Dynamic optimization for gas blending in pipeline networks with gas interchangeability control

摘要

Abstract >The increasing penetration of unconventional gas and liquefied natural gas poses an operational challenge on existing regional gas networks for gas quality problems. A new dynamic model for natural gas pipeline network with multiple supplies is presented with a special emphasis on gas interchangeability control. Wobbe index serves as gas interchangeability indicator and is calculated by equations derived from rigorous composition‐based partial differential equations. Disjunctive formulation is applied to represent different modes of gas blending due to gas reversal, and the disjunctive model is then reformulated as a nonsmooth model with min/max and absolute value functions, which is solved by a gradient‐based nonlinear program solver after smooth approximation. Moreover, a heuristic algorithm is proposed to tune the penalty parameters in order to focus on different penalty terms while keeping the model well‐conditioned. The developed model and strategy are first tested with a small pipeline network model and then extended to a large model. The results show that the model can effectively manage gas interchangeability issues in pipeline networks within reasonable CPU time. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> >不传统气体和液化天然气的普遍渗透对现有的地区气体网络进行了气体质量问题的操作挑战。具有多种耗材的天然气管道网络的新动态模型，特别强调气体互换性控制。 WOBBE索引用作气体互换性指示器，并通过从基于严格的组成的部分微分方程衍生的方程来计算。拆除配方应用于代表由于气体反转引起的不同方式的气体混合模式，然后将拆除模型重新加压为具有Min / MAX和绝对值函数的非光滑模型，通过梯度的非线性程序解器解决了平滑近似之后。此外，提出了一种启发式算法来调整惩罚参数，以便关注不同的惩罚术语，同时保持模型条件。开发的模型和策略首先用小型管道网络模型测试，然后扩展到大型模型。结果表明，该模型可以在合理的CPU时间内有效地管理管道网络中的气体互换性问题。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-18537/'>《AIChE Journal》</a> <b style="margin: 0 2px;">|</b><span>2020年第5期</span><b style="margin: 0 2px;">|</b><span>共13页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/238.html" title="化学工业">化学工业;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=dynamic optimization&option=203" rel="nofollow">dynamic optimization;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gas blending&option=203" rel="nofollow">gas blending;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gas interchangeability&option=203" rel="nofollow">gas interchangeability;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=pipeline network&option=203" rel="nofollow">pipeline network;</a> </p> <div class="translation"> 机译：动态优化;气体混合;气体互换性;管道网络; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div 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Operations are not optimized and quantitative revolution is not optimized, the number of revolution is not optimized is larger than the number of optimization revolution; installation of geodynamic power; geostationary park.</a> <b>[P]</b> . <span> 外国专利：  CL2013002816A1 </span> <span> . 2014-03-07</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：控制EORICA能源设备的程序已连接到电网和发电机的气动转子（可调节转数），可在其中安装EORICA能源以在过渡期内运行或永久在PEN中运行。操作未优化，定量转未优化，未优化的转数大于优化的转数;安装地球动力;地球静止公园。 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" 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