内融式盘管蓄冰系统实验研究
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摘要
随着我国经济的发展,电力需求问题日趋严重。夏季空调设备的广泛使用,使得许多城市30%高峰负荷由空调负荷构成,这加剧了电网负荷压力。冰蓄冷空调技术作为平衡电网负荷的重要技术,可以将空调高峰负荷转移到用电低谷时段,既可以达到为电网削峰填谷的目的,又可以降低空调系统的运行费用,因而在近些年来得到迅速发展。
本文主要针对内融式冰盘管蓄冰系统的蓄冰、融冰性能进行了部分研究工作。首先采用铝塑管管材自行设计、制作了圆筒型蓄冰桶,并利用实验室现有设备组合搭建了冰蓄冷空调实验系统:制冷机组包括压缩机、冷凝器、膨胀阀、蒸发器等,工质为R22,载冷剂为乙二醇水溶液,融冰实验时采用风机盘管供冷。
其次根据实验测得数据,对铝塑管材质蓄冰盘管蓄冰、融冰特性进行了分析,研究载冷剂流量对蓄冰、融冰的影响,并对实验中遇到的一些问题作出合理解释。
最后根据本实验具体设计参数和测得数据,借助MATLAB/SIMULINK搭建了蓄冰桶的仿真实验台,与实验实测数据对比表明仿真实验台可以满足研究需要。因而借助仿真实验台分析了不同管材、不同管径时蓄冰盘管的性能,提出了本文对蓄冰盘管选材的建议。
Along with the development of our country’s economy, the property of the power demand in city power grid is very serious in today’s China. It is estimated that cooling of buildings contributes about 30% to the China peak electrical power consumption in the summer. Ice storage technology is a method of shifting cooling loads from on-peak periods when electrical energy and demand are high, to off-peak periods when the cost of electrical energy is significantly lower and demand charges are low or often not applied at all. Ice storage systems are developing rapidly in recent years.
The main purpose of this paper is to study the performance of ice generation and ice melt of internal melt ice-on-coil thermal storage system. Firstly, we designed a cylinder ice-on-coil tank with aluminum plastic tube. Then we produced an ice storage air conditioning system by ourselves, which assisted with compressor, evaporator, condenser, throttle, valves for controlling charging and discharging, fan coil unit (FCU) and so on. The working liquid of system is R22, and the ice-making medium is ethylene glycol.
Secondly according to the experiment data, the paper discussed the performance of ice generation and ice melt for the cylinder ice-on-coil tank.
At last, according to the experiment data and system parameter, the simulation program of the ice-on-coil tank was established with MATLAB/SIMULINK. On the basis of the simulation results, the performance of coil made by different materials and diameter were discussed.
本文主要针对内融式冰盘管蓄冰系统的蓄冰、融冰性能进行了部分研究工作。首先采用铝塑管管材自行设计、制作了圆筒型蓄冰桶,并利用实验室现有设备组合搭建了冰蓄冷空调实验系统:制冷机组包括压缩机、冷凝器、膨胀阀、蒸发器等,工质为R22,载冷剂为乙二醇水溶液,融冰实验时采用风机盘管供冷。
其次根据实验测得数据,对铝塑管材质蓄冰盘管蓄冰、融冰特性进行了分析,研究载冷剂流量对蓄冰、融冰的影响,并对实验中遇到的一些问题作出合理解释。
最后根据本实验具体设计参数和测得数据,借助MATLAB/SIMULINK搭建了蓄冰桶的仿真实验台,与实验实测数据对比表明仿真实验台可以满足研究需要。因而借助仿真实验台分析了不同管材、不同管径时蓄冰盘管的性能,提出了本文对蓄冰盘管选材的建议。
Along with the development of our country’s economy, the property of the power demand in city power grid is very serious in today’s China. It is estimated that cooling of buildings contributes about 30% to the China peak electrical power consumption in the summer. Ice storage technology is a method of shifting cooling loads from on-peak periods when electrical energy and demand are high, to off-peak periods when the cost of electrical energy is significantly lower and demand charges are low or often not applied at all. Ice storage systems are developing rapidly in recent years.
The main purpose of this paper is to study the performance of ice generation and ice melt of internal melt ice-on-coil thermal storage system. Firstly, we designed a cylinder ice-on-coil tank with aluminum plastic tube. Then we produced an ice storage air conditioning system by ourselves, which assisted with compressor, evaporator, condenser, throttle, valves for controlling charging and discharging, fan coil unit (FCU) and so on. The working liquid of system is R22, and the ice-making medium is ethylene glycol.
Secondly according to the experiment data, the paper discussed the performance of ice generation and ice melt for the cylinder ice-on-coil tank.
At last, according to the experiment data and system parameter, the simulation program of the ice-on-coil tank was established with MATLAB/SIMULINK. On the basis of the simulation results, the performance of coil made by different materials and diameter were discussed.
引文
[1]章学来,空调蓄冷蓄热技术,大连:大连海事大学出版社,2006.3～4
[2] Jonathan D. West, Performance of a volumetric method for measuring state of charge for ice storage system. ASHRAE Transaqctions, 1999, 105(2)
[3]R. K. Strand, Development do direct and indirect ice-storage models for energy analysis caculations.ASHEAE Transactions, 1994, 100(1):1230～1244
[4]Kirk H.Drees, Development and evaluation of a rule-based control strategy for ice storage systems, ASHRAE Transactions, 1997, 103(1):344
[5]D.H.Spethmann. Optimal control for cool storage. ASHRAE Trasactions,1989, 95(1):1189～1193
[6]Jose H. M. Neto. Parametric analysis of an internal-melt ice-on-coil tank.ASHRAE Transactions,1997,103(2):322～333
[7]张永铨,国内外冰蓄冷技术的发展与应用,中国制冷学会新世纪中国蓄冷空调技术研讨会论文集 ,北京:中国制冷学会,1999:1～5
[8]叶水泉,陈国邦,蓄冷技术及其发展,低温工程,2001,119(1):30～39
[9]赵庆珠,骆维军,张雁,冰蓄冷系统现场测试情况与展望,电力需求侧管理,2000,4(1):25～27
[10]严德隆,张维君,空调蓄冷应用技术,北京:中国建筑工业出版社,1997.127～128
[11]梁江,水—水热泵系统的优化与智能控制:[硕士学位论文],天津;天津大学,2002
[12] 杨世铭,陶文铨,传热学,北京:高等教育出版社,1998.425
[13]《制冷工程设计手册》编写组,制冷工程设计手册,北京:中国建筑工业出版社,1985.161～162
[14]严德隆,张维君,空调蓄冷应用技术,北京:中国建筑工业出版社,1997.213
[15]章学来 ,空调蓄冷蓄热技术,大连:大连海事大学出版社,2006.58～59
[16]章学来 ,空调蓄冷蓄热技术,大连:大连海事大学出版社,2006.8～11
[17]方贵银,直接蓄冰系统蓄冷过程动态模型研究,热能动力工程,1999,14(2)
[18]张葛祥,李娜,MATLAB 仿真技术与应用,北京:清华大学出版社,2003
[19]李人厚,张平安等译校,精通 MATLAB-综合辅导与指南,西安:西安交通大学出版社,1998
[20]陈桂明,张明照,戚红雨等,应用 MATLAB 建模与仿真,北京:科学出版社,2001
[21]薛定宇,陈阳泉,基于 MATLAB/Simulink 的系统仿真技术与应用,北京:清华大学出版社,2002
[22]R. K. Strand, Development do direct and indirect ice-storage models for energy analysis caculations.ASHEAE Transactions, 1994, 100(1)
[23]杨世铭,陶文铨,传热学,北京:高等教育出版社,1998.162～164
[24]方贵银,内融式冰盘管融冰放冷动态模型研究,热能动力工程,1999,14(3)
[2] Jonathan D. West, Performance of a volumetric method for measuring state of charge for ice storage system. ASHRAE Transaqctions, 1999, 105(2)
[3]R. K. Strand, Development do direct and indirect ice-storage models for energy analysis caculations.ASHEAE Transactions, 1994, 100(1):1230～1244
[4]Kirk H.Drees, Development and evaluation of a rule-based control strategy for ice storage systems, ASHRAE Transactions, 1997, 103(1):344
[5]D.H.Spethmann. Optimal control for cool storage. ASHRAE Trasactions,1989, 95(1):1189～1193
[6]Jose H. M. Neto. Parametric analysis of an internal-melt ice-on-coil tank.ASHRAE Transactions,1997,103(2):322～333
[7]张永铨,国内外冰蓄冷技术的发展与应用,中国制冷学会新世纪中国蓄冷空调技术研讨会论文集 ,北京:中国制冷学会,1999:1～5
[8]叶水泉,陈国邦,蓄冷技术及其发展,低温工程,2001,119(1):30～39
[9]赵庆珠,骆维军,张雁,冰蓄冷系统现场测试情况与展望,电力需求侧管理,2000,4(1):25～27
[10]严德隆,张维君,空调蓄冷应用技术,北京:中国建筑工业出版社,1997.127～128
[11]梁江,水—水热泵系统的优化与智能控制:[硕士学位论文],天津;天津大学,2002
[12] 杨世铭,陶文铨,传热学,北京:高等教育出版社,1998.425
[13]《制冷工程设计手册》编写组,制冷工程设计手册,北京:中国建筑工业出版社,1985.161～162
[14]严德隆,张维君,空调蓄冷应用技术,北京:中国建筑工业出版社,1997.213
[15]章学来 ,空调蓄冷蓄热技术,大连:大连海事大学出版社,2006.58～59
[16]章学来 ,空调蓄冷蓄热技术,大连:大连海事大学出版社,2006.8～11
[17]方贵银,直接蓄冰系统蓄冷过程动态模型研究,热能动力工程,1999,14(2)
[18]张葛祥,李娜,MATLAB 仿真技术与应用,北京:清华大学出版社,2003
[19]李人厚,张平安等译校,精通 MATLAB-综合辅导与指南,西安:西安交通大学出版社,1998
[20]陈桂明,张明照,戚红雨等,应用 MATLAB 建模与仿真,北京:科学出版社,2001
[21]薛定宇,陈阳泉,基于 MATLAB/Simulink 的系统仿真技术与应用,北京:清华大学出版社,2002
[22]R. K. Strand, Development do direct and indirect ice-storage models for energy analysis caculations.ASHEAE Transactions, 1994, 100(1)
[23]杨世铭,陶文铨,传热学,北京:高等教育出版社,1998.162～164
[24]方贵银,内融式冰盘管融冰放冷动态模型研究,热能动力工程,1999,14(3)