
I hope you boys know I'm just having a little fun at your expense. Nothing malicious intended. I can dish it as well as I can take it. Question is, can you

spankyham wrote:Cheech and chong in full flight.
I hope you boys know I'm just having a little fun at your expense. Nothing malicious intended. I can dish it as well as I can take it. Question is, can you
spankyham wrote: At the same time, the biofuel blend pumps just keep popping up everywhere and sales keep going up.
Biodiesel appeals to us because it can be made from plants grown locally and burns far cleaner then ordinary diesel fuel. It results in 67 percent less unburned hydrocarbons (helping to reduce smog and ozone), 48 percent less carbon monoxide and 47 percent less particulate matter, according to an analysis of heavy-duty engines by the Environmental Protection Agency. Only nitrogen oxides, or NOX, slightly increase. It can also be blended with regular diesel in any percentage from B2 (98 percent diesel, 2 percent biodiesel) to B100, which is pure biodiesel.
The great promise of biofuel is its potential to be 'carbon-neutral' with all the carbon dioxide emitted during use of the fuel being balanced by the absorption from the atmosphere during the fuel crop's growth. However, in practice the process of growing the crop requires the input of fossil fuels for fertilisers, harvesting, processing and fuel distribution.
Taking into account carbon dioxide and nitrous oxide emissions (associated with agriculture) for oil seed **** sourced biodiesel and sugar cane bioethanol, studies show that lifecycle greenhouse gas emissions can be reduced by around 60% and 90% respectively. This means a 5% biofuel blend would result in a carbon reduction of around 2.5% (biodiesel) and 4% (bioethanol). Much greater emission reductions are possible for biodiesels if waste oils are used, as the sources material would otherwise be thrown away.
Regarding regulated emissions, tests show that biodiesel particulate emissions are lower than from mineral diesel. Its low sulphur content also increases efficiency of exhaust control systems, reducing carbon monoxide and hydrocarbon emissions. For high percentage bioethanol fuels, tailpipe carbon monoxide, particulates and hydrocarbons are generally reduced – however, some unregulated emissions such as aldehydes are actually increased.
One of the problems with the fuel itself is the increase in NOx in biodiesel emissions. Often, in diesel fuel manufacturing, when you decrease the amount of particulate matter in the emissions, there is a corresponding increase in nitrogen oxides, which contribute to smog formation. Though some of this can be addressed by adjusting the engine itself, that's not always feasible. There are technologies being researched to reduce NOx amounts in biodiesel emissions.
Another problem is biodiesel's behavior as a solvent. Though this property is helpful, it's kind of a double-edged sword. Some older diesel vehicles (such as cars made before 1992) may experience clogging with higher concentrations of biodiesel. Because of its ability to loosen deposits built up in the engine (which may be there from old diesel fuel), biodiesel can cause the fuel filter to become jammed with the newly freed deposits. Biodiesel manufacturers suggest changing the fuel pump shortly after switching to high-concentration biodiesel blends. Components within these older fuel systems may also become degraded. In addition to deposits within the fuel system, biodiesel also breaks down rubber components. Some parts in the older systems, such as fuel lines and fuel pump seals, may become broken down due to their rubber or rubber-like composition. This is usually remedied by replacing such components. Though many manufacturers have included biodiesel in their warranties, potential for problems could still exist. For more information on biodiesel and vehicle warranties, check out The Biodiesel Standard.
Also, in some engines, there can be slight decrease in fuel economy and power. On average, there is about a 10 percent reduction in power. In other words, it takes about 1.1 gallons of biodiesel to equal 1 gallon of standard diesel.
The major drawbacks to biodiesel are connected to the bigger picture, namely the market and associated logistics. Of these, the most important is cost. According to the EPA, pure biodiesel (B100) can cost anywhere from $1.95 to $3.00 per gallon, while B20 blends average about 30 to 40 cents more per gallon than standard diesel. This all depends on variables such as the feedstock used and market conditions.
What's Burning? wrote:I think I've shared this before... but there really is no argument other than big oil wanting things to remain status quo.
The area in the red box is about 25,000 square miles, slightly larger than the state of West Virginia. The small red square shows the space required to meet German demand for energy.