An ideal diesel cycle has a maximum cycle temperature of 2300°f and a cutoff ratio of 1.4. the state of the air at the beginning of the compression is p1=14.4 psia and t1=50°f. this cycle is executed in a four- stroke, eight-cylinder engine with a cylinder bore of 4 in and a piston stroke of 4 in. the minimum volume enclosed in the cylinder is 4.5 percent of the maximum cylinder volume. determine the power produced by this engine when it is operated at 1800 rpm. use constant specific heats at room temperature. (unit is hp)

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.

Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.