CH217 - Homework

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9.61 E7 J/yr * 1717 students = 1.65 E8 kJ/yr

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*Reuben Biel, Television*
| Room No | Brand | Volt (V) | Current (A) | Wattage (W) | Time (hrs_used/day) | Occupants | Gender | kJ Used per Room per Day | kJ Used per Individual per Day |
| 1 | Sylvania | 120 | 0.44 | 53 | 0.57 | 3 | M | 109. | 36.3 |
| 2 | Emerson | 120 | 0.5 | 60 | 1 | 2 | F | 216 | 108 |
| 3 | --
- | 0 | 0 | 0 | 0 | 2 | M | 0 | 0 |
| 4 | Orion | 120 | 0.92 | 110 | 1 | 2 | F | 396 | 198 |
| 5 | Olevin | 120 | 1 | 100 | 1.5 | 3 | M | 540 | 180 |
| 6 | --
- | 0 | 0 | 0 | 0 | 2 | F | 0 | 0 |
| 7 | --
- | 0 | 0 | 0 | 0 | 3 | M | 0 | 0 |
| 8 | Emerson | 120 | 0.46 | 55 | 1 | 2 | F | 198 | 99 |
| 9 | Magnavox | 120 | 2 | 240 | 0.57 | 1 | M | 494 | 494 |
| 10 | Magnavox | 120 | 0.33 | 40 | 5 | 1 | M | 720 | 720 |
| 11 | RCA | 120 | 0.46 | 55 | 1.5 | 1 | F | 297 | 297 |
| 12 | LG | 120 | 1.25 | 150 | 6 | 1 | M | 3240 | 3240 |
| 13 | Insignia | 120 | 0.58 | 70 | 0.5 | 0.5 | F | 126 | --
- |
| 13A | LG | 120 | 1.25 | 150 | 2 | 0.5 | F | 1080 | --
- |
| 13 Total | | 0 | 0 | 0 | 0 | 1 | F | 0 | 1206 |
| 14 | --
- | 0 | 0 | 0 | 0 | 1 | F | 0 | 0 |
Assuming that Televisions only draw energy while being used (false assumption so is an underestimate of actual usage):
Average Usage per Female per Day (including those without TVs): 273 kJ/day
Average Usage per Male per Day (including those without TVs): 667 kJ/day
If there are approx. 960 females (54.8%) and 790 males on campus (Total 1750 students), then:
Total Female Usage per Year = 273 kJ/female-day*365 days/yr*960 females = 9.55E7kJ/yr
Total Male Usage per Year = 667 kJ/female-day*365 days/yr*790 females = 1.92E8kJ/yr
Total Energy Usage per Year = 2.29E9kJ/yr + 4.62E9kJ/yr = *2.8E8kJ/yr*