Environmental Engineering Reference
In-Depth Information
Food 100 gr
Fuel 100 gr
kJ
kcal
kWh
Coal (antracite) 2,700 645
0.750
Charcoal
3,000 717
0.833
Butter
3,138 750
0.872
Natural gas
3,300 789
0.917
Biodiesel
3,330 796
0.925
Diesel
3,640 870
1.011
Olive oil
3,772 901
1.048
Crude oil
4,200 1,004 1.167
Petrol
4,400 1,052 1.222
Hydrogen
11,400 2,725 3.167
Table 3.2.
Daily energy requirements of infants and adults
Energy requirements
Years
kg
Lifestyle
kJ/day
kcal/day
Infant
1
12 active
3,243
775
Child
5-6
30 active
6,139
1,467
Woman
30-60 55 sedentary 7,800
1,850
Woman
30-60 55 active
11,900 2,850
Man
30-60 70 sedentary 10,200 2,450
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