An axial compressor has a mean radius of 0.25 m and the absolute air angle at stator exit is 28.8°. the speed of the rotor is 8000 rev/min. the axial velocity is 70% of the blade speed and is constant throughout the stages. if the relative velocity ratio is 0.85, draw the velocity diagrams at rotor inlet and outlet, find the angles, and determine the power required to deliver 50 kg/s of air.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

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

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?