Dr. Rudolph Diesel was the inventor of the ubiquitous diesel engine, way back in the 1890s. The doctor developed the project as an answer to the basic steam engines that have been around since the auto was first invented. Steam engines were known to be dangerous and could be very unreliable, not like the diesel engine, which was then popular.
The diesel engine was very different to the petrol engine and the diesel worked on the basis of ignition compression. Air enters into the engine cylinder and is compressed when the piston rises, igniting the mixture and emitting power. The petrol engine on the other hand uses a spark to ignite a fuel/air mix when the air is compressed, and needs a somewhat complex “backup” system of plugs, coils and leads.
While the first public demonstration of what was essentially the early “bio diesel” engine occurred in 1900, it was to be the 1930s before modern biodiesel fuel was developed through the conversion of vegetable oils into fatty acid methyl esters.
When times were plentiful there was not much interest in biodiesel as an alternative fuel. Petro diesel was very cheap and the early versions of vegetable oil based fuels were not suitable for the diesel engines of the time. The vegetable oil in use had a much higher viscosity than petro diesel fuel and this led to experimentation and the development of what we now know as modern biodiesel.
A Belgian inventor came up with a process subsequently termed transesterification in 1937, when he converted vegetable oils as a diesel fuel replacement, but it was to be well into the 1980s before this was perfected due to urgent needs associated with energy security and increased efficiency. At this time the process was perfected, making biodiesel fuel a very real alternative for environmentalists and those concerned about society.
In the 1990s, biodiesel became very acceptable in Europe, much to do with the very high prices of petro diesel. Biodiesel was first produced in 1996 in the United States and since that time has grown to be more widely available and become the subject of much speculation.
We now know how much damage we have caused to our environment through gas emission, industrial and automotive pollution. While this awareness has been slowly emerging, costs associated with energy production have been rising inexorably. Gasoline prices in the US reached all-time highs within the last few years and this has caused consumers to really sit up and take notice of sustainability. Petro diesel costs more than regular gasoline and either method digs into the typical monthly budget cost, so alternatives that are seen to be better for the environment are becoming more popular.
The history of biodiesel seems set for an exciting chapter ahead as we focus more on energy security, environmental issues and balancing our budgets. Nowadays, homemade biodiesel is becoming a stepping stone for many as they seek to attain an element of independence and environmental stewardship. It comes down to the simple equation of whether a sustainable fuel solution can be produced at a lesser cost than the readily available alternative, and in this case, biodiesel is most definitely the answer. It’s a real solution, and a way forward.