ISU GEO 211 - Estimating energy needs (2 pages)

Previewing page 1 of 2 page document View the full content.
View Full Document

Estimating energy needs



Previewing page 1 of actual document.

View the full content.
View Full Document
View Full Document

Estimating energy needs

210 views

Continues the lecture on Air Temperature Data


Lecture number:
10
Pages:
2
Type:
Lecture Note
School:
Illinois State University
Course:
Geo 211 - Earth's Dynamic Weather
Edition:
1
Documents in this Packet

Unformatted text preview:

GEO 211 1st Edition Lecture 10 Outline of Last Lecture I Solar Particles and Aurora II Chapter 3 Earth and Sun Relationships A Why do we have seasons B Physical factors causing seasonal variations 1 Earth s revolution 2 Earth s rotation 3 Earth s angle of inclination 4 Earth s axis orientation 5 Earth s sphericity C Earth s revolution a Perihelon b Taphelion D Earth s rotation E Earth s angle of inclination F Earth s axis orientation G Earth s sphericity a Polaris H Solstice Conditions Outline of Current Lecture II Air and Temperature Data continued A Estimating energy needs a Heating degree days b Cooling degree days c Growing degree days Current Lecture II Air and Temperature Data continued A Estimating energy needs a Heating degree days used to evaluate energy demands and consumption These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute costs Calculated in winter months Calculated in winter months Assume bas temperature is 65 F 1 heating degree day equals to each degree the average daily temperature is below 65 F Subtracting daily mean from the base value of 65 F Ex daily mean of 40 F has 25 heating degree days 65 40 25 b Cooling degree days calculated in summer 1 cooling degree day is 1 above the base value Ex a day with daily mean at 85 F represents 20 CDDs 85 65 20 c Growing degree days Used to determine approximate date when crops are ready for harvest Base value temperature vary from crop to crop Ex sweet corn 50 F peas 40 F If the daily mean is 75 F GDD for sweet corn is 25 peas it is 35



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Estimating energy needs and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Estimating energy needs and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?