Study On The Application Of Temperature Difference In The Evaluation Of Pipe Break Size In Recirculation Systems Based On Thermal-hydraulic Model Analysis - Info and Reading Options

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<div class="hd"> <h1> Study on the Application of Temperature Difference in the Evaluation of Pipe Break Size in Recirculation Systems Based on Thermal-hydraulic Model Analysis </h1> <div class="flex" style="border:0px;padding-bottom:0px;"> </div> <div class="bd" style="border-bottom:1px solid #ced6e0;"> <ul style="margin-top:0px;"> <li> <b> 作者： </b> <a href="https://chinaxiv.org/user/search.htm?field=author&amp;value=Hwang,%20Mr.%20Sheng-Dih" style="color:#3060cc;" rel="ugc nofollow"> Hwang, Mr. Sheng-Dih </a> <sup style="margin-left:0px;"> 1 </sup> </li> <li> <b> 作者单位： </b> <div style="margin-left:70px;margin-top:-26px;"> <div> 1. <a href="https://chinaxiv.org/user/search.htm?field=affication&amp;value=National%20Atomic%20Research%20Institute" style="color:#3060cc;" rel="ugc nofollow"> National Atomic Research Institute </a> </div> </div> </li> <li> <b> 通讯作者： </b> <a href="https://chinaxiv.org/user/search.htm?field=author&amp;value=Hwang,%20Mr.%20Sheng-Dih" style="color:#bb3536;" rel="ugc nofollow"> Hwang, Mr. Sheng-Dih </a> Email:[email protected] </li> <li> <b> 提交时间： </b> 2025-02-20 13:31:54 </li> </ul> </div> <div class="bd" style="margin-top:15px;"> <div style="line-height:24px;color:#333;"> <b> 摘要: </b> This study investigates the temperature difference between recirculation loops following an instantaneous pipeline rupture. The analysis shows that the pipe rupture leads to the conversion of energy in an open system, resulting in the coolant escaping from the broken exhibiting a lower temperature compared to the intact loop. A theoretical model based on energy balance principles effectively explains these temperature differences. Validation through the Modular Accident Analysis Program (MAAP5) simulations and training simulator results confirms that both tools accurately predict temperature changes during station blackout and loss of coolant accident scenarios. This study examines the effects of coolant pipe ruptures on the recirculation system and compares the resulting trends with the simulator data. The model can serve as a foundation for future quantitative research, enabling a deeper understanding of the recirculation system during a break transient period. The use of computer simulation codes will ensure the main phenomena, improve accident management strategies, and establish a basis for future quantitative analyses. And, the results of this study also indicate that the correlation between the temperature difference between pipelines and the break size of pipelines is more strongly assisted by the peak cladding temperature. </div> <div class="brdge"> <span class="spankwd"> <a href="https://chinaxiv.org/user/search.htm?field=keywords&amp;value=Loss%20of%20Coolant%20Accident%20(LOCA)" rel="ugc nofollow"> Loss of Coolant Accident (LOCA) </a> </span> <span class="spankwd"> <a href="https://chinaxiv.org/user/search.htm?field=keywords&amp;value=temperature%20difference" rel="ugc nofollow"> temperature difference </a> </span> <span class="spankwd"> <a href="https://chinaxiv.org/user/search.htm?field=keywords&amp;value=break%20size" rel="ugc nofollow"> break size </a> </span> <span class="spankwd"> <a href="https://chinaxiv.org/user/search.htm?field=keywords&amp;value=MAAP5" rel="ugc nofollow"> MAAP5 </a> </span> <span class="spankwd"> <a href="https://chinaxiv.org/user/search.htm?field=keywords&amp;value=piping%20cooling%20loop" rel="ugc nofollow"> piping cooling loop </a> </span> </div> <ul> <li> <b> 来自： </b> Hwang, Mr. Sheng-Dih </li> <li> <b> 分类： </b> <a href="https://chinaxiv.org/user/search.htm?field=domain&amp;value=2" rel="ugc nofollow"> 物理学 </a> &gt;&gt; <a href="https://chinaxiv.org/user/search.htm?field=subject&amp;value=40" rel="ugc nofollow"> 核物理学 </a> </li> <li> <b> 备注: </b> <a rel="ugc nofollow"> 已向《Nuclear Science and Techniques》投稿 </a> </li> <li> <b> 引用： </b> <a href="https://chinaxiv.org/abs/202502.00170" rel="ugc nofollow"> <font color="#0000FF"> ChinaXiv:202502.00170 </font> </a> (或此版本 <a href="https://chinaxiv.org/abs/202502.00170v1" rel="ugc nofollow"> <font color="#0000FF"> ChinaXiv:202502.00170V1 </font> </a> ) <br /> <a href="http://dx.doi.org/10.12074/202502.00170" style="color:#0000FF;margin-left:45px;" rel="ugc nofollow"> <font color="#0000FF"> DOI:10.12074/202502.00170 </font> </a> <br /> <a href="https://www.cstr.cn/CSTR:32003.36.ChinaXiv.202502.00170" style="margin-left:45px;" rel="ugc nofollow"> <font color="#0000FF"> CSTR:32003.36.ChinaXiv.202502.00170 </font> </a> </li> <li> <b> 科创链TXID： </b> <a href="https://sciencechain.ac.cn/realTimeNetwork/transaction/19ee7f8b-b0d2-4ff2-b524-e9a5af983a43" rel="ugc nofollow"> <font color="#0000FF"> 19ee7f8b-b0d2-4ff2-b524-e9a5af983a43 </font> </a> </li> <li> <b> 推荐引用方式： </b> <span> Hwang, Mr. Sheng-Dih.Study on the Application of Temperature Difference in the Evaluation of Pipe Break Size in Recirculation Systems Based on Thermal-hydraulic Model Analysis.中国科学院科技论文预发布平台.[DOI:10.12074/202502.00170] </span> </li> </ul> </div> <div class="ft"> <h4> <span> 版本历史 </span> </h4> <table style="font-size:14px;"> <tr> <td> <b> [V1] </b> </td> <td> 2025-02-20 13:31:54 </td> <td> ChinaXiv:202502.00170V1 </td> <td> <a class="btn" href="https://chinaxiv.org/user/download.htm?uuid=a5cd65fe-2c41-43b2-a662-0ba80f0690b6" rel="ugc nofollow"> 下载全文 </a> </td> </tr> </table> </div> </div>

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