A turbine is fed with a flow of 20 kg/s of water vapour at 4MPA. The steam is generated in a boiler that supplies it saturated to 6MPA, which is then strangled through a valve prior to entering the turbine to meet the conditions imposed. The process that occurs in the turbine can be considered adiabatic. It is known that at the exit of the turbine the substance is found at 0. 5 MPa. In addition, it is known that the isentropic efficiency of the process that happens in the turbine is 75% (a) Schematize the system. b) Determine the entropy generated by the strangulation (valve) and explain the effects of pressure drop on this specific process. c) Determine the actual power delivered by the turbine and the entropy generated by it process. (d) Represent the overall process (valve and turbine) in a diagram P-v and T-s.

A turbine is fed with a flow of 20 kg/s of water vapour at 4MPA. The steam is generated in a boiler that supplies it saturated to 6MPA, which is then strangled through a valve prior to entering the turbine to meet the conditions imposed. The process that occurs in the turbine can be considered adiabatic. It is known that at the exit of the turbine the substance is found at 0. 5 MPa. In addition, it is known that the isentropic efficiency of the process that happens in the turbine is 75% (a) Schematize the system. b) Determine the entropy generated by the strangulation (valve) and explain the effects of pressure drop on this specific process. c) Determine the actual power delivered by the turbine and the entropy generated by it process. (d) Represent the overall process (valve and turbine) in a diagram P-v and T-s.

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

Answer it correctly please and explain your answer. I will rate accordingly.
hints: The ﬂask will be filled with water (at a constant rate of 500 gallons per minute). It will take me exactly 10 minutes to escape from the chains. The diameter of the tank at 1 foot intervals. I am 5 feet 9 inches tall, and I'm pretty skinny so that you can ignore both my volume and the volume of the stool in your analysis. A gallon is equal to 0.13368 cubic feet. You can think of the volume and the height of the water as functions of time. You can easily find an expression for V (t), and then use your expression for volume in terms of height to solve for h(t). after 10 minutes amount of water in the tank=66.84 ft3 t=69.3 minutes h(t)=e66.84t/100pi -1 h(10)=e66.84(10)/100pi -1=7.39 ft Height of stool=1.64 ft Height of water in the tank=7.39 ft Questions: show work How fast is the water rising? I would like to know how long I will have to hold my breath during the last part of the stunt.
It is the ability of a liquid to spread out.
can you solve part B without just using those tables to find the answer?
An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J). It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).
hints: The ﬂask will be filled with water (at a constant rate of 500 gallons per minute). It will take me exactly 10 minutes to escape from the chains. The diameter of the tank at 1 foot intervals. I am 5 feet 9 inches tall, and I'm pretty skinny so that you can ignore both my volume and the volume of the stool in your analysis. A gallon is equal to 0.13368 cubic feet. You can think of the volume and the height of the water as functions of time. You can easily find an expression for V (t), and then use your expression for volume in terms of height to solve for h(t). after 10 minutes amount of water in the tank=66.84 ft3 t=69.3 minutes h(t)=e66.84t/100? -1 h(10)=e66.84(10)/100? -1=7.39 ft Height of stool=1.64 ft Height of water in the tank=7.39 ft Questions: show work How fast is the water rising? I would like to know how long I will have to hold my breath during the last part of the stunt.
P-4 Please I need help with this question needed very clearly and step by step explanation and needed with clear handwriting please, will be really appreciated for your help
What’s the correct answer please?
The solution (298.349) is incorrect as well.
13. The amount of heat (Hth, thermal energy) stored in rocks, m = 500 kg, S = 840 J/(kg °C), Tfinal =50°C, Tinitial = 40°C is: ·Hth = 19*10E(6) Joules. ·Hth = 4.2 * 10E(6) Joules. %3D ·Hth = 4.2*10E(4)Joules. %3D
Describe processes occur in a certain direction, and not in the reverse direction.
Describe the volume flow rate is the volume of fluid flowing through a cross section per unit time.