Flexible Operations and Heat Rate

Most coal-fired power boilers were originally designed for base load operation, but current market conditions dictate that many of these units operate in a continuous transient mode, following the generation demand. This new mode of flexible operation presents multiple problems for the aging fossil fleet, increasing costs as well as reducing time online and total generation.

This paper will explore some of the reasons behind the decreased efficiency, describe actions to mitigate those problems, and identify the technology gaps to further improve part load heat rate.

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