精品文献
125直角R型条扣
物业消防12大类125条要点
物业消防12大类125条要点
空调制冷工质R143a/R227ea、R125/R227ea的理论与实验研究
The paper studies the cycle performance of the mixture alternatives of R22. The theoretical study indicates that R143a/R227ea and R125/R227ea improve the volumetric refrigeration capacity comparing to R143a/R227ea, R125/R227ea and R22/R142b. Because of these excellent fractional distillation, R143a/R227ea and R125/R227ea can be used in change concentration volume regulation system. Experimental data are compared to theoretical results. Good agreement is found for the cases studied.
