Northampton Taxi

Dr. Rudolf Diesel invented the well known diesel engine, 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. The steam engines were inefficient and could be dangerous, and the diesel engine was lauded for its reliability as an alternative.

Unlike the petrol engine that was to gain wider acceptance, the diesel engine operates on the basis of compression – ignition. Air is drawn into the engine cylinder and when the piston rises it compresses this air, which automatically ignites, emitting the 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.

Following the war period and during times of relative plenty, there was little real interest in biodiesel as an alternative. 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. The process of transesterification was successfully matched at this time, making biodiesel fuel a real alternative to those concerned about the environment.

Biodiesel first gained widespread acceptance in Europe in the 1990s, due to much higher prices of petro diesel. Biodiesel first went into production in the US in 1996, and during the decade to follow it has become more and more available and the subject of more interest in general.

Our society as a whole has become much more aware of damage caused to our environment through industrial and automotive pollution. As we are becoming more aware, energy production costs have been shooting upward. 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. As petro diesel is now more expensive than conventional gasoline and each method of propulsion eats into a typical household budget, alternatives that are seen to be more beneficial to the environment are gaining acceptance.

There are exciting times ahead for biodiesel as we seek to constrain our spending, become more secure and focus on environmental issues. 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.