Please answer question 6. Follow through. You can also use the example down there. Intensity of Solar Radiation is a relative measurement. We know that a Sub Solar Point (SSP) is a latitude where the Sun’s rays are directly vertical (ANS=900) over a defined Latitude, therefore, receiving the most intensity heating on the Earth’s surface. A SSP will take in 100% of the Sun’s rays hitting the Earth’s surface and we will measure that in Watts/Meter2 at the end of this lab. As you move away from a SSP, the angle in which the Sun’s rays hit the Earth (ANS) will decrease. As the ANS decreases, so will the percentage of the Sun’s rays received at the Earth’s surface. We will explain this at the end of the lab. In order to calculate the percentage of the Sun’s rays received, relative to a SSP, we use the equation: Solar Intensity (SI) = Sin (ANS) Make sure your calculator is in DEGREE mode-not Radian! For example: ANS=900 we know that is a SSP SI= SIN (90) SI=1 SI=100% as expected for a SSP. But what if the ANS=300? SI=Sin (30) SI= .50 SI= 50% With an ANS of 300, the Latitude would only receive 50% of the Sun’s rays RELATIVE to a SSP. 6. Using the ANS from questions 2 and 3 above, calculate the intensity of solar radiation (SI) for the following? May 5th _____________ January 6th_______________ March 21st _____________ Your Birthday ____________ 75oN _________________ 80oS ________________ 25oN _________________ 52oS ________________ All of your equations should have a structured way to organize your data. This is how your instructor does it: Date: Latitude of the SSP: Location: Zenith Angle ANS (SE): Solar Intensity (SI) Let’s complete an example: Date: 6/21 Latitude of the SSP: 23.50 N Location: 300 N Zenith Angle: 6.50 ANS (SE): 83.50 Solar Intensity (SI): 99.36% Work: Both the SSP and location are in the same Hemisphere, so: Z= 300 - 23.50 = 6.5 ANS (SE) = 900 - 6.50 = 83.50 Solar Intensity (SI) = Sin (83.5) SI = 99.36 %
Please answer question 6. Follow through. You can also use the example down there.
Intensity of Solar Radiation is a relative measurement. We know that a Sub Solar Point (SSP) is a latitude where the Sun’s rays are directly vertical (ANS=900) over a defined Latitude, therefore, receiving the most intensity heating on the Earth’s surface. A SSP will take in 100% of the Sun’s rays hitting the Earth’s surface and we will measure that in Watts/Meter2 at the end of this lab.
As you move away from a SSP, the angle in which the Sun’s rays hit the Earth (ANS) will decrease. As the ANS decreases, so will the percentage of the Sun’s rays received at the Earth’s surface. We will explain this at the end of the lab.
In order to calculate the percentage of the Sun’s rays received, relative to a SSP, we use the equation:
Solar Intensity (SI) = Sin (ANS) Make sure your calculator is in DEGREE mode-not Radian!
For example:
ANS=900 we know that is a SSP
SI= SIN (90)
SI=1
SI=100% as expected for a SSP.
But what if the ANS=300?
SI=Sin (30)
SI= .50
SI= 50%
With an ANS of 300, the Latitude would only receive 50% of the Sun’s rays RELATIVE to a SSP.
6. Using the ANS from questions 2 and 3 above, calculate the intensity of solar radiation (SI) for the following?
May 5th _____________ January 6th_______________
March 21st _____________ Your Birthday ____________
75oN _________________ 80oS ________________
25oN _________________ 52oS ________________
All of your equations should have a structured way to organize your data. This is how your instructor does it:
Date:
Latitude of the SSP:
Location:
Zenith Angle
ANS (SE):
Solar Intensity (SI)
Let’s complete an example:
Date: 6/21
Latitude of the SSP: 23.50 N
Location: 300 N
Zenith Angle: 6.50
ANS (SE): 83.50
Solar Intensity (SI): 99.36%
Work:
Both the SSP and location are in the same Hemisphere, so:
Z= 300 - 23.50 = 6.5
ANS (SE) = 900 - 6.50 = 83.50
Solar Intensity (SI) = Sin (83.5)
SI = 99.36 %
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