tag:blogger.com,1999:blog-3508346572086151757.post1376003087379191449..comments2024-01-09T00:39:13.955+00:00Comments on Oh what NOW!: Fancy a cruise?Unknownnoreply@blogger.comBlogger7125tag:blogger.com,1999:blog-3508346572086151757.post-10561864315372889252012-04-05T22:50:10.789+01:002012-04-05T22:50:10.789+01:00Does halon burn? I would have thought that dumping...Does halon burn? I would have thought that dumping it into the air intake of an engine would stop it PDQ.dakhttp://tpdrsl.orgnoreply@blogger.comtag:blogger.com,1999:blog-3508346572086151757.post-8132597754800286772012-04-04T13:19:27.426+01:002012-04-04T13:19:27.426+01:00Interesting.
The only bit I didn't expect is ...Interesting.<br /><br />The only bit I didn't expect is this "many commercial generator[s] take their air supply direct from the machinery space"<br /><br />I would have expected dedicated air intakes direct from the outside; I suppose that's not done due to cost.<br /><br />Doesn't the volume of air required by a large engine cause problems? Or is it all factored in as part of the ventilation scheme?<br /><br />Do they then pre-heat the air to make the space comfortable for people?<br /><br />So many questions. Nothing is as simple as you think, is it.Weekend Yachtsmanhttps://www.blogger.com/profile/04262853091154005651noreply@blogger.comtag:blogger.com,1999:blog-3508346572086151757.post-42360541691968495522012-04-03T21:41:21.319+01:002012-04-03T21:41:21.319+01:00There must be a manual pull switch outside of the ...There must be a manual pull switch outside of the engine room, to initiate the release of suppression gas.( And it will be wired into the automatic fire detection and suppression system. It has to be. That system has to continuously monitor that manual pull switch.) The drop of gas can only happen when you are safely out of the zone. Otherwise you could get suffocated. <br /><br />So the fire control panel knows you have pulled the switch to drop the halon or CO2. It could be programmed to close down all of your vents and apertures, pronto. Without any further input from you.<br /><br />So the alarm goes off, the staff run out of the zone, and you hit the switch. And because your fire control system has a comfortable battery backup, and some overheat detectors in the zone, and a remote display next to your manual pull switch, you will know when the zone has cooled down and you can open it up again.<br /><br />MontyAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3508346572086151757.post-53402762018717110422012-04-03T19:49:34.816+01:002012-04-03T19:49:34.816+01:00Microdave.
My last ship had the machinery space d...Microdave.<br /><br />My last ship had the machinery space divided into four longitudinal spaces. Main generator room, auxiliary room, motor room, and shaft space. The emergency generator was situated high up in the ship, feeding the emergency switchboard.<br /><br />A hull breach in one space is calculated to not overly have a catastrophic effect on stability.<br /><br />In the case of the Costa Concordia, more than one machinery space was opened to the sea.The Filthy Engineerhttps://www.blogger.com/profile/07584236558282159183noreply@blogger.comtag:blogger.com,1999:blog-3508346572086151757.post-16968495058687739852012-04-03T19:28:51.420+01:002012-04-03T19:28:51.420+01:00I'm sure you can enlighten me as to whether th...I'm sure you can enlighten me as to whether the engine room is normally divided into separate, isolated, sections? <br /><br />If not why not? Wasn't the Costa Concordia capsize due to this large area flooding and making the ship unstable? <br /><br />Presumably the standby set is in a different area? Does this also have separate electrical distribution arrangements?<br /><br />It strikes me that no matter how many alternatives you install, they won't be any use if there are some common points. I'm thinking of the DC10 aircraft which crashed in Sioux City, Iowa after all FIVE hydraulic systems were put of of action when the rear engine blew up.microdavehttps://www.blogger.com/profile/01352078582764696261noreply@blogger.comtag:blogger.com,1999:blog-3508346572086151757.post-64118554150607713962012-04-02T21:11:22.263+01:002012-04-02T21:11:22.263+01:00I despair.I despair.The Filthy Engineerhttps://www.blogger.com/profile/07584236558282159183noreply@blogger.comtag:blogger.com,1999:blog-3508346572086151757.post-81481250284590767632012-04-02T21:05:53.117+01:002012-04-02T21:05:53.117+01:00And I thought the reason cruise ships had their sw...And I thought the reason cruise ships had their swimming pool on the top deck, was if there was a fire down below, all they'd have to do was pull the plug out!Joe Publichttps://www.blogger.com/profile/07829909061904690380noreply@blogger.com