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# EOH calculation question

## EOH calculation question

(OP)
Good day everyone,

I have a question regarding the calculation of EOH of a gas turbine.
I was reading a report and there was a sentence saying : " the machine has 48.000 operating hours and 934 starts..... The unit has a total of 15.500 EOH." I do not understand how the EOH can be less than the operating hours.
I would expect that the equation would be somewhat like EOH = OH + ( f * starts) with f > 1. Am I wrong ?

With kind regards,
Marcus

### RE: EOH calculation question

I think the problem is the method of denoting thousands. In some European countries, a decimal point is used to denote thousands (rather than a comma, as here in the USA). If this system is used, then "15.500" is read as fifteen thousand, five hundred.

Best of luck!

### RE: EOH calculation question

EOH is usually equivalent baseload hours, so if your engine sees a lot of part-load operation then the EOH can drop down quite quickly causing the apparent discrepancy you're seeing.

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