BaltACDNot really - today's youth with diesel trucks 'rolling coal'
https://www.youtube.com/watch?v=zKfVPnzjiig
Overmod BaltACD Not really - today's youth with diesel trucks 'rolling coal' https://www.youtube.com/watch?v=zKfVPnzjiig
BaltACD Not really - today's youth with diesel trucks 'rolling coal'
Sounds like much Rum has already been rolled!
Never too old to have a happy childhood!
BaltACDSounds like much Rum has already been rolled!
And yet so very much more yet to be rolled!!
Oh great...now guess what I've got in me 'ead all weekend long.
Be singing "Roll the coal Geordie" at the checkout line at the Robertsons Trading with everyone looking at me like I've got cabin fever already.
MiningmanOh great...now guess what I've got in me 'ead all weekend long.
At least it's better than poor Don with the demon Donald Duck with five o'clock shadow!
Overmod I don't think turbo lag would account for either the volcanic black smoke or the voluminous white or gray smoke we see in some of these videos. As with Alcos, once the turbocompressor is spooled up the engine should return to near stoich and the exhaust clear up. The Russian engines already have to be running at relatively high rpm to be pumping that much visible smoke, so the black indicates either overfueling or inadequate turbocharging directly, whereas the white smoke with that particular way of evolving is completely uncombusted fuel.
I don't think turbo lag would account for either the volcanic black smoke or the voluminous white or gray smoke we see in some of these videos. As with Alcos, once the turbocompressor is spooled up the engine should return to near stoich and the exhaust clear up. The Russian engines already have to be running at relatively high rpm to be pumping that much visible smoke, so the black indicates either overfueling or inadequate turbocharging directly, whereas the white smoke with that particular way of evolving is completely uncombusted fuel.
These are 10 cylinder engines, with the same bore and stroke as the original FM, 207mm x 254mm, rated at 3000 HP, I think at 1000 rpm but I'll try to check that.
The locomotives were built from 1960 until 2007, with 20,256 units built (that I could find)
Since the engine is a two-stroke, the turbocharger is applied in series with a roots blower of the type fitted to FM engines.
I have seen similar smoke from a very old GE in Argentina that was running as a switcher but with a failed turbocharger. So if the turbo failed, the TE 10 could continue to run with the blower running. It might be able to produce around 2000 HP on the blower alone, depending on where the turbocharger would normally start running.
This is consistent with the appearance of grey smoke from the locomotive at starting, changing to black smoke where the locomotive throttled up.
It seems unlikely that all three or four units in a set would have failed turbochargers but it is possible.
Of course, the videos probably show exceptional locomotives producing more than the average smoke. I note on the third linked video that the lead units smoke very badly while the (apparently identical) pusher units, presumably working as hard, have clear stacks.
Peter
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