It is progress in the development of hydrogen-air PEM stacks that has made fuel cells a contender for powering automobiles of the future. For many years, the energy and power densities of PEM cells were so low and the amount of platinum catalyst required was so high that most commercial applications seemed out of the question. For example, the platinum requirements for the PEM cells used on Gemini space missions of the 1960s were on the order of 100 g/ kW, for a cost factor of $1500/kW (assuming a platinum cost of $15/g). A typical automotive fuel cell stack would be 80 kW, implying a cost of $120,000 for the catalyst material alone. By comparison, current automotive catalytic converters require roughly 0.05 g/ kW of platinum-group metals, costing on the order of $100 for an average car. More stringent emissions standards are pushing precious metal requirements higher, so that future gasoline vehicles may need 0.1 to 0.2 g/kW of platinum group metals. (more…)
Numerous other parts are needed for a complete fuel cell engine suitable for motor vehicles. These auxiliary components include man ...
Fuel cells are typically classified according to type of electrolyte. While many varieties of fuel cells have been demonstrated ...
Polymer Electrolyte Fuel Cells have high-power density, rapid startup, and low-temperature operation (around 80 to 120 C), and ...
A fuel cell is an electrochemical device that directly converts a fuel to electricity by means of reactions on the surfaces of ...
Alkaline fuel cell, often known as the Bacon fuel cell following the British inventor’ name. It has become the most created fue ...
Any conversation about the search for alternatives energy in future to fossil fuels research, improve energy efficiency and reduce greenhouse gas emissions over time has the potential of fuel cells to meet these challenges. As a result of greater attention to the fuel cell industry in general there is an upward trend on several fronts, as shown in several recent reports. Lux Research Advisory firm predicts worldwide sales of commercial fuel cell will be reaching $2 billion after year 2012. It is mainly driven by applications in residential combined with commercial heating and power systems and distributed generation applications. (more…)
Alkaline fuel cell, often known as the Bacon fuel cell following the British inventor’ name. It has become the most created fue ...
Transport applications tend to demand rapid start-up and instant dynamic response from fuel cell systems, so a high-temperature ...
The primary electric drivetrain components for fuel cell vehicles are the same as those for any electric vehicle: traction motors, ...
A fuel cell is an electrochemical device that combines hydrogen with oxygen to generate electricity, heat and water to produce. ...
Fuel cells are typically classified according to type of electrolyte. While many varieties of fuel cells have been demonstrated ...
Most alternative fuel vehicles on the road today were originally designed for gasoline, but converted for use with an alternative fuel. Because the petroleum industry has successfully responded to the competitive threats of alternative fuels by developing reformulated gasoline that burn much cleaner, the conversions are typically performed more for economic reasons (when the alternative fuel is less expensive, which has occurred with propane) rather than environmental reasons. (more…)
Gasoline is used mainly by cars, motorcycles, and light trucks; diesel is used mainly by heavier trucks, buses, and trains. Togethe ...
There are different types of vehicle propulsion systems and the transportation fuels that have been studied for their potential ...
The demand for alternative fuels to substitute current fossil fuels is increasing more that ever. This is because the less avai ...
Because transportation is such a large contributor to global warming, both globally and in the United States, climate and energy ex ...
Hydrogen has many applications when it comes to fuel. It can be used both in internal combustion engines and hydrogen fuel cells. ...
Numerous other parts are needed for a complete fuel cell engine suitable for motor vehicles. These auxiliary components include many familiar pieces of equipment, such as blowers, pumps, heat exchangers, sensors, and controls. However, fuel cells have specialized performance requirements, so substantial engineering effort is needed to develop auxiliary systems suitable for fuel cell vehicles. (more…)
It is progress in the development of hydrogen-air PEM stacks that has made fuel cells a contender for powering automobiles of the f ...
A fuel cell is an electrochemical device that directly converts a fuel to electricity by means of reactions on the surfaces of ...
Fuel cells are typically classified according to type of electrolyte. While many varieties of fuel cells have been demonstrated ...
Polymer Electrolyte Fuel Cells have high-power density, rapid startup, and low-temperature operation (around 80 to 120 C), and ...
Heat-actuated heat pumps are cooling systems requiring no electricity for operation. Rather, a heat source is used, avoiding the ne ...