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December 28, 2007 |
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af320.mpg
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Steam Explosion
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News7 Reports on Steam Explosion
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| (0:00:20) URL Added: July 18, 2007 |
(0:05:28) URL Added: July 18, 2007 |
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Video2 |
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More Ametuer Video of Steam Explosion
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Police Brigade, chasing the steam?
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| (0:03:35) URL Added: July 18, 2007 |
(0:01:23) URL Added: July 18, 2007 |
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| Figure xx1. Steam shot from the broken pipe until it was turned off. source |
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NYTimes:
Steam Pipe Explosion Jolts Midtown; One Person Is Confirmed Dead By Sewell Chan July 18, 2007, 6:18 pm |
| "A steam pipe, 24 inches in diameter, installed in 1924, burst. It may have burst because of cold water from the rain, it may have burst because of a water-main break that we don’t know about yet, but in any case, the steam pipe broke and that’s what you’ve seen." |
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| Figure xx2. Once the valves to those pipes were turned off, the steam was no longer visible. Steam becomes invisible very quickly. No "fuzzballs" or mysteries "fuming" from the streets followed this event. Even though this truck was subjected to hot steam, it doesn't appear to have suffered any rust damage. source |
| LATimes 1 killed after pipe explodes in New York Terrorism is ruled out in the underground steam blast; dozens are hurt. By Erika Hayasaki, Times Staff Writer July 19, 2007 |
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"Rain and thunderstorms pounded the area most of the day, and Bloomberg said the most likely cause of the explosion was "cold water getting into the pipe, and cold water apparently causes these to explode." In 1989, a steam explosion in New York's Gramercy Park killed three people and sent a geyser of white-hot steam 18 stories into the air." |
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| Figure xx3. Steam is hot and dangerous. Note that thse firemen don't walk through the steam, here. source |
| The Independent One dead in New York steam explosion By Adam Goldman Published: 19 July 2007 |
| "The steam pipes are sometimes prone to rupture, however. In 1989, a gigantic steam explosion ripped through a street, killing three people and sending mud and debris several stories into the air. That explosion was caused by a condition known as "water hammer," the result of condensation of water inside a steam pipe. The sudden mix of hot steam and cool water can cause pressure to skyrocket, bursting the pipe. " |
| Three Letters Re: Bullet Casting: A (Relatively) Simple Introduction, by AVL |
| "I have two notes regarding casting your own bullets (or any other metal for that matter): First: One piece of safety equipment that you really should have on hand when casting any metal is dry sand. Make sure you have at least 25 pounds of dry sand at the ready. If there is a metal spill, dump the sand on it and it will contain the flow and cool it quickly, plus it will cut of the supply of oxygen, preventing fire. Second: A fire extinguisher is good to have to put out fires, but with molten metal flowing all over the place lighting things on fire, a fire extinguisher is not enough. You must never put water on molten metal, because it will cause a steam explosion. [emphasis added] This will burn you, and send splatters of molten metal flying all over the place making your problems much worse. Choose a dry chemical fire extinguisher that is rated to be used on electrical fires. " |
| WLS-ABC7 NYC steam explosion serves warning about aging U.S. infrastructure July 19, 2007 (NEW YORK) |
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"Some speculate that rainwater or water from a main break somehow seeped onto the pipe, and the sudden interaction between cold water and super-hot steam burst the conduit. Steam explosions, in fact, are rare and have decreased in recent years. The last major explosion in New York, in 1989, killed three people." |
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| (0:06:35) URL Added: December 00, 0000 |
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