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AN ESTIMATION OF THERMODYNAMIC PROPERTIES OF HYDROCARBON REFRIGERANTS

机译:碳制冷剂热力学性质的估算

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摘要

Natural refrigerants are naturally occurring substances, such as hydrocarbons, CO_2, ammonia, water, and air. These substances can be used as refrigerant in refrigerators and air conditioners. Natural refrigerants don 7 harm the ozone layer and have no or negligible climate impact. The aim of this study is to determine thermodynamic properties as enthalpy, entropy and specific volume of hydrocarbon refrigerants using neural network (NN) method. Hydrocarbon (HC) refrigerants used in the study are butane, ethane, methane and propane. The results obtained from NN have been compared to actual data from the literature. The study shows that the NN methodology is successfully applicable to determine enthalpy, entropy, and specific volume values for any temperature and pressure of refrigerants. Therefore, computation time reduces and simulation of refrigeration systems is fairly facilitated.
机译:天然制冷剂是天然存在的物质,例如碳氢化合物,CO_2,氨,水和空气。这些物质可用作冰箱和空调中的制冷剂。天然制冷剂不会损害臭氧层,并且不会或对气候的影响微不足道。这项研究的目的是使用神经网络(NN)方法确定碳氢制冷剂的焓,熵和比容的热力学性质。研究中使用的碳氢化合物(HC)制冷剂为丁烷,乙烷,甲烷和丙烷。从神经网络获得的结果已与文献中的实际数据进行了比较。研究表明,NN方法可成功地用于确定制冷剂的任何温度和压力的焓,熵和比体积值。因此,减少了计算时间并且相当方便了制冷系统的仿真。

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