662 Secondary Fuels

Several other fuels have been demonstrated as viable candidates for use in fuel cells. These are listed in this chapter as secondary fuels, since they are not considered primary candidates for widespread application in fuel cells for distributed power generation. However, each of the following fuels has been demonstrated, to some extent, as a feasible fuel to utilize in fuel cells:

• Dimethyl ether

• New petroleum distillates

• Coal gasification products

Depending upon the fuel selection above, many considerations must be made. Some fuels are more difficult to reform than others. Some require extensive processing before they can be used. Other fuels are only available in limited markets and can be considered opportunity fuels. In all cases, contaminants such as sulfur must be removed from the gases that enter the fuel cell.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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