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Preventing HRSG Failures

Posted September 04, 2016 12:00 AM by Engineering360 eNewsletter

Combined-cycle natural gas generation is quickly proving to be a popular alternative to both traditional coal power and renewables, because it can ramp up output quickly. But is the growing popularity of this technology resulting in increasing heat recovery steam generator (HRSG) failures? Engineering360 says cycling of combined-cycle plants has led to abuse of HRSG pressure components since most were not designed to withstand the stress caused by faster startups and low-load operations. Here is an up-close look at the most common types of HRSG failures, their causes, and what can be done to prevent them.


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