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Jacky Brown, a maintenance manager of a local plant in reviewing the maintenance records of production equipment, has compiled the following maintenance cost data: 5 years ago $500; 4 years ago $ 600; 3 years ago $700; 2 years ago $800; and Last year $900. After consulting with an equipment specialist, she has compiled the maintenance cost data for the current year and the next four years. She figures that the maintenance cost this year will be $1,150 and will increase at the rate of $250 each year. Assuming an interest rate of 10 %, compute the equivalent uniform annual cost.
water at 15 degrees celcius flows through a nozzle that contracts from a diameter of 20cm to 2cm. the pressure at
The wash still in a whisky distillery uses mechanical vapour re-compression as shown in the simplified diagram of the Figure shown below. The vapour from the still is at 80° C. Take a minimum temperature difference between the vapour leaving the stil..
consider the flow of air over a vertical flat plate at a low velocity u1 in ambient pressure p1. the plate surface
you are interested in determination of a steady state temperature profiles in a cylinder conducting the electrical
a small household refrigerator is used to cool 20 liters of water initially at 22c. the cop of the refrigerator is 2.40
A small boat hangs from two davits, one of which is shown in the figure. The tension in line ABAD is 82 lb, determine the moment about C of the resultant force exerted on the Davit.
water behind a dam enters an intake pipe at 24psia 5 fts flow through a turbine and exits 200ft below at 19psia 45 fts
at room temperature 25 c what pressure in both kpa and psi is required to liquefy propane c3h8? b determine values of
a piston-cylinder device contains 0.15kg of air initially at 2 mpa and 350 degrees celsius. the air is first expanded
the annual cost of operating a heat pump at year-end prices is r with units of yr. the costs are expected to inflate at
a pipe is sealed at the top and is submerged in water. it is then drawn upward from the water. how tall could the
an insulated piston-cylinder device contains 5l of saturated liquid water at a constant pressure of 175kpa. water is
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