Hello,
I am specifying a Fuel Gas Performance Heater for a Combined Cycle following GE recommendations, from this document:
https://powergen.gep...ed-gas-fuel.pdf
Every equipment in this document has its explanation except why specify 2 series units instead of 1. Does anyone know the reason?
I was talking with a co-worker and he thinks it is a way to minimize water entering in the gas system in case of failure, but it doesn't convince me (it just can work for the first unit, water has to go through the first shell to the second one), and I find more likely a failure in the second unit because of greater temperatures.
Could it be related to with gas shell speed improving thermal efficiency? (i am just trying to guess )
thank you for your comments.