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Water flows out of a large reservoir through pipe A at a rate of 15 kg/s. What would be the power output of the turbine if it has an efficiencty of 85%?
Determine the proper value for C if the flow field is to be incompressible. Calculate the acceleration of a fluid particle located at the point (x, y) = (3, 2). Sketch the flow streamlines in the x
A 70kg rectangular door measures 1.2m wide by 2.3m tall. It closes automatically using two hinges with torsional springs mounted on the vertical edge of the door.
Obtain a general expression for the acceleration of a fluid particle in this velocity field. Calculate the acceleration of fluid particles at the points (x, y) = (0.5, 2), (1, 1), and (2, 0.5),
A steel pipe of 100-mm diameter is to support the loading shown. Knowing that the stock of pipes available has thickness varying from 6mm to 24mm in 3-mm increments, and that the allowable normal s
Heat loss of 0.3 kW occurs from the compressor to the surroundings. Consider variable specific heats for air. Calculate the change in specific entropy (kJ/kg-K) of air.
A car radiator has an effective heat transfer area of ??15 m2. Cooling water temperature is 85 C in and the 60 C out of the radiator. The engine power is 25 hp and its effective thermal efficiency i
Where the x- and y-coordinates are in m and the magnitude of the velocity is in m/s. Determine if there are any stagnation points in this flow field, and if so, where are they.
One would like to find preheat 2 tons / h of a solution with a specific heat capacity of 3.35 kJ / kg * K from 15 C to 70 C using hot water. The water temperature drops from 95 C to 35 C. Heat thru
A well-insulated rigid tank contains 5 kg of a saturated liquid-vapour mixture of water at 100kPa.Initially.three-quarters of the mass is in the liquid phase.
The device is not insulated and operates in an environment of 90 degree F. Evaluate whether the second law of thermodynamics is violated. Provide quantitative justification.
A small motor weighing 19.3 lbs is mounted on 4 springs in parallel in such a manner that only vertical motion is possible . Each isolator has a k=45 lb/in and the total damping in the entire system
If the turbine is 90 percent efficient, how much energy can be produced if the water is emitted to the atmosphere through a 20 cm diameter pipe?
Saturated liquid water at 8.58Mpa undergoes a reversible isothermal process in a cylinder until the pressure reaches .100Mpa. Calculate the heat transfer and work per kg of water for this process.
A 90 percent efficient turbine accepts water at 400 kPa in a 16 cm diameter pipe. What is the maximum power output if the flow rate is (a) 0.08 m3/s.
To maintain a dwelling steadily at 68 F on a day when the outside temperature is 32 F, heating must be provided at an average rate of 700 Btu/min.
If the volume flow rate at the exit is 1.5 m3/s ; the inlet area is 0.06 m2 ; and the outlet area is 0.12 m2 ; determine Average velocity of air at the turbine outlet. Power produced by the turbine.
What is the maximum electric power (per kilogram of water) that can be obtained from a hydroelectric power station located at the foot of a 350m dam? Please use exergy analysis and state your assum
Two blocks of equal masses of the same material with constant specific heat are initially at temperature twice that of the ambient where T, ambient = 300 K. Using only the environment, the heat capa
After passing through the evaporator, the refrigerant exits as saturated vapor as 12 °C. The compressor uses 1.6 kW of power. What is the actual heat pump COP for this system?
Using the numbers from part a. simulate city driving with the Corolla. Make an assumption on the average number of stops per mile the carmakes and the average in-town driving speed. Adjust these num
Air at 1 atm and 15 C blows parallel to the 8m side at a velocity of 6 m/s. Determine the heat loss from the solar collector to the air, and the drag force on the solar collector from the wind.
The water will be heated by passing it through a 2m long section of the tube where the surface temperature is being maintained at a constant temperature of 110 degrees C.
The water will be cooled to 20 degrees C by passing it through a cold section of the tube where the surface of the tube is being maintained at a constant temperature. The cold section of the tube is
The convection heat transfer coefficient in the furnace is uniform and 215 W/m^2-K. Determine the time it takes to heat the plate to the target temperature of 600°C.