Refrigerating systems with vapor-liquid heat exchangers are analyzed by this theoretical method with R12,R22 or their substitutes as refrigerant,which provides a guideline to correctly use suction line heat exchangers in engineering.

• 并计算出了R12、R22等常用制冷剂及其替代制冷剂在标准工况下吸气过热度对理论制冷循环性能的影响,为工程中正确使用回热器提供指导。