A biodiesel car is all the rage in today's environment conscious society, thanks to the awareness being raised by various advocates coming from all walks of life. Practically any automobile that runs on petro-diesel is an ideal candidate for biodiesel use.
Remember, cars that operate on regular diesel and those that use biodiesel function on the same principles. Ergo, a bio-car is pretty much like any other diesel-powered vehicle except for one teeny tiny detail, it is earth-friendly. Small difference, isn't it?
Biodiesel: The Scientific Approach
Science dictates that hydrocarbons play a crucial role in the production of fuel. And as mentioned in the preceding paragraph, a car with petrol-based fuel is similar to any other vehicle due to the manner of how their engines operate and that is the process of internal combustion.
Fuel compound like gasoline or diesel, when used as a fuel source, relies much on the process of combustion at varying temperatures. Since the dawn of cars, gasoline has been the favorite because of its ability ignite at fairly low temperatures. You only need a spark, that is it. Generally, a gasoline powered vehicle creates powerkick through the combo of vapor and oxygen, which is injected and explodes into the combustion chamber. Thus, making the piston turn the crankshaft that is distributed to the transmission and to the screeching tires.
Petro-Diesel Vs. Biodiesel
In an engine that runs on diesel, combustion is triggered by heat originating from compression. In here, the diesel fuel burns due to rapid compression. The downside is that diesel engines produce more nasty and noxious gases. One is carbon dioxide and the other is sulfur dioxide, not to mention nitrogen oxide and the list goes on.
By using biodiesel, you can take off the noxious gases from the equation and you have an environmentally-friendly vehicle.
The Repercussions of Petro-Diesel
Acid rain and green house effect, these two are rooted from the gases emitted by a car running on petro-diesel. Have you forgotten the high cost of gas nowadays? Talk about daylight robbery. The congestion in our highways may have subsided but our dependency on foreign oil providers may have just become a little tighter and a tad bit severe.
Biodiesel Equipment: Diminishing Harmful Gases
As for the bio-powered car, it functions like a petro-diesel vehicle devoid of the drawbacks. Some individuals opt to use B20 or mixture of twenty percent biodiesel to eighty percent regular diesel. This increases the mixture volatility while lessening the quantity of petrol used. And do not forget the absence of any fuel system modification.
Issues On Biodiesel
With the physical characteristics of biodiesel, it requires a higher temperature for it to burn and release power. That is why there are various ratios that can address this concern. A little tweaking in the engine plus a bit of help coming from heating coils then you are ready to drive.
Making your own alternative fuel may demand that you purchase biodiesel processors and kits. A regular kit can make a few gallons of biodiesel. But if you want to make more than a few gallons, you might need a biodiesel expansion kit.
Today, it is better to have biodiesel processors producing non-toxic fuel rather than visiting a gasoline station and filling you car with environmentally degrading liquid.
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Showing posts with label biodiesels car. Show all posts
Showing posts with label biodiesels car. Show all posts
Monday, 26 January 2009
process to biodiesels
On August 10 1893, an engine running on Biodiesel ran for the first time. This is why this day has been declared as 'International Biodiesel day'. This model was proposed by Rudolf Diesel. The transesterified oil that was used as source for the first run was Peanut oil. Biodiesel is a liquid produced form materials or biological origin unlike petrodiesel made from fossil fuel. Known previously as American Society for Testing and Materials, the ATSM has certified Biodiesel as confirming to the ATSM D 6751 standards.
The sources of biodiesel can be divided into: 1) Lipid accumulation in plants and algae 2) Hydrocarbons produced in algae or plants.
The lipid sources can be sunflower, linseed, Jatropha, safflower, peanut, rapeseed, olive seeds etc. These lipids have high energy value but are highly viscous. Hence they cannot be easily injected in the engine combustion chambers. This limitation is suggested to be solved by a process called pyrolysis or blending with solvents, emulsification with addition of water or fuels etc, but none proved fit. It was later decided that synthesizing esters of fatty acid was the solution to the viscosity problem. But production from edible oils commands a high price even in developed countries. Hence non-edible oils are the fresh sources for biodiesel. E.g.: Jatropha. These are now cultivated in large areas and researched for biodiesel production.
Certain algae accumulate large (about 60%) of Lipids in their cells when grown in a nutritionally suffucient medium. This property can be exploited to produce large amounts of lipids. Some freshwater algae and plants also store hydrocarbons (made of hydrogen and carbon atoms). E.g. in Botryococcus braunii, 75% of biomass is made of hydrocarbons. Other brown, red and green algae consist of varying amounts of Lipid content. USA, Austria, France, Czechoslovakia, Germany, Malaysia, Italy & other Asian countries have realized the benefits of Biodiesel. These countries are now competing in research on Biodiesel and its production.
The basic chemistry of biodiesel synthesis lies in transesterification process, where an ethyl ester reacts with methanol to form methyl ester and ethanol. Glycerol is a by - product developed in the process which ahs other industrial applications. Methyl esters are favoured for biodiesel production because of the cetane number.
Cetane number is a dimensionless value assigned to indicate the ignition quality of a liquid. This value is high, in case of long unbranched alkanes which are similar long chained compounds. High cetane numbers are related to compound that have low idle noise and easy starting even in cold weather. Though Biodiesel holds much promise for the future, its list of cons includes its properties as being a solvent, able to take up water from the atmosphere etc and sometimes providing reduced power in engines.
Many have patented the process of producing Biodiesel and one such patent is owned by DuPont and Colgate-Palmolove-Peet, and also by CLRI (India). Biodiesel is available nationwide. It can be purchased from the legalized biodiesel distributors, producers and marketers, or even at a public pump throughout any nation. Biodiesel does have its cons, however the pros outweigh them. From the looks of it, biodiesel is going to have a bright future ahead of us.
Come to my Other Blog:
agriculture
fertilizer
internet&Computer
javaneese culture
The sources of biodiesel can be divided into: 1) Lipid accumulation in plants and algae 2) Hydrocarbons produced in algae or plants.
The lipid sources can be sunflower, linseed, Jatropha, safflower, peanut, rapeseed, olive seeds etc. These lipids have high energy value but are highly viscous. Hence they cannot be easily injected in the engine combustion chambers. This limitation is suggested to be solved by a process called pyrolysis or blending with solvents, emulsification with addition of water or fuels etc, but none proved fit. It was later decided that synthesizing esters of fatty acid was the solution to the viscosity problem. But production from edible oils commands a high price even in developed countries. Hence non-edible oils are the fresh sources for biodiesel. E.g.: Jatropha. These are now cultivated in large areas and researched for biodiesel production.
Certain algae accumulate large (about 60%) of Lipids in their cells when grown in a nutritionally suffucient medium. This property can be exploited to produce large amounts of lipids. Some freshwater algae and plants also store hydrocarbons (made of hydrogen and carbon atoms). E.g. in Botryococcus braunii, 75% of biomass is made of hydrocarbons. Other brown, red and green algae consist of varying amounts of Lipid content. USA, Austria, France, Czechoslovakia, Germany, Malaysia, Italy & other Asian countries have realized the benefits of Biodiesel. These countries are now competing in research on Biodiesel and its production.
The basic chemistry of biodiesel synthesis lies in transesterification process, where an ethyl ester reacts with methanol to form methyl ester and ethanol. Glycerol is a by - product developed in the process which ahs other industrial applications. Methyl esters are favoured for biodiesel production because of the cetane number.
Cetane number is a dimensionless value assigned to indicate the ignition quality of a liquid. This value is high, in case of long unbranched alkanes which are similar long chained compounds. High cetane numbers are related to compound that have low idle noise and easy starting even in cold weather. Though Biodiesel holds much promise for the future, its list of cons includes its properties as being a solvent, able to take up water from the atmosphere etc and sometimes providing reduced power in engines.
Many have patented the process of producing Biodiesel and one such patent is owned by DuPont and Colgate-Palmolove-Peet, and also by CLRI (India). Biodiesel is available nationwide. It can be purchased from the legalized biodiesel distributors, producers and marketers, or even at a public pump throughout any nation. Biodiesel does have its cons, however the pros outweigh them. From the looks of it, biodiesel is going to have a bright future ahead of us.
Come to my Other Blog:
agriculture
fertilizer
internet&Computer
javaneese culture
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