Biofuels, Solar and Wind as Renewable Energy Systems Benefits and Risks Episode 2 Part 1 pot

... 50 chapters in books and conference proceedings. 22 T.W. Patzek 20 00 20 20 20 40 20 60 20 80 21 00 21 20 21 40 21 60 21 80 22 00 0 20 40 60 80 10 0 12 0 14 0 16 0 18 0 Petroleum, EJ/Year 27 0 billion gallons ... the Earth will not give us the extra 2 Can the Earth Deliver the Biomass-for-Fuel we Demand 21 19 80 19 85 19 90 19 95 20 00 20 05 20 10 20 15 20...

Ngày tải lên: 27/06/2014, 08:20

... 12 Agriculture 2 3 14 3.33 10 +3 6 .29 10 +2 1 out of 1 Biofuel Production 3 1 13 7.84 × 10 +2 1. 06 10 +2 2 out of 2 32 1 1. 12 10 +2 nv Net Greenhouse Gas Emission: 48 4 .23 10 +3 6.38 10 +2 4 out of 15 a values ... Wet milling: E Ce = E DCe +E WCe 10 0 1 8 NEB Ce = EG Ce −EL IC − EL C − EL Ce = 2. 8 ±3.8 × 10 +6 Btu/Acre 19 70 21 827 3 21 4...

Ngày tải lên: 06/08/2014, 04:20

... 88, 90 10 4, 15 4 15 6, 16 1, 16 3 16 7, 17 3, 18 4, 19 4 19 5, 19 6 20 9, 21 6, 21 8, 22 5, 22 7, 23 1, 23 2, 23 5 23 8, 24 0 24 5, 25 2, 25 4 25 6, 27 4 27 5, 28 0, 28 9, 303, 3 12 315 , 3 21 – 322 , 323 , 330, 3 32, 3 41, 3 51, 366, ... 410 , 426 , 448–4 51 CO 2 balances, 22 4 22 5 CO 2 mitigation, 22 3 22 4 Coal, 1 4, 12 , 19 , 24 , 27 , 29 , 32, 35, 37...

Ngày tải lên: 06/08/2014, 04:20

... Practice and Proposed Methodology 23 1 Tom Gangwer ix Biofuels, Solar and Wind as Renewable Energy Systems 2 D. Pimentel Table 1. 1 Fossil and solar energy use in the U.S. and world (quads = 10 15 BTU) ... (USCB 20 07) Fuel U.S. World Petroleum 40 .1 168 Natural Gas 23 .0 10 3 Coal 22 .3 11 5 Nuclear 8 .22 8 Biomass 3.030 Hydroelectric power 3. 427 Ge...

Ngày tải lên: 06/08/2014, 04:20

... petroleum-derived fuels will not last for very long. 22 T.W. Patzek 20 00 20 20 20 40 20 60 20 80 21 00 21 20 21 40 21 60 21 80 22 00 0 20 40 60 80 10 0 12 0 14 0 16 0 18 0 Petroleum, EJ/Year 27 0 billion gallons of ethanol ... the remaining 21 billion gallons of ethanol come from each year? Sources: DOE EIA, Renewable Fuels Association (RFA) 18 80 19 00 1 920 19 4...

Ngày tải lên: 06/08/2014, 04:20

... classes Class a Area a 20 03 US NPP b HHV c 10 6 ha 10 6 tha 1 yr 1 EJ yr 1 1 Cropland +Mosaic 21 9 14 84.8 25 .2 2 Pastures 12 3 1 42. 3 2. 4 3 Remote vegetation d 16 0 724 .1 12 . 3 4Forest e 25 2 20 30.0 ... Fig. 2. 18 . Table 2. 2 Version 4.8 NPP/GPP global sums (posted: 01 Feb 20 07) a Year b GPP (Pg C/yr c )NPP d (Pg C/yr) 20 00 11 1 53 20 01 111 53 20 02...

Ngày tải lên: 06/08/2014, 04:20

... 5.0 6.0 7.0 8.0 19 81 19 82 19 83 19 84 19 85 19 86 19 87 19 88 19 89 19 90 19 91 19 92 19 93 19 94 19 95 19 96 19 97 19 98 19 99 20 00 20 01 20 02 20 03 20 04 20 05 20 06 20 07e Billions of ... 3.7 Other 18 5 1. 6 19 0 .20 1. 4 19 6. 52 1. 4 Seed 19 .30 0 .2 20 .17 0 .2 23.33 0 .2 Exports 1, 9 41. 35 16 .7 2, 14 7.34 16 .2 1, 885. 72...

Ngày tải lên: 06/08/2014, 04:20

... of fuel 1 1.45 1. 75 1. 40 1. 70 1. 45 1. 75 1. 40 1. 70 Subsidy per MMBtu 12 . 55 15 .15 12 . 45 15 .05 12 . 70 15 .30 12 . 15 14 .75 Subsidy per GJ 11 .90 14 .35 11 .80 14 .25 12 . 05 14 .50 11 .50 13 .95 Subsidy as share ... 77% Displacement factor – cellulosic best 3 11 4% 11 4% 11 4% 11 4% Number of tonnes of carbon offsets subsidies could purchase European Climate Exchang...

Ngày tải lên: 06/08/2014, 04:20

... 1 926 , Tryon 1 927 , Cottrell 19 55, Boulding 19 66, Georgescu Roegan 19 71, Odum 19 71, Daly 19 77, Herendeen and Bullard 19 75, Hannon 19 81, Kummel 19 82, Kummel 19 89, Jorgenson 19 84 and 19 88, Hall 19 91, ... Environmental Science and Forestry, Syracuse, New York 1 3 21 0 D. Pimentel (ed.), Biofuels, Solar and Wind as Renewable Energy Systems,...

Ngày tải lên: 06/08/2014, 04:20

... × 0.34 = 11 .2% of fossil fuels. And since fossil fuels supply 86% of all energy used in the U.S., this 11 .2% is 0 .1 12 % ×0.86 = 10 % of total energy used. 12 . Dr. Smallwood and K. Thelander reported ... Engineering 15 8, May 20 05, pp. 66– 72 Trainer, F. E. (19 95). Can renewable energy sources sustain affluent society? Energy Policy, Vol 23 No 12 pp. 10 09 1 02...

Ngày tải lên: 06/08/2014, 04:20