GEOG 3EE3 Lecture Notes - Greywater, Facing Windows

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Published on 18 Apr 2013
McMaster University
Lecture 7: Solar Energy
Issues with Solar energy:
1. Episodic
2. Efficiency tends to be low
3. Cost
4. Aesthetics
Government incentives to add solar heating to industry and commercial buildings
21% of solar rad. Hits earth directly
29% scattered
Lower angles winter
Higher angles summer
- Degree of latitude is the proper angle to angle at
Increase efficiency:
- Reduce Ts temp
- On-demand system
- Insulate piping
- Reclaim heat from grey water
- Only turn heater on when needed
Direct Gain: south facing windows admit sunlight and thermal storage materials absorb radiation
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