伞口直径对半导体制冷空调伞性能的影响
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摘要
本文针对压缩式制冷空调伞体积庞大、不易维修等问题,提出一种半导体制冷空调伞,并搭建了用于测量伞口直径为36、38、40 cm的半导体制冷空调伞性能的实验台。基于半导体制冷片的珀尔贴效应,结合空调伞伞头的结构特点,采用下送风空调伞进行实验研究并分析其温度场及流场的变化。结果表明:当半导体空调伞的伞口直径为38 cm时,伞内风速为0.23~0.47m/s,空调区与外界环境的最大温差可达到3.04℃,适于营造舒适的局域环境。
Aiming at the problem of large volume and difficulty in the maintenance of compression-type air-conditioning umbrellas,an airconditioning umbrella with semiconductor refrigeration is introduced. A test bench was built to measure the temperature and flow field in the umbrellas; with different diameters(36 cm,38 cm,and 40 cm). Based on the Peltier effect and the structural characteristics of the air conditioning umbrella,the lower air supply mode was applied within the air-conditioning umbrella with semiconductor refrigeration. Experimental results indicate that the air speed in the umbrella with a diameter of 38 cm is between 0. 23-0. 47 m/s,and the maximum temperature difference between air-conditioned area and environment is 3. 04 ℃,which can thus create a comfortable local environment.
Aiming at the problem of large volume and difficulty in the maintenance of compression-type air-conditioning umbrellas,an airconditioning umbrella with semiconductor refrigeration is introduced. A test bench was built to measure the temperature and flow field in the umbrellas; with different diameters(36 cm,38 cm,and 40 cm). Based on the Peltier effect and the structural characteristics of the air conditioning umbrella,the lower air supply mode was applied within the air-conditioning umbrella with semiconductor refrigeration. Experimental results indicate that the air speed in the umbrella with a diameter of 38 cm is between 0. 23-0. 47 m/s,and the maximum temperature difference between air-conditioned area and environment is 3. 04 ℃,which can thus create a comfortable local environment.
引文
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[2]何丽娟,沈永年.热风幕气幕式空调伞温度场与舒适性研究[J].流体机械,2001,29(6):56-58.(HE Lijuan,SHEN Yongnian.Temperature distribution and comfort investigation on the air-conditioning umbrella with warm aircurtain[J].Fluid Machinery,2001,29(6):56-58.)
[3]王广,何丽娟,韩万宁.冷、热风幕气幕式空调伞的实验研究和对比分析[J].包钢科技,2006,32(1):44-46.(WANG Guang,HE Lijuan,HAN Wanning.Experimental study on and comparative analysis of air-conditioning umbrellas with cool and warm air-curtains[J].Science and Technology of Baotou Steel,2006,32(1):44-46.)
[4]MANKINS J C.New directions for space solar power[J].Acta Astronautica,2009,65(1/2):146-156.
[5]于静,车俊铁,张吉月.太阳能发电技术综述[J].世界科技研究与发展,2008,30(1):56-59.(YU Jing,CHE Juntie,ZHANG Jiyue.The overview of the technique of solar energy generating electricity[J].World Sci-Tech R&D,2008,30(1):56-59.)
[6]郭领波,刘忠宝,李双敬.室外太阳能光伏空调伞:CN201520177242.8[P].2015-08-05.(GUO Lingbo,LIU Zhongbao,LI Shuangjing.Air-conditioner umbrella by solar energy photovoltaic in outdoor:CN201520177242.8[P].2015-08-05.)
[7]贾艳婷,徐昌贵,闫献国,等.半体制冷研究综述[J].制冷,2012,31(1):55-61.(JIA Yanting,XU Changgui,YAN Xianguo,et al.Research review on semiconductor refrigeration[J].Refrigeration,2012,31(1):55-61.)
[8]文虎,丁喜梅,刘长春,等.半导体降温服交盖效应的实验研究[J].制冷学报,2017,38(2):40-44.(WEN Hu,DING Ximei,LIU Changchun,et al.Experimental study on the overlap effect of thermoelectric cooling garment[J].Journal of Refrigeration,2017,38(2):40-44.)
[9]罗仲,张旭,王胜己,等.半导体制冷器除湿实验研究[J].制冷学报,2015,36(5):101-106.(LUO Zhong,ZHANG Xu,WANG Shengji,et al.Experimental research on performance optimization of thermoelectric dehumidifier[J].Journal of Refrigeration,2015,36(5):101-106.)
[10]郑宇薇,刘晓华,涂壤.半导体制冷与固体除湿结合装置的性能研究[J].制冷学报,2013,34(5):59-64.(ZHENG Yuwei,LIU Xiahua,TU Rang.Performance research of a semiconductor cooling device with solid desiccant[J].Journal of Refrigeration,2013,34(5):59-64.)
[11]DREBUSHCHAK V A.The Peltier effect[J].Journal of Thermal Analysis and Calorimetry,2008,91(1):311-315.
[12]郑爱平.驾驶岗位太阳能半导体空调器:CN200620136131.3[P].2007-10-31.(ZHENG Aiping.Semiconductor air-conditioner driven by solar energy in cab:CN200620136131.3[P].2007-10-31.)
[13]何丽娟,梁晶晶,李洁琼,等.新型半导体制冷空调伞温度场流场的实验研究[J].可再生能源,2014,32(4):481-484.(HE Lijuan,LIANG Jingjing,LI Jieqiong,et al.Experimental study on temperature and flow fields of a new semiconductor refrigeration air-conditioning umbrella[J].Renewable Energy Resources,2014,32(4):481-484.)
[14]贺培春.基于舒适度的室内空气调节系统研究[D].重庆:重庆大学,2010.(HE Peichun.The study about indoor air conditioning based on PMW[D].Chongqing:Chongqing University,2010.)