
The term hybrid energy system refers to those applications in which multiple energy unit conversion devices are used together to supply an energy requirement. These systems are often used in isolated applications and normally include at least one renewable energy source in the configuration. Hybrid energy systems are used an alternative to more conventional systems, which typically are based on a single fossil fuel source. Hybrid energy systems may also be used as part of distributed generation application in conventional electricity grid. (more…)
There are numerous possible applications for hybrid power systems. The most common examples are (1) remote AC network, (2) dist ...
The characteristics and components of a hybrid system depend greatly on the application. The most important consideration is wh ...
Renewable energy generators are devices that convert energy from its original form in the renewable energy source into electric ...
The primary electric drivetrain components for fuel cell vehicles are the same as those for any electric vehicle: traction motors, ...
Smoke from biomass and coal combustion contains a large number of pollutants with known health hazards, including particulate matter, carbon monoxide, nitrogen dioxide, sulfur oxides (mainly from coal), formaldehyde, and polycyclic organic compounds (e.g., carcinogens such as benzo[a]pyrene). The concentrations of each of these pollutants vary among the different forms of solid fuels, with animal dung and crop residues having some of the highest level emissions to environment of particulate matter, one of the important indicator pollutants for health effects. (more…)
Exposure to indoor air pollution from the combustion of solid fuels has been implicated, with varying degrees of evidence, as a ...
Important research over the past few decades has illustrated that indoor air pollution and indoor smoke from solid fuel poses i ...
Indoor air quality (IAQ) research deals with the presence, levels, health effects, and control of physical, chemical, and biologica ...
In terms of aggregate health effects, household solid fuel use is currently the most important source of indoor air pollution i ...
Exposure to air pollutants and air pollution problem are very high in indoor environments in developing countries. Smith has es ...
A number of countries have vehicle tax incentives programs designed to reward purchasers and owners of alternative fuel-efficient vehicles (or to penalize purchasers and owners of fuel in efficient vehicles) by tying vehicle purchase and/or ownership taxes either directly to fuel economy or to vehicle features associated with fuel economy (e.g., engine displacement). (more…)
We know of no studies that have examined vehicle taxation incentives programs elsewhere in the world, but it seems likely that ...
This latter form of new car taxes can actually serve as an impediment to higher fuel economy to the extent that increased energ ...
Economists have overwhelmingly favored fuel taxes over fuel economy standards as a means to reduce fuel or gasoline consumption ...
Whatever the actual motivation, American policymakers perceived a need after 1973 to restrict automobile and light truck cons ...
Under both former President Bush and new President Obama, the U.S. government has vowed to reduce reliance on imported oil. The ...

Mercedes-Benz presented at Geneva Style F800 Concept (the F stands for Mercedes: technology, design and art), a prototype that shows the path that the firm will design and technological advances in the recent future.
The platform can equip the F800 fuel cell systems and hybrid plug, through the use of compartments in the frame for storing hydrogen fuel cells and lithium ion batteries. (more…)
A number of countries have vehicle tax incentives programs designed to reward purchasers and owners of alternative fuel-efficient v ...
The most commonly researched and most developed application of using hydrogen as a fuel source is in conjunction with a hydrogen fu ...
The primary electric drivetrain components for fuel cell vehicles are the same as those for any electric vehicle: traction motors, ...
Most production systems try to become first full-scale production begins as small toys and devices of concept. The Horizon hydr ...
There are different types of vehicle propulsion systems and the transportation fuels that have been studied for their potential ...