FUND OF ENG THERMODYN(LLF)+WILEYPLUS
9th Edition
ISBN: 9781119391777
Author: MORAN
Publisher: WILEY
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This is definitely incorrect. The PV diagram shows the cycle traveling in the wrong direction. For example, per the VT diagram, the pressure from 4 to 1 must decrease, as it is cooling off with constant volume. In the solutions PV diagram, the pressure from 4 to 1 is increasing.
1. Specify whether the steam is wet, saturated, or superheated for the following conditions:
(a) t = 84°C, p = 55.6 kPa ____________________________________(b) p = 0.2 MPa, v = 0.9846 m3/kg ____________________________________
(c) t = 150°C, h = 2864.7 kJ/kg____________________________________(d) t = 232°C, s = 5.1038 kJ/kg-K____________________________________(e) p = 22.09 MPa, u = 2029.6 kJ/kg ____________________________________
Draw a schematic diagram to describe the technology of Compressed Air Energy Storage (CAES) and adiabatic CAES.
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- 27. An electric calorimeter samples steam with a line pressure of 0.175 MPa. The calorimeter adds 200 W of electricity to sampled steam having a resultant pressure of 100 kRa, temperature of 140°C, and a flow rate of 11 kg/h. Determine the main steam quality. 28. Three kilograms of ammonia are expanded isothermally in a piston-cylinder from 1400 kRa and 80'C to 100 kPa, The heat loss is 495 kJ/kg. Determine (a) the system work: (b) the change of enthalpy: (c) the change of internal energy 29. Refrigerant 12 is expanded steadily in an isothermal process. The flow rate is 13.6 kg/min with an inlet state of wet saturated vapor with an 80% quality to a final state of 70°C and 200 kPa, The change of kinetic energy across the device is 3.5 ki/kg and the heat added is 21.81 kw. Determine the system power.arrow_forwardA reheat cycle with two stages of reheating is executed, with steam expanding initially from 90 bar and 530°C. The two reheater pressures are 10 bar and 0.6 bar, and the steam leaves each reheater at 480°C. Condensation occurs at 0.03 bar. For an ideal cycle, find QA in kJ/kg.arrow_forward3.arrow_forward
- 2. Steam at 10MPaa, 550°C enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10 kPaa and extraction of steam is at 1 MPa. a. Sketch the schematic diagram showing the correct state points and its components b. Sketch the T-s diagram showing the states c. Determine all enthalpiesarrow_forwardThe figure below gives the schematic of a vapor power plant in which water steadily circulates through the four components shown. The water flows through the boiler and condenser at constant pressure and through the turbine and pump adiabatically. Kinetic and potential energy effects can be ignored. Process data follow: Process 4-1: constant pressure at 7 MPa from saturated liquid to saturated vapor Process 2-3: constant pressure at 14 kPa from x2 = 69.6% to x3 = 32.7% Pump lin Boiler Condenser Qout 1 Turbine W₁arrow_forwardIn a steam power plant, dry saturated steam enters the turbine at a pressure of 40 bar and exits the turbine at a pressure of 0.1 bar. The turbine has an isentropic efficiency of 90 %, and the condensate pump has an isentropic efficiency of 85 %. The water/steam mass flow rate through the plant is 200 kg/s, and all changes in kinetic and potential energy are negligible. Using this information, determine: a) The power output of the turbine, in MW. b) The power required by the pump, in MW.arrow_forward
- Problem 4: An engine operating on an ideal Diesel cycle has a cylinder volume when the piston is at bottom-dead-center (BDC), V₁ 1 liter = 0.001 m³. The intake pressure and temperature are P₁ = 300 K. The engine cycle contains the following processes: 100 kPa and T₁ = Adiabatic compression to V₁/24. Constant pressure heating to V₁/14. =arrow_forwardDescribe the components of a steam power plant and demonstrate the process of it undergoes.arrow_forwardSHOW COMPLETE AND LEGIBLE SOLUTION. FAST ANSWERS WILL BE GIVEN UPVOTE. ANSWER B ONLY.arrow_forward
- = 10000 kg/h. Also, the plant has Q2. There are many electrical power plants in Iraq. The rate of steam flow : the following data refer to a simple steam power plant : Calculate : (i) Power output of the turbine. (ii) Heat transfer per hour in the boiler and condenser separately. 65 bar 70 bar 400°C Boiler 1 60 bar, 380°C 4 Wout Pump Turbine G Electricity 2 0.1 bar, 0.9 dry 3 Condenser 0.09 bar Saturated liquidarrow_forwardA reheat cycle with two stages of reheating is executed with steam expanding initially from 25 MPa and 600 °C. The two reheater pressures are 4 MPa and 1 MPa, and the steam leaves each reheater at 600 °C. Condensation occurs at 40°C. For 1 kg/s of steam, what is QA in kW? Remember, 1. For values taken from the steam tables: Use them as is, do not round off. 2. For values obtained by interpolation and final answers obtained by solving, use FOUR (4) decimal places. 3. Use the steam tables providedarrow_forwardPlease asaparrow_forward
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