Calc refrigeration 180kPa 900kPa eff Excel

[@maurartsy2916]

how did you get the value for H2a

[@majharulislam5950]

Hi, if we do cascade operation of 2 nos, 2 TR split AC compressor, what would be the diagram and calculation. If u could do explanation with an example, would be helpful. Purpose of cascade, to operate Slit AC's low pressure compressor for Refrigeration purpose at get high pressure difference at suction& discharge, without motor failure by over current.

[@jordanpardo]

Hi Randall,Good day!I have tried the into my excel file however it doesn't work. Would you be able to assist on how to fix it?Thanks!Jordan