翅片管式冷凝器性能分析及多目标优化
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摘要
针对翅片管式冷凝器构建稳态分布参数模型,利用试验数据验证模型,换热量误差在±3%以内。利用该模型对不同结构参数下的冷凝器性能进行仿真,分析管径、翅片间距、管间距等对管翅式冷凝器性能以及成本的影响。利用多目标遗传算法(MOGA)优化结构参数,其中综合性能优化的方案中换热量增加0.08%,成本降低0.43%,制冷剂侧压降降低3.71%,空气侧压降降低13.66%。
One steady-state distributed parameter mathematical model of the finned-tube condenser is developed,which is validated by the experimental data,and the difference on the heat transfer capacity is within ± 3%. The simulation on the performance of finned-tube condenser under various structural parameters is conducted using this model,and the influence of tube diameter,fin pitch and tube pitch on the performance and the cost is analyzed. The optimized structural parameters are obtained by multi-objective genetic algorithm( MOGA). The overall optimized plan can increase the heating capacity by 0. 08%,and decrease the cost by 0. 43%,as well as decrease the pressure drop on refrigerant side and on air side by 3. 71% and 13. 66% respectively.
One steady-state distributed parameter mathematical model of the finned-tube condenser is developed,which is validated by the experimental data,and the difference on the heat transfer capacity is within ± 3%. The simulation on the performance of finned-tube condenser under various structural parameters is conducted using this model,and the influence of tube diameter,fin pitch and tube pitch on the performance and the cost is analyzed. The optimized structural parameters are obtained by multi-objective genetic algorithm( MOGA). The overall optimized plan can increase the heating capacity by 0. 08%,and decrease the cost by 0. 43%,as well as decrease the pressure drop on refrigerant side and on air side by 3. 71% and 13. 66% respectively.
引文
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[4]过海,倪益华,王进.车用空调冷凝器性能多目标优化方法[J].浙江大学学报(工学版),2015,49(1):142-149.
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[12]李妩,陶文铨,康海军,等.整体式翅片管换热器传热和阻力性能的试验研究[J].机械工程学报,1997,33(1):81-86.
[13]刘建,魏文建,丁国良,等.翅片管式换热器换热与压降特性的实验研究进展——关联式[J].制冷学报,2003,24(4):21-27.
[14]朱卫英,单永明,秦海杰.翅片管式冷凝器空气侧换热性能研究[J].制冷与空调,2015,15(8):42-46.
[15]张春路.制冷空调系统仿真原理与技术[M].北京:化学工业出版社,2013.
[16]HAJAL J E,THOME J R,CAVALLINI A.Condensation in horizontal tubes,part 1:two-phase flow pattern map[J].International Journal of Heat&Mass Transfer,2003,46(18):3349-3363.
[2]DOMANSKI P A,YASHAR D.Optimization of finnedtube condensers using an intelligent system[J].International Journal of Refrigeration,2007,30(3):482-488.
[3]RAO R V,PATEL V.Multi-objective optimization of heat exchangers using a modified teaching-learning-based optimization algorithm[J].Applied Mathematical Modelling,2013,37(3):1147-1162.
[4]过海,倪益华,王进.车用空调冷凝器性能多目标优化方法[J].浙江大学学报(工学版),2015,49(1):142-149.
[5]KOTCIOGLU I,CANSIZ A,KHALAJI M N.Experimental investigation for optimization of design parameters in a rectangular duct with plate-fins heat exchanger by Taguchi method[J].Applied Thermal Engineering,2013,50(1):604-613.
[6]郑贤德,陈光明,丁国良,等.制冷原理与装置[M].北京:机械工业出版社,2008.
[7]王云龙.翅片管式换热器设计软件开发及影响参数研究[D].辽宁:大连理工大学,2013.
[8]SHAH M M.A general correlation for heat transfer during film condensation inside pipes[J].International Journal of Heat and Mass Transfer,1979,22(4):547-556.
[9]VERA-GARCA F,GARCA-CASCALES J R,CORBERN-SALVADOR J M,et al.Assessment of condensation heat transfer correlations in the modelling of fin and tube heat exchangers[J].International Journal of Refrigeration,2007,30(6):1018-1028.
[10]吴业正,朱瑞琪,曹小林.制冷原理及设备[M].3版.西安交通大学出版社,2010.
[11]康海军,李娬,李惠珍,等.平直翅片管换热器传热与阻力特性的实验研究[J].西安交通大学学报,1994,28(1):91-98.
[12]李妩,陶文铨,康海军,等.整体式翅片管换热器传热和阻力性能的试验研究[J].机械工程学报,1997,33(1):81-86.
[13]刘建,魏文建,丁国良,等.翅片管式换热器换热与压降特性的实验研究进展——关联式[J].制冷学报,2003,24(4):21-27.
[14]朱卫英,单永明,秦海杰.翅片管式冷凝器空气侧换热性能研究[J].制冷与空调,2015,15(8):42-46.
[15]张春路.制冷空调系统仿真原理与技术[M].北京:化学工业出版社,2013.
[16]HAJAL J E,THOME J R,CAVALLINI A.Condensation in horizontal tubes,part 1:two-phase flow pattern map[J].International Journal of Heat&Mass Transfer,2003,46(18):3349-3363.