Answered step by step

Verified Expert Solution

Link Copied!

Question

1 Approved Answer

Posted on Jun 30, 2020

6. A windmill with a rotor diameter of 50 m converts the wind energy into electrical energy with an efficiency of 25%. The cut-in and

6. A windmill with a rotor diameter of 50 m converts the wind energy into electrical energy with an efficiency of 25%. 
The cut-in and cut-out speed are 10 km / h and 90 km / h, respectively.

What is the nominal power?

Step by Step Solution

★★★★★

3.36 Rating (162 Votes )

There are 3 Steps involved in it

Step: 1

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

Step: 3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Thermodynamics An Engineering Approach

Authors: Yunus A. Cengel, Michael A. Boles

8th edition

73398179, 978-0073398174

More Books

Students also viewed these Physics questions

Question

★★★★★

A wind turbine with a blade diameter of 50 m is to be installed in a location where average wind velocity is 7.5 m/s. The average temperature and pressure of ambient air in this location are 23oC and...

Answered: 1 week ago

Question

★★★★★

A windmill with rotor diameter of 30 m takes 40% of the kinetic energy out as shaft work on a day with 20oC and wind speed of 30 km/h. What power is produced?

Answered: 1 week ago

Question

★★★★★

A windmill with rotor diameter of 30 m takes 40% of the kinetic energy out as shaft work on a day with 20oC and wind speed of 30 km/h. What power is produced?

Answered: 1 week ago

Question

★★★★★

Lets assume the client in the fact pattern in this weeks discussion board did not want to purchase the mothers house (in other words, forget about only those facts) and now has been appointed as the...

Answered: 1 week ago

Question

★★★★★

When pyrrole is added to a dilute solution of D2SO4 in D2O, in 2-deuteriopyrrole is formed. Propose a mechanism to account for the formation of this compound.

Answered: 1 week ago

Question

★★★★★

18. You are managing a software project, when one of your stakeholders needs to make a change that will affect the budget. What defines the processes that you must follow in order to implement the...

Answered: 1 week ago

Question

★★★★★

What are the primary differences between traditional cognitive therapy and the more recently developed metacognitive therapy?

Answered: 1 week ago

Question

★★★★★

(a) Can the reaction p + 7/3Li 4/2He + occur if the incident proton has kinetic energy = 2500keV? (b) If so, what is the total kinetic energy of the products?

Answered: 1 week ago

Question

★★★★★

R Programming Learning vector quantisation (LVQ) is a simple machine learning technique for classification. We will only look at binary classification (i.e. we only want to classify objects in two...

Answered: 1 week ago

Question

★★★★★

Julio buys a koi fishpond (and fish to put in it) for his wife on their anniversary. He pays $8000 for the pond and fish with $2000 down. The dealer charges add-on interest of 3.5% per year, and...

Answered: 1 week ago

Question

★★★★★

Los activos de un gobierno incluyen un inventario de $4 millones, caminos construidos por $50 millones con una depreciacin acumulada de $20 millones y equipo adquirido por $10 millones con una...

Answered: 1 week ago

Question

★★★★★

3. The Roz trust received taxable income of $20,000 and $10,000 of tax-exempt interest. The trustee paid fiduciary fees of $6,000 and a charitable contribution, as authorized by the trust agreement,...

Answered: 1 week ago

Question

★★★★★

5) If liabilities increase $120,000 during a given period and shareholders' equity decreases $25,000 during the same period, assets must: A) decrease $145,000 B) increase $145,000 C) increase $95,000...

Answered: 1 week ago

Question

★★★★★

Two important profitability measures that investors use in assessing efficiency and effectiveness of a merchandiser's operations are earnings after retail numbers (EARN) and net income dividends and...

Answered: 1 week ago

Question

★★★★★

On June 1, 2025, Ivanhoe Service Co. was started with an initial investment in the company of $19,250 cash. Here are the assets, liabilities, and common stock of the company at June 30, 2025, and the...

Answered: 1 week ago

Question

★★★★★

Konig Enterprises, Limited, owns and operates three restaurants in Vancouver, B.C. The company allocates its fixed administrative expenses to the three restaurants on the basis of sales dollars. Last...

Answered: 1 week ago

Question

★★★★★

Current Attempt in Progress Alliance Atlantis Communications Inc. changed its accounting policy to amortize broadcast rights over the contracted exhibition period, which is based on the estimated...

Answered: 1 week ago

Question

★★★★★

Information graphics, also called infographics, are wildly popular, especially in online environments. Why do you think infographics continue to receive so much attention? How could infographics be...

Answered: 1 week ago

Question

★★★★★

Consider a two-stage cascade refrigeration system operating between the pressure limits of 1.2 MPa and 200 kPa with refrigerant-134a as the working fluid. The refrigerant leaves the condenser as a...

Answered: 1 week ago

Question

★★★★★

The pressure in a water line is 1500 kPa. What is the line pressure in (a) lb/ft2 units and (b) lbf/in2 (psi) units?

Answered: 1 week ago

Question

★★★★★

What is the difference between a refrigerator and a heat pump?

Answered: 1 week ago

Question

★★★★★

Sales revenue (Y) and advertising expenditure (X) data for a large retailer for the period 1988-1993 are given in the following table. a. Does the plot of Y versus X suggest that a linear...

Answered: 1 week ago

Question

★★★★★

The BRFSS linear regression model of Section 5.12 was fit accounting for the sampling design and weights (using PROC SURVEYREG), with relevant output shown here. Answer the same set of questions...

Answered: 1 week ago

Question

★★★★★

The data shown in the following table were obtained from the 1990 Census. Included is information on 26 randomly selected Metropolitan Statistical Areas (MSAs). Of interest are factors that...

Answered: 1 week ago

Previous Question Next Question