| 二级网燃气调峰集中供热系统优化设计 |
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| 引用本文： | 郑雪晶,由世俊,张欢,姜南. 二级网燃气调峰集中供热系统优化设计[J]. 天津大学学报(自然科学与工程技术版), 2007, 40(8): 948-951 |
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| 作者姓名： | 郑雪晶 由世俊 张欢 姜南 |
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| 作者单位： | 天津大学环境科学与工程学院 天津300072(郑雪晶，由世俊，张欢)，天津大学建筑工程学院 天津300072(姜南) |
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| 摘 要： | 由于室外气温变化引起热负荷波动和集中供热热源的供热量频繁变化,导致热源热效率下降、能源浪费.在二级网设置燃气调峰锅炉的集中供热系统,通过延长主热源燃煤锅炉在额定工况下的运行时间,以提高锅炉的平均运行效率.为优化此类系统,以运行能耗费用经济为目标,建立了单变量有约束非线性规划数学模型.以实际供热系统为例,确定了计算最佳一级网设计负荷占系统设计热负荷的比例、燃气调峰锅炉的最佳启动温度及调峰运行时间的方法,为该类型供热系统的设计与运行提供了理论依据.
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| 关 键 词： | 集中供热 二级网 调峰 运行费用 |
| 文章编号： | 0493-2137（2007）08-0948-04 |
| 修稿时间： | 2006-12-12 |
Optimal Design of District Heating System with Gas-Fired Peak Load Regulating Boiler in the Secondary Network |
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| ZHENG Xue-jing,YOU Shi-jun,ZHANG Huan,JIANG Nan. Optimal Design of District Heating System with Gas-Fired Peak Load Regulating Boiler in the Secondary Network[J]. Journal of Tianjin University(Science and Technology), 2007, 40(8): 948-951 |
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| Authors: | ZHENG Xue-jing YOU Shi-jun ZHANG Huan JIANG Nan |
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| Affiliation: | 1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; 2. School of Civil Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Heat output from district heating(DH) varied significantly to match the heat load variation caused by outdoor temperature,resulting in the decrease in energy efficiency of the heat source and waste of energy.In DH system with gas-fired peak load regulating boiler in the secondary network,by extending run time of base load boiler under rated condition,the mean energy efficiency was increased.To optimize this kind of system,the problem was formulated as a mathematical model,which was a monovariant nonlinear constraint programming with one objective to minimize the operational cost,and a real case was discussed as an example to obtain the optimal ratio of base load to total load,starting temperature and run time of gas-fired peak load regulating boiler.The present work can provide theoretical basis for optimal design and operation of this kind of DH system. |
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| Keywords: | district heating secondary network peak load regulating operational cost |
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