| 基于负荷特性的区域供冷系统节能性分析 |
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| 引用本文： | 彭友辉,连之伟,付海明.基于负荷特性的区域供冷系统节能性分析[J].东华大学学报(自然科学版),2011,37(1):109-114. |
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| 作者姓名： | 彭友辉 连之伟 付海明 |
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| 作者单位： | 1. 上海交通大学,机械与动力工程学院,上海,200240
2. 东华大学,环境科学与工程学院,上海,201620 |
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| 基金项目： | 上海市科委科技攻关计划资助项目 |
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| 摘 要： | 区域供冷技术在国内多个重大项目中得以应用,但是从实际运行效果来看节能性并不理想,造成这种结果的原因很大程度上归结于区域供冷技术的应用未具备良好的区域负荷特性.因此,通过理论分析区域负荷特性对区域供冷系统各组成部分能耗的影响,探讨在已有的"供冷半径"概念上提出区域负荷特性指标这个综合概念,用于评价区域供冷技术实现节能性所需具备的负荷特性条件.分析结果认为,区域负荷特性需综合考虑最大管长距离、区域供冷峰值负荷、时间加权平均负荷率和总管长4个指标.
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| 关 键 词： | 区域供冷 区域负荷特性 能效比 供冷半径 |
Discussion on the Energy Efficiency of District Cooling System Based on Load Characteristics |
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| PENG You-hui,LIAN Zhi-wei,FU Hai-ming.Discussion on the Energy Efficiency of District Cooling System Based on Load Characteristics[J].Journal of Donghua University,2011,37(1):109-114. |
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| Authors: | PENG You-hui LIAN Zhi-wei FU Hai-ming |
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| Institution: | 1.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China;2.School of Environmental Science & Engineering,Donghua University,Shanghai 201620,China) |
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| Abstract: | District cooling system(DCS)was applied to a number of major projects in China,but their operational energy efficiency was not satisfactory.The reason for these results could be largely attributed to ignore that the application of district cooling technology must be established on good district load characteristics.Therefore,based on theoretical analysis how district load characteristics influence energy consumption,a new comprehensive concept of district load characteristics index has been proposed to evaluate the necessary load characteristics conditions need to achieve energy saving.The results reveal the largest long-distant pipe,district cooling peak load,time weighted average load rate,total pipe length are included in the new concept. |
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| Keywords: | district cooling district load characteristics energy efficiency ratio cooling radius |
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