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浙江大学学报(工学版)
能源工程     
复合制冷循环间接空冷系统环境气温敏感性分析
赵波1, 杨善让2, 胡亚才1
1. 浙江大学 热工与动力系统研究所,浙江 杭州 310027; 2.东北电力大学 节能与测控技术吉林省工程实验室,吉林 吉林 132012
Ambient air temperature sensitivity analysis for indirect air cooled system with compound refrigeration cycle
ZHAO Bo1,YANG Shan-rang2, HU Ya-cai1
1. Institute of Thermal Science and Power System, Zhejiang University, Hangzhou 310027, China; 2. Jilin Province Engineering Laboratory for Energy Conservation and Measure and Control Technology, Northeast Dianli University, Jilin 132012, China
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摘要:
为了定量评估环境气温高频、快速变化对复合制冷循环间接空冷(复间冷)系统热经济性的影响,以某亚临界600 MW的直冷机组性能参数和当地气象条件为基准,建立亚临界600 MW模拟复间冷机组,基于复间冷与直冷机组热经济性对比分析,构建环境高温时段模拟复间冷机组的运行背压与其热经济性转捩温度之间的定量关联;以复间冷机组年累计输出电量为目标量和汽轮机的设计背压为优化变量,对复间冷机组的设计背压进行优化选择;在环境气温分布特性的基础上提出厂址敏感性系数的定义及计算方法,计算结果表明:厂址敏感性系数越小,复间冷系统年累计输出电量越大.该结果可为复间冷系统设计、优化运行提供可靠的理论依据..
Abstract:

In order to quantitatively evaluate the influence of high frequency and rapid changes of ambient air temperature on the thermal economy of indirect air cooling system with compound refrigeration cycle (CRCIAC) system, the performance parameter of a subcritical 600 MW direct air cooling (DAC) plant and the local meteorological conditions are taken as the benchmark, and the subcritical 600 MW simulation CRCIAC plant was established. Based on the contrastive analysis of CRCIAC and DAC plant, the quantitative association between operation exhaust pressure of CRCIAC plant and thermal economy transition temperature at high temperature period (HTP) was analyzed. The annual cumulative output power (ACOP) of CRCIAC plant as the target variable and the design exhaust pressure as the optimization variable, the design exhaust pressure of CRCIAC plant system was optimally designed. A definition and calculation method of site sensitivity coefficient (SSC) was presented based on the ambient air temperature distribution characteristics. The calculation results show that the smaller the SSC, the bigger the ACOP. The analysis results provide a theoretical evidence for design and optimal operation of CRCIAC system.

出版日期: 2014-12-01
:  TK 28  
基金资助:

中国华能集团科学技术资助项目(HNKJ08-H32);北方联合电力公司科学技术资助项目(2010-BFKJ-SC-06)

通讯作者: 杨善让,男,教授     E-mail: yangshanrang@126.com
作者简介: 赵波(1985—),男,博士生,从事节能理论与技术研究.E-mail: rerbertzhao@163.com
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赵波1, 杨善让2, 胡亚才1. 复合制冷循环间接空冷系统环境气温敏感性分析[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.12.012.

ZHAO Bo1,YANG Shan-rang2, HU Ya-cai1. Ambient air temperature sensitivity analysis for indirect air cooled system with compound refrigeration cycle. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.12.012.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.12.012        http://www.zjujournals.com/eng/CN/Y2014/V48/I12/2188

[1] LIU Li-hua,DU Xiao-ze,XI Xin-ming,et al.Experimental analysis of parameter influences on the performances of direct air cooled power generating unit[J].Energy,2013,56: 117-123.
[2] 杨建国,张海珍.直接空冷凝汽器单排翅片管换热性能试验研究[J].中国电机工程学报,2012,32(35):74-79.
YANG Jian-guo,ZHANG Hai-zhen.Experimental research on heat transfer performance for finned-tubes of direct air-cooled condensers[J].Proceedings of the CSEE,2012,32(35): 74-79.
[3] 赵洪滨,曹岭.直接空冷凝汽器理论最佳背压的研究[J].工程热物理学报,2009,30(11):1834-1836.
ZHAO Hong-bin,CAO Ling.Theoretical study on optimal back-pressure of a direct air-cooled condenser [J].Journal of Engineering Thermophysics,2009,30(11): 1834-1836.
[4] 严俊杰,张春雨,李秀云,等.直接空冷系统变工况特性的理论研究[J].热能动力工程,2000,15(6):601-603,617.
YAN Jun-jie,ZHANG Chun-yu,LI Xiu-yun,et al.Theoretical research on the off-design performance of a direct air-cooled system [J].Journal of Engineering for Thermal Energy & Power,2000,15(6): 601-603,617.
[5] 严宏强,程钧培,都兴有,等.中国电气工程大典(第四卷)火力发电工程(下)[M].北京:中国电力出版社,2009: 1195,1198.
[6] DU Xiao-ze,Hu He-min,Shen Yin-qi,et al.Reduced order analysis of flow and heat transfer for air-cooled condenser of power generating unit[J].Applied Thermal Engineering, 2013,51: 383-392.
[7] 杨善让,陈立军,雷扬,等.压缩制冷复合循环间冷机组热经济性分析与虚拟计算[J].中国电机工程学报,2010,30(32): 13-19.
YANG Shan-rang,CHEN Li-JUN,LEI Yang, et al.Analysis and fictitious computation on thermal economic performance of compressed refrigeration cycle for air cooling steam turbine unit [J].Proceedings of the CSEE, 2010,30(32): 13-19.
[8] ALLEMANN R T,DEBELLIS D E,WERRY E V,et al.Wet-dry cooling demonstration: test results [R]. Richland, USA: Pacific Northwest Laboratories, 1986.
[9] MILLIARAS E S.Power plants with air-cooled condensing systems [M].Cambridge: The MIT Press, 1974.
[10] MCHALE C E,JABLONKA G E,BARTA J A,et al.A new developments in dry cooling of power plants [J].Combustion,1980,51(11): 28-36.
[11] BOUCHARD C T,ROTHROCK E W,MAHER J B, et al. Power producing dry-type cooling system: US 4,212,168 [P]. 1980-0715.
[12] HUSAIN M,LAI B,MAHER J B,et al.Power producing dry cooling apparatus and method: US,4,291,538 [P]. 19810929.
[13] YANG S R,XU Z M,WANG G,et al.A new air cooling system by steam power cycle coupled with the positive and negative sequence refrigerating cycle [J].The Proceeding of the China association for Science and Technology,2008,4(2): 408-413.
[14] 杨善让,雷扬,赵波,等.复合制冷循环间冷系统制冷剂/工质的选择论证[J].中国电机工程学报,2012,32(2): 73-79.
YANG Shan-rang,LEI Yang,ZHAO Bo,et al.A selection demonstration of refrigerant/medium for compound refrigerating cycle of indirect air cooling system [J].Proceedings of the CSEE,2012,32(2): 73-79.
[15] 曾丹苓,敖越,张新铭,等.工程热力学[M].3版.北京:高等教育出版社,2004: 327-328.
[16] 樊泉桂.提高超临界和超超临界机组发电效率的关键技术[J].电力设备,2006,7(7): 30-34.
FAN Quan-gui.The key techniques to improve the generating efficiency of supercritical unit and ultra-supercritical unit [J].Electrical Equipment,2006,7(7): 30-34.
[17]  严宏强,程钧培,都兴有,等.中国电气工程大典(第4卷)·火力发电工程(上)[M].北京:中国电力出版社,2009: 71-72.
[18]  陈立军,米利俊,徐超,等.新型复合动力/制冷循环空冷系统电站的经济性分析[J].中国电机工程学报,2010,30(Sup): 54-58. CHEN Li-jun,MI Li-jun,XU Chao,et al.Economic analysis on the combined power/refrigerating cycle air cooling system in power plant
[J].Proceedings of the CSEE,2010,30(Sup): 54-58.
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