区域供冷系统二次管网的优化设计 Optimal design of secondary piping network in district cooling systems.pdfVIP
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区域供冷系统二次管网的优化设计 Optimal design of secondary piping network in district cooling systems
暖通空调HVAC2010年第40卷第1期 设计参考 ·33· 区域供冷系统二次管网的 优化设计* 华南理工大学康英姿☆华贲 摘要分析了区域供冷系统二次管网的优化设计方法,建立了管径非连续变化的区域供 冷系统二次管网的优化设计模型,并提出了求解方法。在对某区域供冷系统二次管网工程实 例进行优化的基础上,进一步分析了传统设计与优化设计方法下二次管网经济性的差异。结 果表明,优化设计方法通过权衡二次管网的初投资与二次泵的运行费用,使得二次管网在整个 寿命周期内经济性较优;相对于经济流速分别取0.8,1.8,2.5m/s时假设流速法的计算结果, 采用优化设计方法可分别节省寿命周期费用14.3%,16.2%,39.9%。 关键词二次管网优化设计初投资运行费用 of network Optimal secondary design piping indistrict systems cooling J.kand ByKongYingz HuoBen Abstract the the modelofthe Analysesoptimalmethod,developsoptimaldesign secondary design coversthe in the method. network,whichdiscontinuous diameter,and piping changepipe presentssolving ofanactual theeconomic and Basedon differenceofconventional optimization case,analyses optimal method.Itisconcludedthatthe costof networkcanbereduced life design cycle secondarypiping by via theinitialinvestmentofthe networkandthe optimaldesignweighing secondarypiping power of chilledwater withthe resultsofconventional consumptionsecondary pumps.Comparingcalculating methodwitheconomicalflow of methodcansavelife design velocity0.8,1.8,2.5m/s,optimaldesign cost cycleby14.3%·16.2%·39.9%respectively
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