The following problem deals with the calculation of the effective temperature of the Earth.The effective temperature of a planet is the temperature it would have if it acted like a blackbody, absorbing all the incoming radiation received at its surface and reradiating it all back tospace. (a) Calculate the power radiated by the Sun if its surface temperature is about 5800 K.Assume that the emissivity of the Sun as well as that of Earth is equal to 1.0.(b) Assuming that the Sun emits as a point source, find the intensity of the solar radiationreaching Earth.(c) Taking into consideration the average reflectivity of earth which is 0.35, calculate theaverage radiation (watts) the Earth’s surface absorbs from the Sun. A steady state isreached when the Earth is absorbing and radiating energy at the same rate. From the lastequation you can find the effective temperature (in oC) of the Earth, without taking intoaccount the effect of the atmosphere.Astronomical data:Earth’s radius: 6300 kmSun’s radius: 7.0 x105kmMean distance between Earth and Sun: 150 x106km* Remember that the radiation power corresponding to the blackbody emission is given bythe following expression where T is measured in Kelvin.
fncjrnu5491 Solar, Wind and Biomass Energy
Learning Goal: I’m working on a environmental engineering exercise and need an explanation and answer to help me learn.
How our paper writing service works
It's very simple!
-
Fill out the order form
Complete the order form by providing as much information as possible, and then click the submit button.
-
Choose writer
Select your preferred writer for the project, or let us assign the best writer for you.
-
Add funds
Allocate funds to your wallet. You can release these funds to the writer incrementally, after each section is completed and meets your expected quality.
-
Ready
Download the finished work. Review the paper and request free edits if needed. Optionally, rate the writer and leave a review.