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A solar-thermal-electric power plant collects energy from sunlight focused on a high-temperature collector where solar energy is absorbed by molten material at the rate shown on the graph below. To allow overnight operation, energy is stored in an insulated tank holding a reserve supply of molten material at the melting temperature. As energy is removed the material solidifies. The reserve tank can provide enough stored energy (at 300 kJ per kg of material) to operate the plant for 24 hours with no solar input. The thermal efficiency of the power plant is 30%. The electrical power output is constant (24 hr/day, every day). Given: material density = 2400 kg/m3
Complete a standard schematic diagram of the power cycle: clearly label all terms and show the numeric values. Find the constant power output and volume of the reserve tank?
a 5 kg object a and a 10 kg object b undergo an oblique central impact. the coefficient of restitution is e 0.6.
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Determine the mode shapes and frequencies of vibration of the system of cars by Sweeping the rigid body mode
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Explain what is meant by an overall heat transfer coefficient and explain what is mean by failing and what its effect will be on the value of the overall heat transfer coefficient.
air is compressed in a variable-load piston-cylinder device equipped with a paddle wheel. initially air is at 500kpa
a 250-kg crate b is suspended from a cable attached to a 20-kg trolley a which rides on an inclined i-beam as shown.
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