انظمة الطاقة المتجددة الشعبة 1 نظري
Incomplete Homework (20 marks)
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Question 1: [10 marks]
In the course page on your Moodle account, there is a documentary of the largest dam in the world (i.e., the Three Gorges dam). Watch the video and answer the following questions:
1. What is the name of this dam? and where is it? [1]
2. How long is the dam? Its dimensions? [1]
3. What is the capacity of this dam? [1]
4. What is the average output power of this dam? [1]
5. How many years it will take to build the dam? [1]
6. How many tons of concrete will building of the dam consume? Compared to the globe? [1]
7. How many generators does the dam contain? [1]
8. How many people will this dam supply with electricity? [1]
9. What is the ships’ lift (elevator)? Dimensions? [1]
10. How did the
engineers avoid the gathered of seeds and sands? [1]
Question 2: [10 marks]
We want to install a solar energy collector at the rooftop of the place where you were born. Answer the following questions at your birthday showing your detailed calculations. In case you were born at night (e.g., 10 pm), make a shift of 12 hours and consider you were born at 10 am of the same day. It is preferred to type your answer in the text box of your homework, otherwise, you can submit a clear PDF file only. [10 marks]
1. State the place and date of your birthday including the time of the birth.
2. Calculate the day of the year (d) and the equation of time (EOT). [1]
3. Find the corrected standard time (ts). [1.5]
4. Calculate the solar hour angle (Hs). [1.5]
5. Determine the declination angle (δ). [1.5]
6. Compute the elevation angle (α). [1.5]
7. At what angle (as) and direction should we orient the collector? [2]
8. To get the maximum power from the collector, at what angle should we tilt it? [1]
The end