There is a well-established data set for corn-ethanol production in the US, without major differences in the physical assessment of biophysical inputs and outputs among different studies. The differences found in the overall assessment of the output/input energy ratio are basically generated by different choices about how to convert the various inputs and outputs into [...]
According to the First Law of Thermodynamics, neither matter nor energy can be created or destroyed. Therefore, it is impossible to have an output/input energy ratio greater than 1 when considering a closed set of energy transformations. To make things more difficult, according to the Second Law of Thermodynamics, any conversion of an energy input [...]
In the next few years again, eventually oil resources will run out, its because of large exploitation of the resources itself. Some market players even made it worst, they’re playing the price for self profit. A quick review of the rapidly growing literature on biofuels and many initiatives looking for alternative energy sources shows an [...]