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- Liquid water at 100 kPa, 30 °C, enters a pump with a flow rate (rin) of 18 kg/s with a velocity of 2 m/s. At the exit the corresponding properties are 1000 kPa, 30.1 °C, 18 kg/s , and 5 m/s. Part A Determine the flow work (Wp) at the pump inlet. Express your answer to three significant figures. V AE¢ It vec ? kW Submit Request Answer Part B Determine the flow work (Wp) at the pump exit. Express your answer to three significant figures. Tvo| AE¢ I vec kWThe index of expansion n. Q5: A-Steam enters a turbine with a velocity of 35 m/s and specific enthalpy 2990 kJ/kg . the steam leaves the turbine with a velocity of 25 m/s and specific enthalpy 1530 kJ/kg . the heat lost tothe surroundings as the steam passes through the turbine is 23 kJ/kg .the steam flow rate is 32400kg/h determine the work output from the turbine in kilowatts. B- 0.018 m' gas at a pressure of 3.070 Kpa exnands to a pressure of 00207 according toThe figure below shows a mixing tank initially containing minitial = 2000 lb of liquid water. The tank is fitted with two inlet pipes, one delivering hot water at a mass flow rate of 0.8 lb/s and the other delivering cold water at a mass flow rate of 1.2 lb/s. Water exits through a single exit pipe at a mass flow rate of 2.5 lb/s. Hot water m₁ = 0.8 lb/s mfinal= i Determine the amount of water, in lb, in the tank after 0.5 hours. minitial lb 2 Cold water m₂ = 1.2 lb/s m3 = 2.5 lb/s
- Steam enters an adiabatic nozzle at 1378 kPa, a velocity of 3.05 m/s, a specific volume of 0.147 m³xkg1 and a specific internal energy of 2510 kJ/kg. The exit conditions are 137.8 kPa, specific volume of 1.099 m³xkg and internal energy of 2263 kJ/kg. Determine: a. Exit velocity of stream; and b. Ratio of inlet diameter to exit diameterAir at -40 °C enters a jet combustion chamber with a velocity equal to 150 m/s. The exhaust velocity is 200 m/s, with 297 °C as outlet temperature. The mass flow rate of the gas (air-exhaust) through the engine is 7.6 kg/s. The heating value of the fuel is 45.9 MJ/kg and the combustion (to be considered as an external source) has an efficiency equal to 100%. Assume the gas specific heat at constant pressure (c,) to be 1.25 kJ/(kg K). Determine the kg of fuel required during a 4.8 hours flight to one decimal value.A window air conditioning is operating with Refrigerant -R22. An engineer wants to collect data on the flow rate of the refrigerant. The refrigerant is passed through one inlet and one exit pipe (Flgure 2) of diameter 3 cm steadily at a pressure of 2.5 bar and temperature of 5 °C with a velocity of 3 m/s. Due to heat gain from its surrounding, the refrigerant leaves the pipe at a pressure of 2 bar and temperature of 25 °C. Figure 2. One inlet one exit pipe For the refrigerant, determine (a) The volume flowrate at the pipe inlet (b) The mass flow rate The velocity and volume flow rate at the pipe exit
- SHOW COMPLETE SOLUTION THANK U 1. Steam expands steadily at a constant temperature. The flow rate is 13.6 kg/min with an inlet state of wet steam (water) at 80% quality to a final state of 700C and 2.5 MPa. The change of kinetic energy across the device is 3.5 kJ/kg, and the heat added is 21.81 kW. Determine (a) the enthalpy of conditions 1 &2, (b) the heat transfer in kJ/kg, (c) the work, and (d) the system power.2. 1 kg water at velocity 12.5 m/s and 30oC enters a 2.54 cm diameter horizontal pipe where there is no heat or work exchange with the surroundings. The water suddenly flows through a larger pipe with a diameter of 3.85cm. Calculate the following: a. Velocity of the water leaving the pipe in m/s b. The change in temperature of the water. Cpwater=4.18 ?? ??.K Please answer question number 2.g%2Fs%20debiyle%20girip%20200%200C'%20de%20çıkan%20sica gsoz%20gazlar%20(. Gmail YouTube Çevir Community Downl... A Haritalar Okuma listesi iş İÇİN Giriş yap İNGİLİZCE 口全回 西凸9 Water enters a boiler with a flow of 0.4 kg/s at 540 oC and hot exhaust gases ( cp = 1050 J/kg.K)is boiled at 150 oC. The surface area of the heat exchanger is 0.64 m2. What is the total heat transfer coefficient of this heat exchanger? Çeviri yap: Google Bing
- bläi 3 The gas properties in Fanno flow is influenced by heat exchange duct area variation friction with heat exchange friction heat exchange with duct area variation friction with duct area variationA gas flows steadily through a rotary compressor at a temperature of 16 ⁰C, a pressure of 100kPa, and an enthalpy of 392.2 kJkg-1. The gas leaves the compressor at a temperature of 245⁰C, a pressure of 0.6 MPa and an enthalpy of 534.5 kJkg-1. There is no heat transfer to or fromthe gas as it flows through the compressor. Using the steady flow equation appropriate toeach case, evaluate the external work done per unit mass of gas: a) when the inlet and exit velocities of the gas are negligible b) when the inlet velocity of the gas is 80 ms-1 and the exit velocity of the gas is 160 ms-1.* OMANTEL I. A moodle1.du.edu.om IVidi Keu out or 4.U P Flag question Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and leaves the pipe at 180 kPa and 40°C. The volume flow rate of air at the inlet (m3/s) is Select one: a. 0.608 O b. 0.408 O c. 0.508 d. 0.308 Droviouo nagn Noxt naan