China 2008年第4期7卷 393-396页

作者： JIANG Yongguo FENG Yuan che Zhaodong zhu Tieyi College of Information Science and Engineering Ocean University of China Qingdao 266100 P. R. China

In order to archive, quality control and disseminate a large variety of marine data in a marine data exchange platfonn, a marine XML has been developed to encapsulate marine data, which provides an efficient means to store, transfer and display marine data. This paper first presents the details of the main marine XML elements and then gives an example showing how to transform CTD-observed data into Marine XML format, which illustrates the XML encapsulation process of marine observed data.

关键词： marine data CTD marine XML marine data exchange

Feasibility of Intermediate Fluid Vaporizer with Spiral Wound Tubes

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China Petroleum Processing & Petrochemical Technology 2013年第1期15卷 73-77页

作者： Liu Fengxia Dai Yuqiang Wei Wei Zou Jiupeng zhu che Dong Chao Hu Dapeng School of chemical Machinery Engineering Dalian University of Technology

A novel intermediate fluid vaporization (IFV) technology for LNG re-gasification process with spiral-wound heat exchanging tubes is proposed. The new IFV project combines the advantage of running the shell and tube heat exchangers at high pressure with the advantage of compact space of heat exchangers. Thermal analysis on the two processes of forced convection and vaporization type heat transfer in the spiral wound tubes and vapor condensation /re-boiling type of heat transfer via intermediate fluid in shell side shows the feasibility of this promising technology.

关键词： spiral-wound heat exchanger intermediate fluid type vaporizer LNG vaporizer

A BIRD'S EYE VIEW OF THE SNOWLAND

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China's Tibet 2004年第4期15卷 4-5页

作者： YUAN XUEJUN,che FU & YUAN zhu

维普期刊数据库评论

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振荡管复合阻尼陷波

化工学报 2001年第5期52卷 379-380页

作者：李学来朱彻福州大学化工系福建福州350002 大连理工大学化机系辽宁大连116012

A new concept,compound damp drip for absorbing shock wave in oscillatory tube,is developed in the present *** main idea of the concept is that the shock wave absorber must has the two functions,that is,it can not only exhaust the energy of the incident shock wave fully but also transfer the energy out *** the experiment,the compound damp drip is structured with a multi-orifice for intensifying the energy dissipation of the shock wave and an internal cooling system for strengthening the heat *** experimental results show that a strong reflect shock wave,whose strength is 66%of the incident shock wave ,is measured at the position of the relative tube length x/L =0.3 when the oscillatory tube without the compound damp ***,after the compound damp drip is amounted at the closed end of the tube,the reflect shock wave is eliminated effectively and the refrigerating efficiency η is increased by 4?%～10?% in case of the L/d ratio is 140 and the expansion ratio ε is changed from 2.0 to *** is more ,the refrigerating efficiency in case of L/d =140 and the tube is mounted with the compound damp drip is still higher by 2?%～6?% than that the tube without damp drip but L/d =*** above result means that while the damp drip is used,the refrigerating efficiency can be increased and the size of the refrigerator can be decreased significantly.

关键词：压力波制冷机激波振荡管热分离器复合阻尼陷波

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一种削弱振荡管内反射激波能量的方法

化工学报 2008年第3期59卷 562-566页

作者：胡大鹏刘培启朱彻大连理工大学化工学院辽宁大连116012

激波吸收腔是影响热分离机效率的重要结构,采用数值模拟和实验的方法对其进行研究,结果表明:数值模拟能够捕捉振荡管内激波和接触面两个间断;反射激波压力最大值随吸收腔直径比D/d增加而减小,随吸收腔长径比L/d增加而降低。提出一种实... 详细信息

激波吸收腔是影响热分离机效率的重要结构,采用数值模拟和实验的方法对其进行研究,结果表明:数值模拟能够捕捉振荡管内激波和接触面两个间断;反射激波压力最大值随吸收腔直径比D/d增加而减小,随吸收腔长径比L/d增加而降低。提出一种实用的吸收腔结构——串联吸收腔,对比2个和3个吸收腔串联结构后,证明在膨胀比α<6范围内2个吸收腔串联结构是最佳选择。

关键词：热分离机反射激波振荡管消波技术

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企业违规对社会责任报告及其价值效应的影响

经济管理 2018年第10期40卷 58-74页

作者：车笑竹苏勇复旦大学管理学院上海200433

本文结合组织合法性理论与利益相关者理论,将违规行为引入对企业发布社会责任报告的动机和效果的考察中,为探索影响企业社会责任信息披露的动态因素、厘清社会责任报告与企业价值间的关系提供了新的视角。通过对中国A股上市公司2010—2... 详细信息

本文结合组织合法性理论与利益相关者理论,将违规行为引入对企业发布社会责任报告的动机和效果的考察中,为探索影响企业社会责任信息披露的动态因素、厘清社会责任报告与企业价值间的关系提供了新的视角。通过对中国A股上市公司2010—2015年间数据的实证分析结果显示:违规企业更倾向于自愿发布社会责任报告以修复组织合法性。进一步研究发现,违规行为存在与否显著影响社会责任报告质量与企业价值的关系。尽管社会责任报告披露质量对企业价值有正向提升作用,但这一机制仅对无违规行为的企业成立,发生过违规行为的企业无法通过发布高质量的社会责任报告来提升企业价值。本文所获结论创新性地丰富了企业社会责任信息披露领域的研究成果,并为企业社会责任实践带来重要的启示。

关键词：企业社会责任报告违规行为企业价值

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乙肝患者使用后胃镜清洗效果的检测

中国内镜杂志 2008年第10期14卷 1084-1086页

作者：朱大磊车筑萍湖南省邵阳市中心医院消化科湖南邵阳422000 贵阳医学院附院贵州贵阳550004

目的了解乙肝患者完成检查后的胃镜经清洗、消毒后HBV的检测情况,评价清洗在内镜重复处理中的作用及内镜重复使用的安全性。方法30例HBSAg阳性患者(未活检)完成检查后的胃镜采用肯格王清洗中心清洗、消毒,分别于检查后、刷洗冲洗后、酶... 详细信息

目的了解乙肝患者完成检查后的胃镜经清洗、消毒后HBV的检测情况,评价清洗在内镜重复处理中的作用及内镜重复使用的安全性。方法30例HBSAg阳性患者(未活检)完成检查后的胃镜采用肯格王清洗中心清洗、消毒,分别于检查后、刷洗冲洗后、酶洗冲洗后、消毒冲洗后经活检孔采样行荧光PCRHBV-DNA检测。结果30支HBSAg阳性患者使用后的胃镜9支采样液检测病毒量变化在5.02×102～6.69×106拷贝/mL,清洗后9条中仅1支采样液病毒量<6.80×102拷贝/mL,清洗前后样本阳性率差异有显著性(P<0.05)。结论遵循《内镜清洗消毒技术规范》,采用肯格王清洗中心清洗可有效地清除黏附的乙肝病毒,再处理后内镜的重复使用是安全的。

关键词：乙肝胃镜清洗检测多聚酶链反应