Steam enters the first-stage turbine shown in Figure (right) at 40 bar and 500°C with a volumetric flow rate of 90 m³/min. Steam exits the turbine at 20 bar and 400°C. The steam is then reheated at constant pressure to 500°C before entering the second-stage turbine. Steam leaves the second stage as saturated vapor at 0.6 bar. For operation at steady state, and ignoring stray heat transfer and kinetic and potential energy effects, determine the a. mass flow rate of the steam, in kg/h. b. total power produced by the two stages of the turbine, in kW. Steam P₁= 40 bar 7₁-500°C (AV), -90 m/min Turbine P20 bar 7₂-400°C Reheater h Quer Turbine Py=20 bar 7₁-500°C Saturated vapor. Pa 0.6 bar Power

Steam enters the first-stage turbine shown in Figure (right) at 40 bar and 500°C with a volumetric flow rate of 90 m³/min. Steam exits the turbine at 20 bar and 400°C. The steam is then reheated at constant pressure to 500°C before entering the second-stage turbine. Steam leaves the second stage as saturated vapor at 0.6 bar. For operation at steady state, and ignoring stray heat transfer and kinetic and potential energy effects, determine the a. mass flow rate of the steam, in kg/h. b. total power produced by the two stages of the turbine, in kW. Steam P₁= 40 bar 7₁-500°C (AV), -90 m/min Turbine P20 bar 7₂-400°C Reheater h Quer Turbine Py=20 bar 7₁-500°C Saturated vapor. Pa 0.6 bar Power

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

See similar textbooks

Similar questions

Steam enters the first-stage turbine shown in the figure at 40 bar and 4500C with a mass flow rate of 40,000 kg/hr. Steam exits the first-stage turbine at 20 bar and 400°C. The steam is then reheated at constant pressure to 500°C before entering the second-stage turbine. Steam leaves the second stage as saturated vapor at 0.6 bar. Assume steady state operation and ignore stray heat transfer and kinetic and potential energy effects. Saturated Steam vapor P1 40 bar Tут P4= 0.6 bar Power Turbine Turbine P2 20 bar T2 400°C P3 20 bar T3 500°C Reheater Qrehealer Determine the volumetric flow rate of the steam at the inlet to the first-stage turbine, in m/min, the rate of heat transfer to the steam flowing through the reheater, in kW, and the total power produced by the two stages of the turbine, in kW.
Question 19 Steam enters the first-stage turbine shown in the figure at 40 bar and 500°C with a mass flow rate of 110000 kg/hr. Steam exits the first-stage turbine at 20 bar and 400°C. The steam is then reheated at constant pressure to 500°C before entering the second-stage turbine. Steam leaves the second stage as saturated vapor at 0.6 bar. Assume steady state operation and ignore stray heat transfer and kinetic and potential energy effects. Steam + P₁ = 40 bar T₁, mi Wcv Turbine = P₂ = 20 bar T₂=400°C Reheater Turbine P3 = 20 bar T3 = 500°C 4 + Qreheater Determine the volumetric flow rate of the steam at the inlet to the first-stage turbine, in m³/min, the rate of heat transfer to the steam flowing through the reheater, in kW, and the total power produced by the two stages of the turbine, in kW. Step 1 Determine the volumetric flow rate of the steam at the inlet to the first-stage turbine, in m³/min. (AV) 1 m³/min Step 2 Determine the total power produced by the two stages of the…
Steam enters a well-insulated turbine at 500 bar and 600oC with a velocity of 100 m/s. The stream exits the turbine at 5 bar and 225oC with a velocity of 200 m/s. The turbine produces 32.5 MW of power. Calculate the steam mass flow rate (kg/s) through the turbine and the diameter (m) of the exit line assuming it is a cylindrical pipe.
In the following question you may ignore changes in elevation and velocity of the fluid. (a) In a steam power plant liquid water enters the boiler at a temperature of 40°C and exits as wet steam at a pressure of 15 bar with a dryness fraction of 0·95. Find the heat transfer per kg to the steam. (b) The wet steam passes through a superheater and emerges at a pressure of 15 bar and temperature of 300 °C. It then passes through a turbine, generating 400 kW of power as it does so, and comes out as wet steam at a pressure of 1 bar. The mass flow rate is 0·57 kg/s. There is no heat loss from the turbine. (i) Show that the exit specific enthalpy is about 2337 kJ/kg. (ii) Find the dryness fraction of the steam at the turbine exit. (c) Sketch the T-S diagram for the Rankine (steam plant) cycle and describe the processes. Also indicate on the diagram the points corresponding to the inlet and outlet of the boiler, superheater and turbine.
A simple closed cycle gas turbine plant receives air at 1 bar and 150C and compresses it to 5 bar and then heats it to 8000 C in the heating chamber. The hot air expands in a turbine back to 1 bar. Calculate the power developed per kg of air supplied per second. Take Cp for air as 1 kJ/kg K? Please answer step by step. Answer must be correct. Do all calculation step by step.
A well-insulated turbine operating at steady state with a steam flow rate of 40 kg/s It produces MW of power. Water vapor enters the turbine at 360°C at a speed of 35 m/s. 0.06 from turbine bar pressure and 120 m/s velocity as saturated steam. Potential energy effects are neglected. is being done. Determine the inlet pressure in bar.
5. The cooled water from a cooling tower returns to the condenser at 21°C at a mass flow rate of 54.4 kg/s. The air entering at state 1 has h₁ = 47.7 kJ/kg da and w₁ = 0.006 kg v/kg da. The air leaving the cooling tower at state 2 has h₂ = 116.5 kJ/kg da and w₂ = 0.027 kg v/kg da. The makeup water is supplied at 25°C and the mass flow rate of dry air is 54.4 kg da/s. What is the temperature of the warm water entering the tower? Express your answer in °C.
Steam enters a turbine at 30 bar, 300°C (u = 2750 kJ/kg, h = 2993 kJ/kg) and exits the condenser as saturated liquid at 15 kPa (u = 225 kJ/kg. h = 226 kJ/kg). Heat loss to the surrounding is 50kJ/kg of steam flowing through the turbine. Neglecting changes in kinetic energy and potential energy, what is the work output of the turbine (in kJ/kg of steam)?
A reciprocating compressor delivers 0.1 kg/s of air at a pressure of 12 bar. The air enters the compressor at a pressure of 1 bar and a temperature of 15' C. Calculate the delivery temperature of the air, the work transfer rate and the heat transfer rate in the compression process for: i. reversible polytropic compression, Pv1 ii. reversible adiabatic compression: iii. reversible isothermal compression
2. Steam at 50 bar and 600°C enters an adiabatic turbine and leaves as saturated vapor at 1.5 bar. The elevation of the entrance is 3 m above the exit. The velocities at the entrance and exit are 3 m/s and 0.3 m/s, respectively. What is the specific power produced in the turbine? How much do potential and kinetic energies contribute to this power?
A turbine running well at steady state produces 23 MW with a steam flow rate of 40 kg. Water vapor turbines enter at 360°C at a speed of 35 m/s. It increases as steam rapidly from the turbine at 006 bar pressure and 120 m/s speed. driven by strong power. Set it as a bar in the entrance.
Air (Rair = 0.287 ) as an ideal gas flows through the turbine and heat exchanger arrangement kg-K, shown below. Steady-state data are given on the figure. Stray heat transfer and kinetic and potential energy effects can be ignored. Sketch a T - s diagram of processes 1-4 and determine: (a) The entropy production of turbine 1 [3.2 kW /K] (b) The isentropic efficiency of turbine 1 [75%] (c) The exit temperature of turbine 2 if its isentropic efficiency is nr, = 0.85 [960 K] (d) The entropy production within the intermediate heat exchanger [3.2 kW/K] W1 = 10,000 kW Wn= ? Turbine Turbine P3= 4.5 bar T3 = ? T = 1100 K P2=5 bar P4 = 1 bar Air wwww www 2 4 T = 1400 K Pi = 20 bar Ts = 1480 K 5 Ps = 1.35 bar ms = 1200 kg/min Heat exchanger V T = 1200 K P6 =1 bar %3D Air in