这款冰箱适用于简单的蒸汽压缩循环。在封闭的系统中连续循环，蒸发和冷凝制冷剂的固定供应，实现机械制冷。蒸发在低温和低压下发生，同时冷凝在高温和压力下发生。Thus, it is possible to transfer heat from an area of low temperature (i. e. refrigerator cabinet) to an area of high temperature (i.e. kitchen) Beginning the cycle at the evaporator inlet the low pressure liquid expands, absorbs heat, and evaporates, changing to a low pressure gas at the evaporator outlet. The Compressor pumps this gas from the evaporator through the accumulator increases its pressure, and discharges the high pressure gas to the condenser accumulator is designed to protect the compressor by preventing slugs of liquid refrigerant from passing directly into the compressor. An accumulator should be included on all systems subjected to varying load conditions or frequent compressor cycling. In the condenser, heat is removed from the gas which then condenses and becomes a high pressure liquid. In some systems this high-pressure liquid drains from the condenser into the liquid storage or receiver tank. On other systems, both the receiver and the liquid line valve are omitted. A heat exchanger between and the liquid line and the suction line is also an option item which may or may not be includes in a given system design. Between the condenser and the evaporator an expansion device is located. Immediately preceding this device is a liquid line strainer/ drier which prevent plugging of the valve or tube by retaining scale, dirt and moisture. The flow of refrigerant into the evaporator is controlled by the pressure differential across the expansion device or, in the case of a thermal expansion valve, by the degree of superheat of the suction gas. Thus, the thermal expansion valve shown requires a sensor bulb located at the evaporator outlet. In any case, the flow of refrigerant into the evaporator load increase as the evaporator load increases. As the high pressure liquid refrigerant enters the evaporator it is subjected to a much lower pressure due to the suction of the compressor and the pressure drop across the expansion device. Thus the refrigerant tends to expand and evaporate. In order to evaporate the liquid must absorb heat from the air passing over the evaporator.
最终达到所需的空气温度，恒温器或冷控制将使电路打破压缩机电机并停止压缩机。随着空气的温度通过蒸发器上升，恒温器或冷控制器会使电路输掉。压缩机电机并开始，循环继续
一套实验
研究家用冰箱的构造及工作原理
评估冰箱在环境温度下的冷却能力。
评估制冷系统性能的实际共同效率。
评估制冷系统性能的理论共同效率。
在P-H＆T-S图表上绘制周期。
容量：最小值165个窝。
冰箱：松下/ Videocon / whirpool / gogrej / lg或任何等同的制作。
电源：220-240 V;50Hz;1相，AC
冰箱：冰托盘提供了部件
提供的货架
冰箱门架。
冰箱：提供的存储架
提供搁板可调/完全折叠
提供了架子蛋
提供货架瓶
保鲜储藏格提供
提供了玻璃架
容量142 LTR。
加热器装载：提供。
能量表压缩机：提供
能量仪表加热器：提供
压力表：2号提供
1用于吸入气体压力
1 No用于排放气体压力
温度：带有选择器的数字温度指示器在突出点显示制冷剂温度。
制冷剂：R-134 a
非CFC和环境友好。

Ltekonline是家用电冰箱教练机的制造商，用于在工程学院，工程学校和制冷和空气刺激师大学工程教学实验室