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Six years ago, an 80-kW diesel electric set cost $160,000. The cost index for this class of equipment six years ago was 187 and is now 194. The cost-capacity factoris 0.6. (3.4)
(a) The plant engineering staff is considering a120-kW unit of the same general design to power a small isolated plant. Assume we want to add a pre compressor, which (when isolated and estimated separately) currently costs $18,000. Determine the total cost of the 120-kW unit.
(b) Estimate the cost of a 40-kW unit of the same general design. Include the cost of the $18,000 pre compressor.
What are the Miller indices of the direction vector running from the origin of coordinates to the point E?
a gate is 0.5 m wide and 0.6 m tall and is hinged at the bottom. on one side the gate holds back a 0.5 m deep body of
A part of a duct system is a 10-by-22-in rectangular main duct carrying 1600 cfm of air. A tee to a branch duct, 10 X 10 in, draws 500 cfm from the main. The main duct remains the same size downstream from the branch. Determine the velocity of flo..
they are using temperature and that is throwing me off. my books examples use watts for the high and low temp sources
A duralumin tie bar of diameter 40 mm and length 600 mm carries a tensile load of 180 kN. If the bar contains a 30 mm diameter hole along 100 mm of its length, determine the stress in the two sections and the overall change in length.
a fluid at 0.7 bar occupying 0.09 m3 is compressed reversibly to a pressure of 3.5 bar according to the law pvn
Calculate the heat load for this building which consists of 3 floors, each floor has 2 apartments, and located at Jeddah city the total volume is 2100 m3 the total area is 700 m2 suppose there are 25 people, 6 computers, 6 refrigerators, 6 ovens, 6..
an electric wire made of c14500 copper is stretched between two street supports at 20degc so that a stress of 40 mpa is
The Adair wind farm was commissioned in 2008 by MidAmerican Energy. The wind farm, located in Iowa on the border of Adair County and Cass County, is composed of 76 Siemens wind turbines each with a rated capacity of 2.3 MW. Each wind turbine has a ro..
aluminum oxide al2o3 has a surface energy of 1 jm2 estimate the maximum amount of energy jg that is available for
two well-insulated tanks contain air. initially tank a hold 1.0 lb of air at 1440 r and tank b has 2.0 lb of air at
the temperature of a flowing gas is to be measured with a thermocouple junction and wire stretched between two legs of
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