Aramjet engine provides thrust at 12.8 km altitude. the stagnation temperature at the inlet of the nozzle is 2030°c. sketch the variation of thrust force with respect to the flight mach number. (ra=0.32, rc=0.9, rn=0.9, p, = p6=0.2 atm, t = -51°c, no=0.99, qr=43 mj/kg, ac= 0.04 m²).

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature