| The flow of air at the isentropic surface is represented by streamlines, computed from the field of pressure and temperature. |
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| Because there is no heat flow, the entropy remains unchanged according to the second law of thermodynamics, so the adiabatic process is also isentropic. |
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| David Scarborough, a senior research engineer, teaches the jet and rocket propulsion class, full of terms like isentropic flow and stagnation states as well as adiabatic efficiency for the diffuser. |
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| Capacities are based on 38°C condensing temperature isentropic compression plus 28°C, evaporator temperature as shown plus 14°C superheat suction gas. |
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| How do I choose between polytropic efficiency and isentropic efficiency? |
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| Either you use the isentropic efficiency, which is the ratio of actual work to theoretical work for an expansion process and the opposite for a compression process. |
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| Other inputs included the degree of superheat and subcooling, isentropic efficiency of the compressor etc. |
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| The first and third legs are nearly isothermal, while the second and fourth legs are nearly isentropic. |
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| The isentropic surface varies in height from place to place over the Earth, the variation being indicated on the isentropic chart by isobars, lines showing the pressure at which the isentropic surface is found. |
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| Because air particles tend to flow along isentropic surfaces rather than at constant levels, the life history of air currents can be conveniently followed from day to day by means of isentropic charts. |
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| S are isentropic compressibility of solvent and solute respectively. |
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