Longer hotter runs don't make it worse unless you have failed fuel issues to start off with. They don't actually run any hotter btw they just uprate because of more accurate instrumentation that measures thermal output so when you get better numbers of your power rating it makes it appear they run hotter.
my two cents
sf
Incorrect. A BWR runs significantly hotter and depending on the PWR design Tave may go up too. The more accurate instrumentation ALLOWS the plant to run hotter, not just use the existing instrumentation In a BWR the ONLY way to get more power is to run hotter..
Learn what you're talking about before you utter this type of nonsense please..
