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1. A low-temperature power plant operates with R-410a maintaining -20?C in the condenser and a high pressure of 3 MPa with superheat. Find the temperature out of the boiler/super heater so that the turbine exit temperature is 60?C, and find the overall cycle efficiency.
2. A low-temperature power plant should produce turbine work of 2.5 MW. It operates with carbon dioxide maintaining -10?C in the condenser, a high pressure of 6 MPa, and it superheats to 100?C. Find the turbine exit temperature, the mass flow rate required, and the overall cycle efficiency.
You will probably have to guess at some of the hidden features, but try to produce a complete, plausible detail. Add explanatory notes to make everything clear.
What is atomic packing factor? Which crystalline structures exhibit the maximum atomic packing factor values? Please provide detailed solutions, steps and explanations
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A student is trying to test the braking ability of her car determined that she needed 18.5 ft more to stop her car when driving downhill on a road segment of 5% grade than when driving downhill at the same speed along another segment of 3% grade.
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An ideal Sterling cycle operates between thermal energy reservoirs at 27 degrees C and 527 degrees C. The maximum cycle pressure is 2000 kPa. Determine the net work produced each time this cycle is executed, and the cycle's thermal efficiency
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A circular hatch, 2-m in diameter has its top 10-feet under water ( fresh water s.g. = 1.0), and is hinged on the bottom, and held closed on the top with a single bolt. Perform a moment balance about the hinge
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