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Q 1: Consider a combined gas-steam turbine cycle with both machines ideal. Air enters the compressor at 1 atm and 520°R. 400 percent theoretical air gases enter the gas turbine at 2500°R. The pressure ratio for both the compressor and turbine is 8. No intercooling, reheat, or regeneration are used in the gas-turbine cycle. The turbine exhaust is used directly without supplementary firing and leaves to the stack at 900°R. Steam is produced at 1200 psia and 950°F, and the condenser pressure is 1.2 psia. No feedwater heating is used, and the pump work may be ignored. Draw the flow and T-s diagrams labelling points correspondingly, and calculate: (a) The heat added, per pound mass of air, (b) The steam flow, in pounds per pound mass of air, (c) The combined work, in BTUs per pound mass of air, (d) The combined plant efficiency, (e) The plant efficiency if the steam cycle is inoperative, and (f) Perform a full exergy analysis for the combined cycle and identify the key sources of irreversibilities.

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A fruit juice at 20 C with 5% total solids is being concentrated in a single-effect evaporator. The evaporator is being operated at a sufficient…
A fruit juice at 20 C with 5% total solids is being concentrated in a single-effect evaporator. The evaporator is being operated at a sufficient vacuum to allow the product moisture to evaporate at 80°C, and steam with 85% quality ...

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ASSIGNMENT 5: Golden Section Search Method Minimize 54 f(x) = x2 + 200 150 100 50 2 8 10 Figure 5.1 Minimum point is at x = 3. i. ii. Draw a flowchart of algorithm Golden Section Search method. Find ...

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solid constant-diameter shaft is subjected to the torques shown in Figure. The bearings shown allow the shaft to turn freely. (a) Plot a torque diagram showing the internal torque in segments 1, 2 and 3 of the shaft. Use the sign convention. (b) If a solid 1.905 cm diameter shaft is subjected to that particular torque. Determine the maximum shear stress magnitude in the shaft. (c) If the allowable shear stress in the shaft is 80 MPa, determine the minimum acceptable diameter for the shaft.
solid constant-diameter shaft is subjected to the torques shown in Figure. The bearings shown allow the shaft to turn freely. (a) Plot a torque diagram showing the internal torque in segments 1, 2 and 3 of the shaft. Use the ...

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The bars AB and AC are joined by a pin at A and a horizontal cable. The vertical cable carrying the 200-kg mass is attached to the pin at A. Determine the tension in the horizontal cable. Neglect the weights of the bars.
The bars AB and AC are joined by a pin at A and a horizontal cable. The vertical cable carrying the 200-kg mass is attached to the pin at A. Determine the tension in the horizontal cable. Neglect the weights ...

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