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| Gasification Archive for April 2002 |
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| 36 messages, last added Tue Nov 26 17:18:17 2002 |
[Date Index][Thread Index]
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I opened
this, printed it out, and found no virus. The attachment contains good info
about biomass energy, US geography, and should be useful to thinkers. Like the
author, I am doubtful that we could ever get 40% of present energy from biomass.
However with large plantings we could get more than 10% and that could be
crucial to the survival of our children. With diverse and fruit crops, nature
would be reinforced. Biomass stores carbon, makes food, makes liquid
fuels, and makes energy when the sun doesn't shine and the wind doesn't
blow.
Kermit Schlansker
Let's see if this HTM
version of the spreadsheet attaches OK
--
KD
42n20,72w39
Your message didn't show up on the list?
Complaints or compliments?
Drop me (Tom Robertson) a note at t1r@bellatlantic.net
Your use of
Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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| Biomass Energy Potential Calculator: |
USA |
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Fantasy |
No Meat* |
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Percent of |
Percent of |
| Category |
Percent |
Sq Km |
Hectares |
DryT/Ha/Yr |
DryT/Yr |
MMBtu/DryT |
QuadBtu/Yr |
Current Use |
Current Use |
| Arable |
19% |
1,740,202 |
174,020,240 |
8 |
1,392,161,920 |
14 |
19 |
20% |
14% |
| Pasture |
25% |
2,289,740 |
228,974,000 |
4 |
915,896,000 |
14 |
13 |
13% |
13% |
| Forest |
30% |
2,747,688 |
274,768,800 |
2 |
549,537,600 |
14 |
8 |
8% |
0% |
| Other |
26% |
2,381,330 |
238,132,960 |
0 |
0 |
14 |
0 |
0% |
0% |
| Total |
100% |
9,158,960 |
915,896,000 |
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2,857,595,520 |
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40 |
40% |
27% |
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| References: |
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| United States of America - Energy |
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| http://www.eia.doe.gov/emeu/cabs/usa.html |
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| Total Energy Consumption (2000E): |
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| 98.8 |
quadrillion Btu (25% of world total energy
consumption) |
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| Current Shares
of U.S. Energy Consumption |
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| http://starfire.ne.uiuc.edu/ne201/course/topics/resource_usage/current_shares.html |
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| 1994 U.S.
Energy Use By Source |
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| Source
Consumption in Quads |
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| Oil |
31.00 |
35% |
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| Natural Gas |
24.00 |
27% |
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| Coal |
20.00 |
23% |
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| Nuclear |
7.00 |
8% |
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| Hydroelectric |
2.50 |
3% |
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| Wood Waste |
1.50 |
2% |
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| Biofuels |
1.30 |
1% |
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| Geothermal |
0.20 |
0% |
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| Solar |
0.07 |
0% |
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| Wind |
0.04 |
0% |
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| Total |
88.50 |
100% |
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| United States -
Geography |
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| http://www.cia.gov/cia/publications/factbook/geos/us.html |
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| Area: |
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| total: 9,629,091 sq km |
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| land: 9,158,960 sq km |
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| water:
470,131 sq km |
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| Land
use: |
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| arable
land: 19% |
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| permanent
crops: 0% |
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| permanent
pastures: 25% |
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| forests and
woodland: 30% |
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| other: 26% (1993 est.) |
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| [1 sq km = 100
hectares] |
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| Popular
Poplars: Trees for many purposes |
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| http://bioenergy.ornl.gov/misc/poplars.html |
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| Hybrid
poplars, when grown under short-rotation silviculture, can produce between 4
and 10 dry tons of wood per acre per year |
| (8-22 metric
tonnes per hectare per year)...This compares to yields of less than 1
ton/ac/yr for native forests and 2.5 ton/ac/yr |
| for managed
pine plantations. |
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| Bioenergy
Conversion Factors |
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| http://bioenergy.ornl.gov/papers/misc/energy_conv.html |
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| 1.0 metric
tonne (tonne) = 1000 kilograms = 2205 pounds |
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| Energy content
of wood fuel (air dry, 20% moisture) = about...6,400 Btu/lb |
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| Realities For
The 90s |
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| Environmental
and Nutritional Facts drawn from Diet for a New America by John Robbins and
other sources |
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| http://home.earthlink.net/~tilleyrw/realities_90s.html |
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| Amount
of soy grown in United States consumed by livestock: 90% (2) |
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| Amount of corn
grow in United States consumed by livestock: 80% (3) |
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| Amount of total U.S. grain production consumed by
livestock: 70% (5) |
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| * "No
Meat" scenario assumes 70% of crop land can be converted from production
for livestock to biomass production, |
| all pasture
land can be converted to biomass production, and all forest land stays in
forestry (timber/wood/pulp) |
| production. This is probably a fantasy too. But it still might be a good idea to buy
soy burger stock while it's cheap. |
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