The velocity of steam leaving the nozzle of an impulse turbine is 900 m/s and the nozzle angle is 20°. the blade velocity is 300 m/s and the blade friction factor is 0.7. calculate for a mass flow rate of 1 kg/s and symmetric blading. a)-the blade inlet angle, b) the driving force on the wheel, c)-the axial thrust, d)-the diagram power, e)-the diagram efficiency.

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.