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)

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

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?