Factors Shaping Automobile Propulsion Technology

Automobile Propulsion
Fuel cell vehicles are being developed because they promise to meet the requirements expected of automobiles in a market increasingly constrained by environmental and resource limitations. Air pollution and oil dependence have been persistent challenges for vehicles powered by petroleum fuels (gasoline and diesel). Global warming presents a new challenge in the need to limit carbon dioxide (CO) emissions from fossil fuel combustion. (more…)

Miniature and Microscale Heat Engines for Power Generation Propulsion

Many characteristics of traditional engines make them attractive for use in power generation and propulsion technology. They tend to be self-aspirating and rely on combustion, which at the macroscale is a very robust form of heat generation. Fuel is plentiful and inexpensive, with storage easily realized. The energy density of the fuel (or fuel plus container), when compared with electrochemical sources, is high. Along with these advantages come a number of drawbacks, especially where miniaturization is concerned. For example, an engine is thermodynamically restricted (by the Carnot efficiency) in its conversion of chemical energy to work due to the intermediate heat-generating step. (more…)

Battery Application Guide & Technology: Household, Consumer, Government, Military

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