A 0.0508 m thick aluminum plate is initially uniform in temperature at 27°C. Suddenly the plate is immersed in a convection environment T = 100°C, h=9,330 W/m2°C. Evaluate thermal properties of the plate at 27°C. Consider the following:

i) Determine the time (s) for the mid-plane temperature to reach 70°C.

ii) For the same time as in part (i), calculate the surface temperature (°C).

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

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

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.