摘要
螺旋压缩膨胀制冷机是一种近似布雷顿循环的新型制冷机,与布雷顿制冷循环相比,其压缩过程更接近于等温压缩过程。首先提出了螺旋压缩膨胀制冷机制冷循环,其次采用数学理论计算方法就特定工况下螺旋压缩膨胀制冷机制冷循环过程的热力性能和制冷系数与布雷顿循环进行比较研究。研究发现:一定条件下,得到相同制冷量时,螺旋压缩膨胀制冷机制冷循环比布雷顿循环节约13.4%的压缩功;螺旋压缩膨胀制冷机制冷循环的制冷系数明显大于布雷顿制冷循环的制冷系数;随着制冷量的增大,两种制冷循环的制冷系数均逐渐增大,相同条件下螺旋压缩膨胀制冷循环的制冷系数比布雷顿制冷循环的制冷系数增加更明显。
The spiral compression expansion refrigerator is a new type of refrigerator similar to the Brayton cycle.Compared with the Brayton refrigeration cycle,the compression process is closer to the isothermal compression process.In this paper,the refrigeration cycle of the spiral compression expansion refrigerator is firstly proposed.Secondly,the theoretical calculation method is used to compare the thermal performance and refrigeration coefficient of the refrigeration cycle process of the spiral compression expansion refrigerator with the Brayton cycle under specific working conditions.The study found that:under certain conditions,when the same refrigeration capacity is obtained,the refrigeration cycle of the spiral compression expansion refrigerator saves13.4%of the compression work compared to the Brayton cycle;the refrigeration coefficient of the refrigeration cycle of the spiral compression expansion refrigerator is significantly greater than that of the Brayton refrigeration cycle.With the increase of the cooling capacity,the refrigeration coefficients of the two refrigeration cycles are gradually increased.Under the same conditions,the refrigeration coefficient of the spiral compression expansion refrigeration cycle is more obvious than that of the Brayton refrigeration cycle.
作者
田源
高飞
Tian Yuan;Gao Fei(Sichuan Provincial Architectural Design and Research Institute Co.,Ltd,Chengdu,610000)
出处
《制冷与空调（四川）》
2021年第2期267-271,共5页
Refrigeration and Air Conditioning
关键词
螺旋压缩膨胀制冷机
制冷循环
热力性能研究
spiral compression expansion refrigerator
refrigeration cycle
thermal performance research
