Be Brave and thats gonna be okay!
See you soon!
See you soon!
It was FSNL mode, but of course they were close to allowable spreadsControlEng999,
I've been looking over the values in the screenshots you sent; there are several which just don't pass the sniff test....
A_CTDA_SL is the SAME signal for both CTDA inputs.... AND the value is 33.39 deg C.... For axial compressor discharge temperature. That seems ... odd.
The values being passed to KSPL6 and KSPL7 (SELECT_1:OUT and SELECT_2:OUT) are also the same value: 140 deg C. That also seems ... odd.
Finally, the values of actual spreads, A_TTXSP1, A_TTXSP2 and A_TTXSP3 are pretty darn close to TTXSPL.
We can't see the entire combustion monitor bit of application code, so we are left to wonder about the above values.
We also don't know what the operating condition was at the time the screenshots were taken: FSNL. Spinning Reserve, 20 MW, etc.
But, it's just odd that, one, the CTDA values are so low, and two, the spreads are so high. 100+ deg C for actual spreads whilst operating on gas fuel is pretty darn high.... And, close to the TTXSPLn values.
Just some observations.
CSA English language is not my mother tongue, I meant that spreads were high during that start up, and of course as you said I used trender for data analyzing ,ControlEng999,
" ... but of course they were close to allowable spreads ...."
What does that mean, please? What do we not know about this unit? Is there something special/unusual about the combustion system? The fuel delivery system? Why would one expect actual exhaust temperature spreads to be high at FSNL on "first fire?"
I'm SOOOOO confused!!!
I try to learn something from these posts--and I actually do learn a lot, technically and professionally and human nature-wise as well. I completely fail to understand the above statement. Complete failure of understanding.
We have jumped through hoops for this thread--hoops I don't usually jump through (calculating TTXSPL, for example)--and this is what we get in return. " ... but of course they were close to allowable spreads ...." We (well, one of us) has been patient waiting for feedback. And this is what we get.
This whole thread makes absolutely no sense. "[I demand someone] tell me how to simply and easily calculate TTXSPL." "Oh, well, I can see it's difficult, so never mind." " ... but of course they were close to allowable spreads .... "
No. Sense. What. So. Ever.
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