An air standard diesel cycle has a compression ratio of 18. the heat transferred to the working fluid per cycle is 2000 kj/kg. at the beginning of the compression process pressure is at 100 kpa and temperature is at 25°c. determine (a) the pressure at each point in the cycle (b) the cut-off ratio, (c) the thermal efficiency, (d) the net work per

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

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

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false