Post on 04-Jun-2018
CEE 370 L#10 1
CEE 370 Environmental Engineering Principles
Lecture #10
Energy Balances Reading: Mihelcic & Zimmerman, Section 4.2 & 4.3
Davis & Masten, Chapter 4
Updated: 30 September 2015 Print version
Conservation of Energy
CEE 370 L#10 2
Energy Balances
CEE 370 L#10 3
Common Forms of Energy
CEE 370 L#10 4
CEE 370 L#10 5
GHG Effect
CEE 370 L#10 6
• What are greenhouse gases? • What are affects of GHGs? • Are GHGs bad?
Solar Radiation & Climate Change
CEE 370 L#10 7
Global Average CO2 Concentration Trend
CEE 370 L#10 8
Why?
Climate Change Scenarios
CEE 370 L#10 9
CEE 370 L#10 10
Rural vs. Urban Temperatures
CEE 370 L#10 11
Heat Distribution in Different Areas
CEE 370 L#10 12
Why?
Urban Shallow Layer Energy Balance
CEE 370 L#10 13
CEE 370 L#10 14
Comparison of the American Home
CEE 370 L#10 15
Energy Use for Small vs. Large Homes
CEE 370 L#10 16
Sustainable Design for Temperature Regulation
CEE 370 L#10 17
a) Thermal walls for heat transfer and dissipation
b) Ventilation systems for natural heating
c) Ventilation systems for natural cooling
d) Overhangs to regulate effects from sun