Wind & Solar Energy ESET 222: Solar Position Calculation

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@EncouragingSimile

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Questions and Answers

What is the hour angle?

The number of degrees between the local meridian and the sun's meridian (correct)

The azimuth angle of the sun

The number of degrees between the sun and the moon

The altitude angle of the sun

When does the hour angle have positive values?

In the morning before the sun crosses the local meridian (correct)

At midnight

At solar noon

In the afternoon

What does a positive azimuth angle indicate?

Sun at solar noon

Sun in the west in the afternoon

Sun in the east in the morning (correct)

Sun at midnight

At 2:00 P.M. solar time, what would the hour angle be?

-30 degrees Signup and view all the answers

Which angle helps us remember that it is specifically related to the sun's position?

Azimuth angle Signup and view all the answers

How is the azimuth angle conventionally defined in terms of sun's position?

Positive in the morning with sun in the east Signup and view all the answers

What describes the location of the sun at any time of day?

Hour angle and azimuth angle Signup and view all the answers

What factors determine the azimuth and altitude angles of the sun?

Latitude, time of day, and solar declination Signup and view all the answers

In the provided example, what was the solar declination on the summer solstice?

23.45° Signup and view all the answers

How many hours after solar noon was it at 3:00 P.M. in the provided example?

3 hours Signup and view all the answers

What is the formula used to calculate the altitude angle in the provided example?

$ sin β = cosL cosδ cosH + sinL sin δ $ Signup and view all the answers

What is the calculated altitude angle for the sun in the provided example?

47.73° Signup and view all the answers

How is the azimuth angle calculated in the provided example?

$ φS = sin^{-1}(-0.9644) $ Signup and view all the answers

What does a negative azimuth angle indicate in relation to south?

$75°$ west of south Signup and view all the answers

Wind & Solar Energy ESET 222: Solar Position Calculation

Podcast

Questions and Answers

What is the hour angle?

When does the hour angle have positive values?

What does a positive azimuth angle indicate?

At 2:00 P.M. solar time, what would the hour angle be?

Which angle helps us remember that it is specifically related to the sun's position?

How is the azimuth angle conventionally defined in terms of sun's position?

What describes the location of the sun at any time of day?

What factors determine the azimuth and altitude angles of the sun?

In the provided example, what was the solar declination on the summer solstice?

How many hours after solar noon was it at 3:00 P.M. in the provided example?

What is the formula used to calculate the altitude angle in the provided example?

What is the calculated altitude angle for the sun in the provided example?

How is the azimuth angle calculated in the provided example?

What does a negative azimuth angle indicate in relation to south?

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Wind &amp; Solar Energy ESET 222: Solar Position Calculation

Podcast

Questions and Answers

What is the hour angle?

When does the hour angle have positive values?

What does a positive azimuth angle indicate?

At 2:00 P.M. solar time, what would the hour angle be?

Which angle helps us remember that it is specifically related to the sun's position?

How is the azimuth angle conventionally defined in terms of sun's position?

What describes the location of the sun at any time of day?

What factors determine the azimuth and altitude angles of the sun?

In the provided example, what was the solar declination on the summer solstice?

How many hours after solar noon was it at 3:00 P.M. in the provided example?

What is the formula used to calculate the altitude angle in the provided example?

What is the calculated altitude angle for the sun in the provided example?

How is the azimuth angle calculated in the provided example?

What does a negative azimuth angle indicate in relation to south?

More Like This

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Wind & Solar Energy ESET 222: Solar Position Calculation

Wind & Solar Energy ESET 222 Quiz