In an ideal otto cycle, air is compressed from 25 c and 2 l to 0.16 l, and its temperature increases by an additional 800 c during the heat addition process. determine the thermal efficiency of the cycle. account for the constant specific heats at room temperature. assume cp = 1.005 kj/kg. k and k=1.4.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

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

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.