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A slitter for sheet sandpaper owned by Abbotsford Abrasives (AA) requires regular maintenance costing S7500 per year. Every five years it is overhauled at a cost of $25 000. The original capital cost was $200 000, with an additional $25 000 in non-capital expenses that occurred at the time of installation. The machine has an expected life of 20 years and a $15 000 salvage value. The machine will not be overhauled at the end of its life. AA pays taxes at a rate of 45% and expects an after-tax rate of return of 10% on investments. Given that the slitter is in the MACR$ 7-year property class, what is the after-tax annual cost of the slitter?
an ideal vapor-compression refrigeration cycle opperates at steady state with refrigeratn 134a as the working fluid.
A gas initially at 14 bar and 60°C expands to a final pressure of 2.8 bar in an isothermal, internally reversible process. Determine the heat transfer and the work, each in kJ per kg of gas, if the gas is (a) Refrigerant 134a, (b) air as an ideal ..
The deformations of the clay layers will be analyzed by performing oedometer tests on samples from each clay layer. What should be the initial load on each of the two samples, and what should be the additional load?
a rigid tank has 0.1 kg saturated vapor r-410a at 0 celsius that is cooled to -20 celius by a -20 celcius heat sink.
the man pulls the boy up to the tree limb by walking backward. if he starts from rest when 0 and moves backward with a
In a polytropic process, a fluid is compressed to 2.75 times its initial pressure, whereas its temperature becomes1.65 times. What is the fluids index of expansion, n? 1.2kg of Air at a pressure of 2.15MPa and a temperature of 585K, undergoes a rever..
One kg of air in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 0.5 MPa, T1 = 227oC. Constant-temperature expansion until the volume is twice the initial volume.
Calculations of the entire 360 degree stroke of your engine including, joint forces, shaking forces, and all calculations you used to balance your design and associated justifications.
Consider the heat exchanger of Problem 11.14. After several years of operation, it is observed that the outlet temperature of the cold water reaches only 95°C rather than the desired 120°C for the same flow rates and inlet temperatures of the flui..
If the beam is rotated 90° to bend about its y axis (see figure part b), and uniform load q=250 lb/ft is applied, find the maximum stresses σs and σw in the steel and wood, respectively. Include the weight of the beam. (Assume weight densities of ..
a a rod of steel 0.5 m long is heated from 20 c to 80 c while its ends are maintained rigid. determine the type and
steam enters a turbine operating at steady state with a mass flow 10 kgmin a specific enthalpy 3100 kjkg and a velocity
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