Determine the overall efficiency of the motor-pump unit
Water is pumped from a lake to a storage tank 40 m above at a rate of 55 L/s, while consuming 22.6 kW of electric power to run the motor. Determine the overall efficiency of the motor-pump unit.
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What is the specific gas constant for this gas in (j/kg-k), initial mass of the O2, final mass of O2, chang in total internal energy contained in the cylinder.
The inlet area of the compressor is 130 CM^2. Assuming surrounding to be 25C find:the reversible power in kw and the entropy generation in kw and irreveribility in kw.
A 1 ton car is climbing a 200 m long uphill road with a slope of 30° from horizontal. What is the power required to get the work done in 15 seconds at a constant velocity?
The cost of electricity is 10 cents per kWh. What is the yearly electricity cost of this refrigerator, assuming that it runs only half the time?
A hydraulic power generation (turbine-generator) plant is installed at a site 200 m below the free surface of a large water reservoir that can supply water at a rate of 3800 kg/s steadily.
What are the sources of error in your system? How can you minimize the experimental error? How would you modify this system to determine the specifi heat of a solid?
On an overflow structure of 50 degrees slope the water depth (measured normal to the surface of the structure) is 1.2 m (4 ft) and the streamlines are essentially straight and parallel.
Account for variation of specific heats with temperature and model the engine as a dual cycle. Determine the amount of heat supplied per cylinder.
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