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Frontiers of Metallurgical Industry 2024年第1期2卷 27-30页

作者： Kong Peng Xinjiang Bayi Iron and Steel Co. Ltd.

Based on the temperature situation during the rolling process of 4200 mm/3500 mm medium and thick plates at Baosteel,this article analyzes the influencing factors of temperature changes during the rolling process from the perspective of heat transfer theory and the temperature change law during the rolling process.The temperature loss during the four rolling processes is tracked on site,and the temperature drop model parameters during the rolling process of 4200mm/3500mm medium and thick plates at Baosteel are quantitatively provided.It is applied to actual rolling production and has achieved good results.

关键词： medium thickness plate rolling process temperature drop

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An experimental study on the choked flow characteristics of CO_(2) pipelines in various phases

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Chinese Journal of Chemical Engineering 2021年第4期34卷 17-26页

作者： Yuxing Li Shuaiwei Gu Datong Zhang Qihui Hu Lin Teng Cailin Wang Shandong Provincial Key Laboratory of Oil&Gas Storage and Transportation Security China University of Petroleum(East China)Qingdao 266555China Department of Energy and Power Engineering Tsinghua UniversityBeijing 100084China

High pressure pipeline transportation has been an established technology for economically transporting large amounts of CO_(2).However,there are still issues and associated risks that have to be effectively addressed and adequately understood.It is well known that a strong JouleThomson Cooling effect can occur when pressurized CO_(2) flows through a choke valve.Thus,to investigate the choking characteristics especially the temperature drop of high pressure CO_(2),a new laboratory scale experimental setup(total length of 14.85 m and the inner diameter of 15 mm)was constructed.Steady choked flow and transient choked flow tests were carried out respectively for pressurized CO_(2) in various initial phases.The phase transitions and temperature drop characteristics were then studied following the choked flow and the results show that the phase transitions in steady choked flow differs significantly from that in transient choked flow.For transient choked flow of various initial phases,all the flows downstream would transfer from single phase to gas-liquid twophase flow.Furthermore,the effect of water on transient choked flow of supercritical CO_(2) pipeline was investigated,and the phenomena of solid particles deposition was captured which was paramount importance of ensuring the safety operation of CO_(2)pipelines when throttling by the choke valves.

关键词： CO^(2)pipeline Steady choked flow Transient choked flow Water temperature drop

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Simulation of Thermal Insulation of Top-Surface Slag Layers in Continuous Casting Mold

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Journal of Iron and Steel Research(International) 2011年第10期18卷 29-33页

作者： WANG Qiang WU Ye-ming QIU Sheng-tao ZHAO Pei National Engineering Research Center of Continuous Casting Technology Central Iron and Steel Research Institute Beijing 100081 China

A computational model of thermal behavior of the top-surface slag layers in continuous casting mold was applied to interpret the thermal insulation of mold powder. The temperature drop of liquid steel caused by heat re moral at the interface of molten steel and slag in mold was proposed to evaluate the thermal insulation of mold slag. The calculation results show that slag consumption is one of important factor influencing the temperature drop, while the casting speed has no obvious effect on it. With the increase of slag consumption, the temperature drop is increased.

关键词： thermal insulation temperature distribution heat flux temperature drop

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