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Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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3. Derive the conservation of energy equation from Reynolds’ transport theorem and the first law of thermodynamics. Also, deduce the Bernoulli equation from the conservation of energy. Briefly, discuss socio-economic consequences of big dam projects ( Page In the experiment using the venturi meter, you noticed pressure taps on the venturi (stagnation tubes) and within the venturi, normal to the flow (pitot tube). What pressure does each apparatus measure? ( b. A hydraulic engineer estimates power generation and annual energy savings for a homeowner. The owner has a small stream flowing on an average of 2 cfs at an average yearly temperature of 50°F. The stream is at an elevation of 40 ft above the owner's residence. The owner wants to dam the stream and diverts the flow through a penstock, spinning a hydraulic turbine. The turbine will drive a generator producing electricity. Estimate the maximum electrical power in kilowatts when the head loss is 5 ft, the turbine is 70% efficient, and the generator is 90% efficient. The electricity from the grid would cost 7 cents per KWH. A neat sketch of the system will aid in your calculation. а.
Transcribed Image Text:3. Derive the conservation of energy equation from Reynolds’ transport theorem and the first law of thermodynamics. Also, deduce the Bernoulli equation from the conservation of energy. Briefly, discuss socio-economic consequences of big dam projects ( Page In the experiment using the venturi meter, you noticed pressure taps on the venturi (stagnation tubes) and within the venturi, normal to the flow (pitot tube). What pressure does each apparatus measure? ( b. A hydraulic engineer estimates power generation and annual energy savings for a homeowner. The owner has a small stream flowing on an average of 2 cfs at an average yearly temperature of 50°F. The stream is at an elevation of 40 ft above the owner's residence. The owner wants to dam the stream and diverts the flow through a penstock, spinning a hydraulic turbine. The turbine will drive a generator producing electricity. Estimate the maximum electrical power in kilowatts when the head loss is 5 ft, the turbine is 70% efficient, and the generator is 90% efficient. The electricity from the grid would cost 7 cents per KWH. A neat sketch of the system will aid in your calculation. а.
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