rom the turbine the heat loss per kg of steam flow rate is 5 kW. Find the power developed in kW by the steam turbine per kg of steam flow rate?
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From the turbine the heat loss per kg of steam flow rate is 5 kW. Find the power developed in kW by the steam turbine per kg of steam flow rate?
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- A 0.2 m3 vessel contains 120 kg of water at 90 ⁰C. Determine pressure, specific and totalinternal energy, specific and total enthalpy, and specific and total entropy ***please with a clear handwritingClassify internal combustion engines taking various factors into consideration. What is athermodynamic temperature scale or absolute temperature scale? Explain theestablishment of such a scale.mnot Tnot = 75°C Tout-? %3D mcold Tcod = 18°C %3D Hot and cold stream of water are mixing together as shown in Figure. The temperature of the hot and cold streams at the inlet are 75 deg-C and 18 deg-C, respectively. Mass flow rates of the hot and the cold streams are (1.50x10^-1) kg and (1.000x10^-1) kg, respectively. Find the temperature of the mixed stream. The specific heat of the hot water stream is 4000 J/kg-K and the cold stream is 3800 J/kg-K. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: х10 Answer
- Consider 5.0 kg/s of water at 1 MPaa, 500 °C, that enter an ideal steadystate, steady-flow turbine and, after isentropic expansion, exhausts at0.025 MPaa: ∆P = 0, ∆K = 0. Determine:a) the final temperatureb) the quality of steam at the turbine exhaustc) the turbine workd) If the turbine efficiency is 90%, determine the steam quality ortemperature of steam at the turbine exhaust and the turbine output6) Steam enters a turbine at a pressure P-2.0MPA, temperature T1=500°C and enthalpy hi=3062 kJ/kg with a velocity Vi=10 m/s. The steam leaves the turbine as a gas-liquid mixture at a pressure P2=101kPa, temperature T2-373 K, and enthalpy ha=2621 kJ/kg with a velocity of v2-50 m/s. Thermal energy is lost through the turbine walls at a rate of 5 kJ/hr. The elevation difference between the entrance and exit of the turbine can be neglected. Calculate the power output in units of kW if 4000 kg/hr of steam pass through the turbine. %3D 4ニ-13815/5ec Pi thz + 6. 2Xla メSo? 2K9.81 3062 x103 1389 10 + é 621 X1s*) !8א2 ll rel 1o0ox4.21 looo X 9.81 2.mnot Thot = 75°C %3D Tout-? mcold Tcold 18°C %3D Hot and cold stream of water are mixing together as shown in Figure. The temperature of the hot and cold streams at the inlet are 75 °C and 18 °C, respectively. Mass flow rates of the hot and the cold streams are (1.50x10^-1) kg and (1.000x10^-1) kg, respectively. Find the temperature of the mixed stream. The specific heat of the hot water stream is 4000 J/kg-K and the cold stream is 3800 J/kg-K. Answer should be in °C with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Activate W Go to SettingS x10 (?) 9°C 2020 近
- Calculate the volume, density, enthalpy and entropy of 2 kg of steam at 80°C and dryness fraction of 0.85. From steam Table 1 (Appendix A-1), the specific properties of steam at t = 80°℃ 4₂ (°C) P V₂ Specific entropy Specific enthalpy (kJ/kg) (kJ/kg) (bar) (m³/kg) he hig hg St Sig 80 0.4736 3.409 334.9 2308.8 2643.7 1.075 6.538 7.613 | |A 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.A 0.6 m3 tank contains gas at a pressure of 5800 kPa gage, a temperature of 75 deg. Celsius and mass of 25 kg. A part of this gas was discharged and the temperature and pressure changed to 60deg. Celsius and 4130 kPa respectively. Heat was applied and the temperature was back to 75 deg. Celsius. Find: (a) the final mass in the tank in kg CHOICES 9.36 15.63 18.283 (b) the discharged mass in kg. CHOICES 6.716 15.63 9.36 (c) the final pressure of the gas in kPa gage CHOICES 4215.56 5135.88 4135.88
- This thermodynamics statement is false to say that a basic way to reduce the mean velocity of water flowing through a pipe for a given mass flow rate and density is to decrease the inside diameter of the pipe? Why is this statement false? Please explain. Thank you!Steam enters a turbine with a pressure and temperature of 15 MPa and 650°C, respectively, and leaves as saturated vapour at 100 kPa. The cross-sectional area at the turbine inlet and exit are 0.045 m² and 0.31 m², respectively. The steam flows steadily through the turbine with a mass flow rate of 30 kg/s. i) Sketch the schematic diagram of the turbine and label all parameters given. ii) Calculate the velocity of the steam at inlet, (m/s). iii) Determine the velocity of the steam at exit, (m/s). iv) Calculate the power produced (MW). v) State any assumptions made.Identify if the property of the following steam: Temp Internal Energy Specific Entropy C kJ/kg kJ/kg-K 322 1915