On Thu, 13 September 2001, Rob Mosher wrote:
well their generator overheated. no power at the facility
YMMV, this is not professional advice. If this was professional advice, it would be accompanied by an invoice. Speaking with a mechanical engineer, he suggested you may be able to restore some generator operation by continiously running a water/hose over the outside of the radiator. Not so much to clean it, but to act as once-through heat transfer to cool the engine. I hope you can get it going again.
Sean Donelan wrote (on Sep 13):
Speaking with a mechanical engineer, he suggested you may be able to restore some generator operation by continiously running a water/hose over the outside of the radiator. Not so much to clean it, but to act as once-through heat transfer to cool the engine.
I hope you can get it going again.
The radiator yes. Just try not to get the engine block too wet. Rapid cooling of a hot engine can cause the metalwork to fatigue quickly, at worst, or warp it at best. :( I know someone who managed to crack a piston shaft this way once on a regular engine. Chris. -- == chris.luke@group.easynet.net T: +44 20 7900 4444 == Group Network Manager for Easynet Group PLC F: +44 845 333 0122
Not to mention, cooling the radiator won't help at all, considering it's the water pump that failed. On Thu, 13 Sep 2001, Chris Luke wrote:
Sean Donelan wrote (on Sep 13):
Speaking with a mechanical engineer, he suggested you may be able to restore some generator operation by continiously running a water/hose over the outside of the radiator. Not so much to clean it, but to act as once-through heat transfer to cool the engine.
I hope you can get it going again.
The radiator yes. Just try not to get the engine block too wet. Rapid cooling of a hot engine can cause the metalwork to fatigue quickly, at worst, or warp it at best. :( I know someone who managed to crack a piston shaft this way once on a regular engine.
Chris. -- == chris.luke@group.easynet.net T: +44 20 7900 4444 == Group Network Manager for Easynet Group PLC F: +44 845 333 0122
-- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben -- -- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
InterNAP, and possibly others have lost power again. Word is that the ConED generator ran out of fuel, the replacement water pump on the generator was installed, but the generator failed again, and a fuel truck 6 blocks away isn't being allowed through by the authorities. Joe On Sat, 15 Sep 2001, Alex Rubenstein wrote:
Not to mention, cooling the radiator won't help at all, considering it's the water pump that failed.
On Thu, 13 Sep 2001, Chris Luke wrote:
Sean Donelan wrote (on Sep 13):
Speaking with a mechanical engineer, he suggested you may be able to restore some generator operation by continiously running a water/hose over the outside of the radiator. Not so much to clean it, but to act as once-through heat transfer to cool the engine.
I hope you can get it going again.
The radiator yes. Just try not to get the engine block too wet. Rapid cooling of a hot engine can cause the metalwork to fatigue quickly, at worst, or warp it at best. :( I know someone who managed to crack a piston shaft this way once on a regular engine.
Chris. -- == chris.luke@group.easynet.net T: +44 20 7900 4444 == Group Network Manager for Easynet Group PLC F: +44 845 333 0122
-- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben -- -- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
They claim that they "underestimated fuel usage". Anyhow, they now calculate that the latest shipment will last til Tuesday. Would anyone like to line up some bets on that? I say Sunday, about 5 a.m. it will run out. Anyone else? Additional bets on whether they have the next truck ready... Is anyone aware of whether 32 Old Slip is back on utility power? Thanks, Charles | Charles Sprickman | Internet Channel | INCH System Administration Team | (212)243-5200 | spork@inch.com | access@inch.com On Sat, 15 Sep 2001 polarcat@darwin.smarter.net wrote:
InterNAP, and possibly others have lost power again. Word is that the ConED generator ran out of fuel, the replacement water pump on the generator was installed, but the generator failed again, and a fuel truck 6 blocks away isn't being allowed through by the authorities.
Joe
On Sat, 15 Sep 2001, Alex Rubenstein wrote:
Not to mention, cooling the radiator won't help at all, considering it's the water pump that failed.
On Thu, 13 Sep 2001, Chris Luke wrote:
Sean Donelan wrote (on Sep 13):
Speaking with a mechanical engineer, he suggested you may be able to restore some generator operation by continiously running a water/hose over the outside of the radiator. Not so much to clean it, but to act as once-through heat transfer to cool the engine.
I hope you can get it going again.
The radiator yes. Just try not to get the engine block too wet. Rapid cooling of a hot engine can cause the metalwork to fatigue quickly, at worst, or warp it at best. :( I know someone who managed to crack a piston shaft this way once on a regular engine.
Chris. -- == chris.luke@group.easynet.net T: +44 20 7900 4444 == Group Network Manager for Easynet Group PLC F: +44 845 333 0122
-- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben -- -- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
Unnamed Administration sources reported that Alex Rubenstein said:
Not to mention, cooling the radiator won't help at all, considering it's the water pump that failed.
Note for future: it's possible the water supply can cool the generator single-pass. IOW, pipe in H2O from supply, let its pressure move through block & dump the hot water. This can be a little tricky from the engine not being TOO cold but is worth looking into. This assumes a good volume & pressure of water, of course. -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
..if you want to risk cracking the block.. :/ I hope they clean the filters and change the oil while it is down, though. -Dennis On 13 Sep 2001, Sean Donelan wrote:
On Thu, 13 September 2001, Rob Mosher wrote:
well their generator overheated. no power at the facility
YMMV, this is not professional advice. If this was professional advice, it would be accompanied by an invoice.
Speaking with a mechanical engineer, he suggested you may be able to restore some generator operation by continiously running a water/hose over the outside of the radiator. Not so much to clean it, but to act as once-through heat transfer to cool the engine.
I hope you can get it going again.
A typical big CAT blows OUT through the radiator and away from the block. You actually may want a high capacity non-cloging fog nozzle aimed through the fan blasted at the radiator. There will be a lot of evaporation. THAT is very good from a cooling point of view, but you don't want the radiator growing a layer of insulating mineral deposits either. Evaporative cooling will do a LOT more cooling than just pissing the same amount as hot water down the drain The very fine mist helps keep mineral dist tiny and hopefully it will blow/wash away. Also a large fine mist is less apt to shock cool and crack any cast iron than a solid stream would. The corner hardware store generic hose nozzle set on a modest flow with reasonably fine mist is your best bet quickly, but can clog. Set too fine, and you won't get the volume you need. Longer term and maybe just for grins, look at the Bete cork screw nozzles (http://www.bete.com/products/app/misting.htm). You see them on snow making machines, in the upper corners of the sealed booth on X-files where cutting the black-ooze rock killed the FBI lab guy, and of course on the coating lines where M&Ms get colored. Alomst impossible to clog, too. If it isn't a major installation screwup (ducts to small, etc), fix whatever is wrong. Belts loose? ----- Original Message ----- From: "dennis opacki" <dopacki@adotout.com> To: "Sean Donelan" <sean@donelan.com> Cc: <nanog@merit.edu> Sent: Thursday, September 13, 2001 6:24 PM Subject: Re: telehouse - 25 broadway
..if you want to risk cracking the block.. :/
I hope they clean the filters and change the oil while it is down, though.
-Dennis
On 13 Sep 2001, Sean Donelan wrote:
On Thu, 13 September 2001, Rob Mosher wrote:
well their generator overheated. no power at the facility
YMMV, this is not professional advice. If this was professional advice, it would be accompanied by an invoice.
Speaking with a mechanical engineer, he suggested you may be able to restore some generator operation by continiously running a water/hose over the outside of the radiator. Not so much to clean it, but to act as once-through heat transfer to cool the engine.
I hope you can get it going again.
participants (8)
-
Alex Rubenstein -
Barton F Bruce -
Charles Sprickman -
Chris Luke -
David Lesher -
dennis opacki -
polarcat＠darwin.smarter.net -
Sean Donelan