分体式冰箱节能性研究

发布时间：2018-08-20 18:55

【摘要】：我国是目前世界上冰箱生产和消费最大的国家，各大冰箱生产企业在中国市场的竞争逐渐进入白热化阶段，节能和环保是目前市场竞争中的重要部分。冰箱的节能性不光关系到冰箱企业的生存和发展，也是到我国可持续发展战略能否顺利进行的重要保证。目前冰箱节能的技术和方法很多，有些已经取得了很好的市场效果，而有些仍在试验阶段。冰箱的节能技术和手段也在随着冰箱的发展不断的进行革新，为冰箱节能带来的更多的潜力。根据家用分体式空调的结构形式本文提出了“分体式冰箱”的设想，将冰箱一拆为二，把冷凝器和压缩机放到室外与大气环境进行直接热交换，冰箱的其他主要部分如仍然放在室内，通过相应的线路将两部分结合在一起。“分体式冰箱”的冷凝器的工作环境与置于室内时发生的很大变化，室外环境条件的变化对冷凝器的散热效果产生了很大的影响，同时也对冰箱的能耗产生了影响。为了进一步探究“分体式冰箱”的节能性，对两台直冷式冷藏冰箱进行了对比实验，其中一台改装成为“分体式冰箱”，另一台未做处理，将两台冰箱放在相同的室内环境中进行实验测量。以青岛地区为例，，分别在春、夏、秋、冬四个季节对两台冰箱的箱体内空气温度、冰箱开机时间、冰箱耗电量以及冰箱冷凝器表面平均温度等数据进行比较分析，得到“分体式冰箱”在夏季的节能效果最好，在春季和秋季节能效果不明显，在冬季不节能。除此之外，综合两台冰箱在12个月以及整年的耗电量情况，得出“分体式冰箱”在全年运行是节能的。除了实验探究之外，本文还进行了理论计算分析，得到冰箱冷凝器在室外环境下的冷凝温度与环境温度、制冷量以及COP变化率之间的关系。又通过冰箱耗电量的分析计算，得到冷藏室空气温度随冰箱运行时间变化关系和冰箱连续运行的耗电量计算结果。
[Abstract]:China is the largest country in refrigerator production and consumption in the world at present. The competition of refrigerator manufacturing enterprises in Chinese market has gradually entered the stage of white-hot. Energy saving and environmental protection are the important part of the current market competition. The energy saving of refrigerators is not only related to the survival and development of refrigerator enterprises, but also an important guarantee to the sustainable development strategy of our country. At present, there are many technologies and methods for refrigerator energy conservation, some of which have achieved good market results, while some are still in the experimental stage. The energy saving technology and means of refrigerators are innovating with the development of refrigerators, which brings more potential for energy saving of refrigerators. According to the structural form of domestic split air conditioning, this paper puts forward the idea of "separate refrigerator". The refrigerator is divided into two parts, and the condenser and compressor are placed outdoors for direct heat exchange with the atmospheric environment. The other main parts of the refrigerator, such as remain indoors, are wired together. The working environment of the condenser in the "split refrigerator" has great changes when it is placed indoors. The change of the outdoor environment conditions has a great influence on the cooling effect of the condenser and also on the energy consumption of the refrigerator. In order to further explore the energy efficiency of the "split refrigerator", a comparative experiment was carried out on two direct-cooled refrigerators, one of which was converted into a "split refrigerator" and the other was not treated. The two refrigerators were tested in the same indoor environment. Taking Qingdao area as an example, the data of air temperature inside the refrigerator, the time of starting the refrigerator, the power consumption of the refrigerator and the average surface temperature of the condenser of the refrigerator were compared and analyzed in spring, summer, autumn and winter, respectively. The results show that the energy saving effect of "split refrigerator" is the best in summer, not obvious in spring and autumn, and not energy saving in winter. In addition, combined with the two refrigerators in 12 months and the entire year of electricity consumption, it is concluded that the "split refrigerator" operation throughout the year is energy-saving. In addition to the experimental investigation, the relationship between the condensing temperature of the refrigerator condenser and the ambient temperature, the refrigerating capacity and the change rate of COP in the outdoor environment is obtained by theoretical calculation and analysis. Through the analysis and calculation of refrigerator power consumption, the relationship between the air temperature in the refrigerator and the operation time of the refrigerator and the calculation results of the power consumption in the continuous operation of the refrigerator are obtained.
【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TM925.21;TU83

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