What radius just before it enters the turbines

Reference no: EM13981168

A hydroelectric power plant draws water from a lake who surface is 55 m above the turbines. It draws the water through pipe with radius 1.2 m. (P_atm = 100 kPa, ρ_water = 1000 kg m^-3)

a. If, at point A, 55 m below the surface of the lake, the pipe, is horizontal and the water is flowing through it at a rate of 9 m s^-1, at what pressure is the water? (Hint: compare this point to the surface of the lake using Bernoulli's Law.)

b. In order for the turbines to work most efficiently the water should enter them at a speed of 20 m s ^-1. In order to achieve this the pipe narrows to what radius just before it enters the turbines?

c. What is the pressure just before the water enters the turbines?

d. After passing through the turbines the water is now open to the atmosphere again. At what speed is it traveling (assuming that only a negligible fraction of the energy contained in the flow is removed by the turbines).

Reference no: EM13981168

Questions Cloud

Will you fight the traffic ticket in court : ou estimate that the hill made an angle of 40 degrees with the horizontal. You look up in your owner's manual and find that your car weighs 3000 lb. Will you fight the traffic ticket in court?

Examine the gift tax consequences of the transaction : Examine the gift tax consequences of the transaction based on the use of the irrevocable trust, as compared to direct payments to the grandchildren.

Discuss the characteristics of a learning organization : Creating and maintaining a learning organization involves harnessing all aspects of an organization and focusing them on those tasks. In this assignment, you will discuss the characteristics of a learning organization, how to harness aspects of an..

What do you remember about learning to write as a child : What kinds of writing have you done in school up to now? Which types of writing have been most interesting to you? Which have been least interesting? Why?

What radius just before it enters the turbines : In order for the turbines to work most efficiently the water should enter them at a speed of 20 m s -1. In order to achieve this the pipe narrows to what radius just before it enters the turbines?

Develop a strategy for the client to convert passive income : Develop a strategy for the client to convert passive income into active income deferring immediate U.S. taxation until repatriated home based on your research. Provide support for your recommendation.

Create a plan for the client to transfer property : Imagine you are a CPA representing a client preparing for the formation of a foreign corporation. Create a plan for the client to transfer property into the foreign corporation that will generate the least tax consequences.

Analyze the issue using the economic concepts and theory : Select a news article dated within the previous two months and analyze the issue using the economic concepts and theory learned in this class. Include at least one graph developed in our course.

What is the specific heat of the substance : A sample of an unknown substance has a mass of 89.5 g. If 345.2 J of heat are required to heat the substance from 285 K to 305 K, what is the specific heat of the substance

User Account

All Pages