Second law of thermodynamics limits the efficiency of any machine. This imposes limits to the performance of any vehicle. When comparing electric with internal combustion vehicles, it is usually said that electric vehicles are much more efficient, but in order to do a fair comparison, the efficiency of generating the electrical energy and its transportation should be included in the comparison. In this video, a comparison of these two technologies is done.
Energy consumption in transportation is easier to understand when studied using physical concepts. Inertia and air friction are the main responsible of the comsumption of energy when a vehicle is moving. Depending if we are driving on a highway or in the city, the different terms have different importance. By using very simple physics equations […]
Social mitigation strategies
City structure
Energy sources
Electric Car
Alternative fuels
Hydrogen
Fossil fuels are the most used energy source in transportation. There are two main characteristics that make them ideal for this activity: a very large energy density and a high power of combustion. On the other side, their carbon dioxide emissions are very large. If we want to change fosil fuels by other fuels we […]
Introduction