Direct Methanol Fuel Cell Efficiency

1 2008 11 18 a m.

Direct methanol fuel cell efficiency.

So there is much room. There is intensive research on promising approaches to inc. The direct methanol fuel cell dmfc was developed to tackle the fuel storage problem of hydrogen and to eliminate the need of a reformer to convert methanol to hydrogen. The direct methanol fuel cell dmfc represent an interesting solution to produce electricity.

A schematic representation of a direct methanol fuel cell dmfc which is a type of pem fuel cell is shown in figure 1. The currently achievable energy conversion efficiency for operational cells attains 30 40. Due to its unique advantages such as a higher energy density facile liquid fuel storage capability and simpler system structure the direct methanol fuel cell has been identified as one of the most promising power sources for the portable and clean mobile applications in the near future. Direct methanol fuel cells dmfc have been widely researched for applications in portable electronics due to their use of liquid fuel for easy storage and transportation compared to gaseous hydrogen.

Glaskowsky runs the numbers on a new fuel cell power supply from idatech. But real world figures may be only achieved in some years since the development of direct methanol and ethanol fuel cells is lagging behind hydrogen powered fuel. Their main advantage is the ease of transport of methanol an energy dense yet reasonably stable liquid at all environmental conditions. Theoretically the efficiency of an ethanol fuel cell should be 96 percent but in practice at the highest power density it is only 30 percent due to a variety of reasons.

Direct methanol fuel cells or dmfcs are a subcategory of proton exchange fuel cells in which methanol is used as the fuel. Whilst the thermodynamic theoretical energy conversion efficiency of a dmfc is 97. Bio ethanol based fuel cells may improve the well to wheel balance of this biofuel because of the increased conversion rate of the fuel cell compared to the internal combustion engine. Direct methanol fuel cell.

It has some commercial advantages such low price compact construction quick refueling. A direct methanol fuel cell dmfc is an electrochemical energy conversion device that converts the chemical energy of liquid methanol into electrical energy directly.