As shown in the figure, a 260-ft³ tank contains 25 lb of H20 initially at 30 lbf/in2. The tank is connected to a large steam line carryingsteam at 200 lbf/in2, 450°F. Steam flows into the tank through a valve until the tank pressure reaches p2 = 100 lbf/in? and thetemperature is 400°F, at which time the valve is closed.Steam atTank200 lbf/in_².Valve|(1)Initially:30 lbfin.2, mi = 25 lb(2)Finally:P, lbfin.?, 400°F.450°FDetermine the amount of mass that enters the tank, in Ib, and the heat transfer to the tank from its surroundings, in Btu.

Answered: Image /qna-images/answer/8a9522bb-b23d-44b9-a5de-9b463a07c439.jpg

Answered: As shown in the figure, a 260-ft3 tank…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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1. Steam at a temperature of 250oC has a specific volume of 0.15436 m3/kg. What are the pressure, specific internal energy, enthalpy, and entropy?
A 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 provided
p46,#17 with illustration and explanation
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Given: P3 = 4 kPa, x3 = 0.6 , P4 = 4 kPa, T1 = 25 oC, T2 = 35 oC, mdot_steam = 25 kg/s. Find mdot_water (kg/s).mdot_water = _________ kg/s.
Calculate the compressor work in kJ required to compress 1 kg of an ideal gas from an initial volume and pressure of 0.65m3 and 101.3kpa to a final pressure of 517kpa. Compression is with n=1.35. A. 133.6 B. 105.8 C. 148.3 D. 142.7
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Example (7.2): A rigid tank with volume of 1 m³, contains air with 300 kPa and 300°C heated by external heart source. The valve is open allowed to part of air exit to the surrounding according to the relation of PV" = constant, then the valve is close when the final pressure in tank reaches to 100 kPa. Determine the heat transfer to the tank. Assuming n = 1.2.
Q2 O of O points Q2:In a steam power plant operating at steady state is supplied to the high pressure turbine at 5 MPa and 400 °C. after expansion to 500 kPa the steam is reheated at constant pressure to the original temperature. The steam expands in in the low pressure turbine to an exhaust pressure of 10 kPa . Find 1- h:
Solve the problem and show the solution.Note: The answer is given on the bottom right side of the image, just show the solution on how to get it.Thanks!!!
I am getting lost in this practice problem for thermodynamics - thank you! Air at 100 kPa and 280K is compressed steadily to 600 kPa and 400K in an air compressor. The mass flow rate of air through the compressor is 0.02 kg/s and the compressor a heat loss of 16 kJ/kg from the compressor occurs. Assuming steady state steady flow conditions and ideal gas behavior (with constant specific heats, Cp=1.009 kJ/kgK, R=0.287 kJ/kgK, determine: a) The necessary power in put to the compressor(kW).b) The volumetric flow rate of air at the exit of the compressor (m3/s).
I need help with this thermo practove problem that I do not understand- thank you! 2 kg of air in a piston cylinder initially at P1=101 kPa, T1= 300 K undergoes a cyclemade up of three processes: 1-2 Isothermal compression until the volume is (1/15) of its original value.2-3 Constant Pressure heating3-1 Isentropic Expansion back to the initial state Assume air is an ideal gas with constant specific heats with the following values: Cpo=1.027kJ/kgK; Cvo= 0.740 kJ/kgK; R=0.287 kJ/kgK; ɣ=1.388 Fill out the processes table below. Calculate Processes 1-2, 2-3, and 3-1 clearly

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