| How do I choose between polytropic efficiency and isentropic efficiency? |
| Capacities are based on 38°C condensing temperature isentropic compression plus 28°C, evaporator temperature as shown plus 14°C superheat suction gas. |
| In the same way the critical point of the isentropic curves comes nearer to that of the isothermals. |
| But in this case all isentropic curves, if sufficiently prolonged, will enter the heterogeneous region. |
| Other inputs included the degree of superheat and subcooling, isentropic efficiency of the compressor etc. |
| The flow of air at the isentropic surface is represented by streamlines, computed from the field of pressure and temperature. |
