Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The demand for electric power is usually much higher during the day than it is at night, and utility companies often sell power at night at much lower prices to encourage consumers to use the available power generation capacity and to avoid building new expensive power plants that will be used only a short time during peak periods. Utilities are also willing to purchase power produced during the day from private parties at a high price. Suppose a utility company is selling electric power for $0.03/kWh at night and is willing to pay $0.08/kWh for power produced during the day. To take advantage of this opportunity, an entrepreneur is considering building a large reservoir 50 m above the lake level, pumping water from the lake to the reservoir at night using cheap power, and letting the water flow from the reservoir back to the lake during the day, producing power as the pump–motor operates as a turbine– generator during reverse flow. Preliminary analysis shows that a water flow rate of 2 m^3/s can be used in either direction, and the irreversible head loss of the piping system is 4 m. The combined pump–motor and turbine–generator efficiencies are expected to be 75 percent each. Disregarding the frictional losses in piping and assuming the system operates for 10 h each in the pump and turbine modes during a typical day, determine the potential revenue this pump–turbine system can generate per year.
Implicit in Turkle's argument is the idea that we choose technologies that reflect our personalities and our cognitive styles. Discuss how you have used technology in your life to reflect your style. Do any of your technologies reflect your personali..
A certain psychologist was looking for the cause of failure among college students. She took a group of former students who had flunked out and a group of students who had received good grades.
Identify one of the early fire prevention control methods and how we see it used extensively in today’s world. In your response give at least two examples.
Based on your understanding of an inherent risk being one that is “obvious and necessary,” list a number of activities or sports and then identify some inherent risks for each activity or sport. Do you think that inherent risks may change as technolo..
A private medical clinic wants to estimate the true mean annual income of its patients. The clinic needs to be within $100 of the true mean.
Write down a short paragraph refreshing my memory regarding the organization or subdivision of that organization that you are studying in your SLP.
What can be done to prevent violence in the workplace? Do you think companies do enough to protect their employee.
Because of its versatility, what assumptions must be made when diagnosing and troubleshooting Excel-based problems?
According to dependency theory, poor countries have become dependent on rich nations because:
When setting a Mission Statement and defining success for both personal and professional lives, "My/The definition of success is". Pls answer in 120 words or less and cite url or references if used.
What reforms did the Society for the Promotion of Temperance promote?
Discuss each point on Kinsey's continuum of sexual orientation. Discuss the values and limitations of this paradigm
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd