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Pressurized water
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- A turbine is driven by a system that enters the turbine at the ff. conditions: 500 kg/h, 44 atm, 450 deg C, 60 m/s linear speed. The steam exits at a point five meters below the inlet stream of the turbine with the following conditions: atmospheric pressure, 360 m/s speed. 70,000 W of shaft work is delivered by the turbine while 104 kilocalories/h heat is lost. Here are the questions to be answered: 1. Why is the value of Wexp 0? (Explain) 2. Given the above values, can you calculate the Wflow? (Yes/No)arrow_forwardQ=2000J =? out m (kg/s) D=0.1m air Air at (4.75x10^2) K flows out of a circular pipe at 101325 Pa as shown in Figure. The mass flowrate of the air at the pipe entrance is 0.0093 kg/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet Velocity if 2000 J of heat is added to the pipe. Answer should be in m/s with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible.arrow_forwardA reservoir of volume V with an ideal gas of molecular mass M and specific heat ratio k is initially at pressure p1 and temperature T1. The reservoir then begins to be supplied at constant flow m˙ and with the same gas, at the inlet temperature given by Te , also constant. (a) Calculate the time required for the final mass of the reservoir to increase by 4 times (m2 = 4m1); (b) Assuming the process is isothermal, calculate the time required for the pressure to from the reservoir increases by 4 times (p2 = 4p1), and calculate the rate at which heat is removed from the reservoir. reservoir Q˙ r ; (c) Assuming that the process is adiabatic, calculate the time required for the pressure of the reservoir increases by 4 times (p2 = 4p1). Calculate the final temperature T2 for this situation.arrow_forward
- A turbine is driven by a system that enters the turbine at the ff. conditions: 200 kg/h, 39 atm, 501 deg C, 49 m/s linear speed. The steam exits at a point 8 meters below the inlet stream of the turbine with the following conditions: atmospheric pressure, 290 m/s speed. 69000 W of shft work is delivered by the turbine while 100 kcal/h heat is lost. What is the value of (a) expansion work and (b) flow work? If the value is zero, explain why is it so.If it cannot be calculated, explain why.arrow_forwardA blade pair in an axial flow compressor is being designed. The axial flow component of gas velocity is 174m/s. The engine diameter at the mean blade height is 0.73m and the blade height at the rotor inlet is 0.21m. The rotor's absolute inlet flow angle is 26 degrees. The stagnation conditions at the inlet to the blade pair are 298K and 130kN/m² Using Cp 1.005k/kg/K, R-0.287k/kg/K, and taking the ratio of specific heat capacities as 1.4, calculate the engine mass flow rate to the nearest kg/sarrow_forward2. An ideal gas, following the relationship (Pv = 75 m2/s²), flows in a horizontal pipe at a constant temperature. The internal diameter of the pipe is 0.025 m and the pressure drop is 11 kPa for each 5m length. Calculate the mass flow rate per unit area in kg/sm2, assuming the pressure at the end of the pipe is 12 kpa and the friction factor f = 0.009. Ignore the kinetic energy.arrow_forward
- Water is pumped up to 8 m height. The pump operates in steady state, and it is perfectly insulated. Pressure increase over the pump is 850 kPa. The velocity of the water at the pump inlet w is 1 m/s and at the outlet w₂7 m/s. The diameter of the inlet d' is 0.12 m. The water is saturated at the inlet, and the temperature Tis 18 °C. The density of the water is assumed to be constant. The efficiency of the pump n is 77.0 %. Reduce the equation for energy balance with the given assumptions, and calculate the power of the pump and the fraction of kinetic energy. 0 = P + + qmh₂ h₁ + Read from h,s-chart Specific volume of inlet water v Power of pump P 2 w² - w² 2 The share of kinetic energy of the total pump power -2₁)) + g(²₂ — Z₁)arrow_forwardanswer is provided and mass flow rate is 4.2 kg/secarrow_forwardQ=2000J Vout =? m (kg/s) D=0.1m air Air at (4.65x10^2) K flows out of a circular pipe at 101325 Pa as shown in Figure. The mass flowrate of the air at the pipe entrance is 0.0093 kg/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet Velocity if 2000 J of heat is added to the pipe. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answerarrow_forward
- Q3/A combustion chamber consists of tubular combustors of 15-cm diameter. Compressed air enters the tubes at 550 K, 480 kPa, and 80 m/s. Fuel with a heating value of 42,000 kJ/kg is injected into the air and is burned with an air-fuel mass ratio of 40. Approximating combustion as a heat transfer process to air, determine the temperature, pressure, velocity, and Mach number at the exit of the combustion chamber.arrow_forwardI need a solution ASAP Problem -1 A tank is initially empty. A liquid with p = 62.4 Ibm/ft is poured into the tank at a constant mass flow rate of m = 7 Ibm/s. The tank has cross-sectional area A = 0.2 ft, and the fluid in the tank has a variable height H(t). There is a hole at the bottom of the tank. The fluid flows out of the tank at a rate proportional to the fluid height: me = kH, where k = 1.4 Ibm/ft/s. Find H(t). A sketch is given in Fig. P.1. Figure.P.1: Sketch of tank filling problemarrow_forwardQ=2000J Vout =? m (kg/s) D=0.1m air Air at (5.15x10^2) K flows out of a circular pipe at 101325 Pa as shown in Figure. The mass flowrate of the air at the pipe entrance is 0.0093 kg/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet Velocity if 2000 J of heat is added to the pipe. Answer should be in m/s with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer DELLarrow_forward
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