For a fixed compressor inlet velocity and flow area, explain the effect of increasing compressor inlet temperature (i.e., summertime operation versus wintertime operation) on the inlet mass flow rate and the net power output with all other parameters of the problem being the same.

Please match the formulate (energy and/or mass balance) to the corresponding steady flow devices:                                                                        A not well insulated nozzles by neglecting the potential energy change.                                                                        An adiabatic turbine by neglecting the kinetic and potential energy change.                                                                        A not well insulated compressor by neglecting the kinetic and potential energy change.                                                                        An adiabatic mixing chamber with two inlets and one exit by neglecting the kinetic and potential energy change.                                                                        An adiabatic throttling valve by neglecting the kinetic and potential energy change. A.   B.   C.   D.   E.

Considering now the real case, where the turbine and feed pump are not isentropic, and the feed pump electric motor and the electric generator are not 100% efficient, Determine for unit mass flow rate of refrigerant circulated, the quantities (I) to (VI) as listed above, briefly contrasting the values calculated here and those calculated,

What are the main reasons for running jet engines at high temperatures? Select one or more: a. Increased fuel burn b. Greater thermal creep c. Increased efficiency d. Higher thrust e. Decreased noise