Probably keep me in adequate retirement comfort. [emoji6]Quote:
Originally Posted by Tombie
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Probably keep me in adequate retirement comfort. [emoji6]Quote:
Originally Posted by Tombie
By enlarging the photo and looking at it a bit closer, it appears to be either a drive coupling, OR the drive end of the generator.Quote:
Originally Posted by Old Farang
The flange appears to have a row of bolt holes in it. I would say that it was the drive end that let go first, followed closely by a massive overspeed of the turbine leading to it disintegrating.
That type of damage is what can happen if a unit is put online out of synch, but surely with all the modern interlocks and control electronics, that cannot happen!
Saw this on Reddit... '''Catastrophic''' damage to Callide Power Station (Queensland, Australia, May 25, 2021) : CatastrophicFailureQuote:
Originally Posted by Old Farang
Cannot vouch for authenticity. Building in both shots is different. Something doesn't quite seem right with scales and relative sizes...
Attachment 171347
Thanks - yes they are hydrogen cooled - have been as long as I know of - Hazelwoods were all Hydrogen cooled when I was there in the late 80’s, and they had been well before that. Still never heard of one exploding in the decades I’ve been around them. There’s a lot goes on to ensure no ignition source is close so I guess they didn’t get that but right on this occasion... [emoji56]Quote:
Originally Posted by Old Farang
Indeed, in my pocket I’d be thrilled.Quote:
Originally Posted by DiscoMick
However on an industrial scale not much at all.
In a Mining Supply Chain sense it’s not much chop either - we speak of those numbers like loose change down the back of the lounge [emoji41]
Some specs of the station:
It states that it generates at 275Kv, but surely that is the grid voltage and NOT the generator voltage?
Some mind blowing temperatures and pressures being quoted.
Callide Coal-Fired Power Stations, Queensland - Power Technology | Energy News and Market Analysis (power-technology.com)
The 900MW Callide Power Plant (Callide C) was commissioned in 2001 at a cost of A$800m. Callide C has two 450MW units and, like Callide B, generates power at 275kV. Toshiba supplied the advanced cycle steam turbine, and IHI the boiler.
Steam temperatures and pressures were raised again over Callide B, to 566ºC and 25,100kPa.(3,640 psi)
It is managed by Callide Power Management, a joint venture company.
Callide C was the first power station in Australia to use supercritical boilers, which have higher thermal efficiencies than conventional coal-fired technology. Callide C uses coal from the nearby Anglo Coal Callide Mine, and draws water from Awoonga Dam near Gladstone.
Callide C has consistently achieved 94% availability since the most recent big outage in mid-2006. The unit’s environmental controls include real-time emissions monitoring with operator alarms and self-tuning capabilities within the control system.
Baghouse filters remove fly ash and low nitrogen oxide burners further reduce emissions of oxides of nitrogen.
I see today's Qld budget includes $22m to design a pumped hydro power station at the Borumba dam. It will be the second pumped hydro after the one at the Wivenhoe dam. So that's good.
That’s a good use of resourceQuote:
Originally Posted by DiscoMick
I also note the Qld budget assumes state-owned coal power generators, who paid a dividend of $1.6b to the state government in 2017-18, will cease to pay any dividend from 2022-23, and will run at a loss from then on, until they reach the end of their lives. Renewable power generators will progressively replace them. The budget includes $2b in new renewable projects.
Sounds like a lot doesn’t it.
Unfortunately nowhere near the capital investment needed though.
