Bio diesel or bio ethanol as replacement of fuels that commonly from fossil fuels are needed in great worries that in the end fossil fuels will run out eventually. With those fact alternative energy are kept on going looking for the best resource for fuel replacement. Speaking of bio ethanol, currently we do know that [...]
Archive for August, 2011
Today most of the people on the world using fossil fuels as primary energy for moving machine, electricity, cars, etc. Others then that familiar energy that we have been used is oil, gas, and coal. Loss of use of fossil fuels is in addition to damaging the environment, as well as non-renewable and unsustainable. Fossil [...]
If agro-biofuels are neither feasible nor desirable, why are billions of dollars and euros being poured into agro-biofuel production through investments and subsidies? Have politicians suddenly lost their minds? Have investors suddenly lost their common sense? As a matter of fact, as is argued in detail further on, neither investors nor politicians have lost their [...]
For this assessment we used official data and technical coefficients provided by a very detailed and informative study published by the Sugar Cane Agro-industry Union (UNICA) in Brazil (De Carvalho Macedo, 2005). These data have been checked against the assessment of ethanol production from sugar cane in Brazil provided by Patzek and Pimentel (2005) and [...]
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 [...]