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Solar Exergy

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Solar Exergy

Meta Description: Solar exergy is an important alternative exergy source used in many applications, especially in solar power systems which utilize the heat generated by collectors concentrating and absorbing the sun’s exergy to drive heat engines/generators and produce electric power.

 

Exergy is the maximum useful work that can be obtained from a system at a given state in a given environment; in other words, the most work you can get out of a system. In the last several decades exergy analysis has begun to be used for system optimization by analyzing the exergy destroyed in each component in a process. With the exergy analysis we can see where we should be focusing our efforts to improve system efficiency.

 

Exergy analysis method is a useful tool for promoting the goal of more efficient exergy-resource use, as it enables the locations, types and true magnitudes of wastes and losses. Most known types of the solar-thermal systems to produce electricity are trough/steam turbine, tower/steam turbine, and dish/heat engine systems. Out of all these technologies, tower/steam turbine looks like to be the best choice for high power production as it has the largest operating temperature range.

 

For more information:

https://www.omicsonline.org/open-access/investigation-on-the-exergy-performance-of-a-central-receiver-powerplant-2090-4541-1000168.php?aid=54606

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