Tuesday, April 1, 2008 - 8:30 PM
Economic Benefits of Hydrogen Purity Control in Power Plant Cooling Applications
Robert Friedland, Distributed Energy Systems
The low density and high thermal conductivity of hydrogen make it superior to air for use as a cooling fluid in electric power generators. Hydrogen significantly reduces the windage friction losses within a generator thereby increasing overall plant efficiency. The supply and use of hydrogen gas, however, should not be taken lightly. Considerations need to be made to control costs, secure a reliable supply, ensure the safety of the installation and implement the most efficient way of operating the generator hydrogen system. Critical to the proper implementation of such a system is the supply of a continuous, stable flow of high purity hydrogen from a trusted source. The traditional mode of hydrogen supply differs from plant to plant depending on plant size, permit restrictions on the volume of stored hydrogen and distance from the central hydrogen supply. Some plants utilize single cylinders or transportable cradles of six, twelve, or eighteen cylinders. Others utilize large bulk systems that are either stationary high or low pressure tanks or transportable high pressure tube trailers. Regardless of how hydrogen is supplied, the goal should always be the same – maintain an uninterrupted supply of pure hydrogen to meet the OEM specified requirements for generator pressure, purity, and dew point.
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Back to The NHA Annual Hydrogen Conference 2008 (March 31-April 4 2008)
Back to Program
Back to The NHA Annual Hydrogen Conference 2008 (March 31-April 4 2008)