Yes, Steam at pressure is dangerous, however, the two basic configurations: water tube and fire tube, are quite different in their dangerousness. A fire tube heats an enclosed vessel filled with water, and when that water is heated to pressure it has all the mass of water behind it ready to expand when it can. If a break in the vessel occurs, you have a huge repository of heated liquid/steam mass ready to escape. If this steam escapes out a crack, it is bad, if it escapes by explosion, it is worse than disasterous. However, if a water tube system develops a crack or worse, it is far less dangerous, as it USUALLY only develops a crack and it is contained inside the fire vessel (enclosed, that is) and the mass of heated water/steam is far less than the fire tube type. This is why water tubes are used over fire tubes today. The coil tube, of course, is of the water tube variety but a special type that heats the water very quickly. Even so, it is contained in the heating enclosure and is most likely to develop pin hole type leaks. Good for automobiles.You could try this for information which applies to coil steam generators just as much as to "tank" boilers... becuase steam at pressure is just a dangerous, however you configure the boiler to generate steam.
Of course they are safe when built and operated correctly, I just thimk the water tube type are all round better and safer. I don't care about model exactness. I thimk there was a boiler explosion on a ship in Portland, Oregon harbor in the late 1890's--not sure if it was Oregon or some where else, not sure about the date, but apparently the explosion took out a block sized space, kilt many people.Thanks Richard. I understand your point. But all boilers that are correctly made to approved designs with certified materials and processes, and with the correct controls and trained operators and management, should be safe. I am in a Model Eng. Club that has 70 plus members. More than half run steam - either stationary models or locos on the track where we provide passenger rides to the public. I understand the club members have never had a catastrophic failure. In 25 years I only know of one incident where a boiler was difficult to keep in steam because the boiler had developed a leak. I think the boiler was over 40 years old. All the locos are 'tank' type, as are most of the stationary and road engine boilers. But all boilers are tested and certified as complying with regulations. So I am a bit suprised at any reluctance to use that type of boiler? Of course, there are operational differences with tank and mono-tube boilers. It just depends on "operational needs" for the steam, as to which is most suitable, in my humble onion.
Well, tht reminds me, (I wasn't there in Portland when that ship blew), In 1913 when Stravinsky in Paris on opening night with The Rite of Spring, I had managed to get a perfect seat in gthe audience. soon after the music started, someone yelled "Booo", a couple minutes later someone else burst out laughing, then the boos started. Someone else yelled "Shut up, I want to see this", soon, a riot broke out. I crawled out of the theatre, thimking that I would return tomorrow. Well, the police were called to put down the riot in the theatre and the band played without missing a beat and the dancers not missing a step. The next day, I went early to get in line for tickets and it was a good thing I did. For in a few minutes the street was filled with persons trying to get tickets. Altogether 10,000 people showed up as the riot last night was reported in the papers and the public wanted in on the fun. I managed to get my ticket and get in the theater just in time to see the 10,000 start another riot. The police were called in again. So much for explosive situations, just a little music boiling a little too much.Fair comment on Victorian history, without real quality control of materials design and manufacture, never mind training of operators, and management of boiler rooms, boiler maintenance, etc.
I remember the 1960s when there was a traction engine (old then) and the stoker tapped the safety valve with a bit of metal... to let off some pressure. My Dad said it should work without being tapped! It was at some sort of fun fair (can't remember). But he led us away, and we couldn't stay and watch it. Funny how memories come back?
Well, I was just a little tyke when I got to see the battle of Shiloh from a hilltop. I remember it well.Hi Richard, While I enjoy tall tales, if you were born in 1913 you would be 106 years old. Not unreal, just rare...
But for you to go "early to get in line for tickets " suggests you must have been at least 14... so that puts you about 122 years old? - So did you serve in the Great War? A couple of my teachers did.
Are you sure you are not simply recounting another's tale? - you look younger in your photo! And the tale reminds me of a tale my Grandfather told me - but I thought he said it was New York. But the records show you are right, it was Paris, so maybe he was just recounting a tale?
The riot at the Rite: the premiere of The Rite of Spring
He had sailed on the RMS Titanic, but in 1913 was on the RMS Olympic doing the New York run... having transferred from Titanic's working-up trials off Belfast, just a couple of weeks before Titanic sailed her maiden voyage, as his oppo on the Olympic went sick. He wrote in his journal how sick he was to miss the first trip on Titanic! - How lucky I am that he didn't! He was "4th Eng'r." running the Dynamos... - And that's NOT a tall tale.
Our history is written, but we must write our future.
Of course, this all pleased Stravinsky a great deal.
Of course, just for you. So I went several times to the Rite and got used to that supremely strange music and was enjoying Paree when the Archduke was killt. We all thot it would blow over, but later we found that certain international banksters WANTED war--$$$$. I didn't want to join up when the war came, but I had to defend gay old Paree so I did join up. It just so happened that the unit I was in had a captain that I had known on the outside. He hated me ferociously, for why, I never knew, probably because of my humility and good looks and smarts too, of which he was most likely jealous.And here was me enjoying Shakespeare's Midsummer Night's dream in the middle of yet another pandemic.
But for those who want to grasp anything about the Rite of Spring, might I suggest that you witness a variation on it from Walt Disney's Fantasia.
Of course if you think about the Spring of1913 anf then Spring 1914, you are looking at the death of the Archduke Ferdinand-and we know what happened- or do we?
Well history does repeat itself? So Richard - your story please