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| Author | Leawood Pumping Engine |
spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 21/06/2012 13:53:34 Reply | Quote To Thrutch What are the number of strokes your engine is making per minute? -- spitfire IP: 86.175.19.194 |
Morlock Joined: 31/07/2008 View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 21/06/2012 15:48:38 Reply | Quote From http://www.middleton-leawood.org.uk/ "This equates to a speed of over 7½ strokes per minute, which is twice as fast as the engine is operated today!" IP: 86.29.103.230 |
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spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 21/06/2012 16:22:22 Reply | Quote Thanks for that Morlock, the reason I asked was looking at the video it appeared to be working much faster. I should have read the written information as well  -- spitfire IP: 86.175.19.194 |
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Morlock Joined: 31/07/2008 View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 21/06/2012 16:38:04 Reply | Quote I've never given any thought to how a loco type boiler would be connected to the chimney in a pumphouse application so read all the info just in case there were a few engineering drawings. Sure Thrutch will update us on technical details. IP: 82.26.92.224 |
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Thrutch Joined: 16/02/2009 View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 07:59:09 Reply | Quote The Leawood engine is usually run at around 4 strokes/minute. We have run it faster and always believed until recently that it's maximum speed was around 7 strokes/minute. However, documentation has turned up which gives figures for volume of water pumped - these indicate that the engine was run at a higher speed. With regard to connecting the locomotive type boilers to the chimney - the boilers have locomotive smoke boxes, complete with holes for the chimneys, blanked off as the gases pass down through the bottom of the smokeboxes and along flues under the yard to the chimney. The smokeboxes are have those lovely, slightly domed, flush fitting doors seen on locomotives of that 1900 period. The boilers are from a batch of ten ordered for stationary engine use. IP: 86.183.87.139 |
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spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 10:12:00 Reply | Quote What a shame we do not take such a pride in buildings and machinery like this any more (click image to open full size image in new window) -- spitfire IP: 86.175.123.121 |
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Boy Engineer Joined: 20/06/2008 Location: Derby View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 12:17:29 Reply | Quote Er, some of us do. I'm lucky enough to be supplying components to a world leader in aero gas turbines. They take pride in their work and we take pride in manufacturing components for them. For sure they aren't covered in mahogany strips to hold asbestos lagging in place (technology moves on) but let's cut the "no one takes any pride" cr*p. Sermon over. IP: 80.177.35.242 |
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spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 12:22:07 Reply | Quote Point Taken  -- spitfire IP: 86.175.123.121 |
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Trewillan Joined: 21/02/2012 View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 13:14:27 Reply | Quote Boy Engineer wrote: Er, some of us do. I'm lucky enough to be supplying components to a world leader in aero gas turbines. They take pride in their work and we take pride in manufacturing components for them. For sure they aren't covered in mahogany strips to hold asbestos lagging in place (technology moves on) but let's cut the "no one takes any pride" cr*p. Sermon over. Something to do with the consequences of failure in the aero industry? Still easy to find other stuff created with a definite lack of pride. IP: 2.99.131.161 |
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spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 14:06:36 Reply | Quote To Thrutch. Looking at your running cost, for the size of engine you have they seem about right. Have you considered the following: raise steam to full working pressure using only wood. When full pressure is reached and a thick fire bed established, then and only then start to add the expensive coal. Do not be tempted to mix the two as this will result in a messy fire. I know this is not feasible for loco's or road engines as the action of the blast pipe jerks the fire around, but it should be OK on a stationary boiler. Another alternative, if there is a plentiful supply is to fire entirely on wood it'll keep you busy but far cheaper. I have always considered raising steam by coal (especially these days) as a complete waste of money Try it a couple of times, I would be pleased  or disappointed  to hear the results.-- spitfire IP: 86.175.123.121 |
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exspelio Joined: 02/05/2012 Location: peak district View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 23:17:07 Reply | Quote Or coppiced charcoal?, (less tar) IP: 87.127.158.157 Edited: 22/06/2012 23:19:34 by exspelio |
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Morlock Joined: 31/07/2008 View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 23:26:28 Reply | Quote A selection of fuels with calorific values. http://www.indiasolar.com/cal-value.htm IP: 86.29.105.224 |
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Trewillan Joined: 21/02/2012 View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 23:45:29 Reply | Quote Note the use of Kcal per Kg in the table. Is this unique to India? I've always seen CV's in KJ/Kg. IP: 92.24.147.54 |
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exspelio Joined: 02/05/2012 Location: peak district View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 23:56:58 Reply | Quote There you go, twice the energy from charcoal (lets ignore the energy it takes to produce it, the gaseous crap is not going into the engine system). IP: 87.127.158.157 |
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spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 22/06/2012 23:57:15 Reply | Quote exspelio wrote: Or coppiced charcoal?, (less tar) But more expensive than coal. -- spitfire IP: 86.175.20.35 |
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exspelio Joined: 02/05/2012 Location: peak district View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 23/06/2012 00:02:11 Reply | Quote spitfire wrote: exspelio wrote: Or coppiced charcoal?, (less tar) But more expensive than coal. I thought you said wood to start up, that was what I was responding to. IP: 87.127.158.157 |
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spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 23/06/2012 00:04:31 Reply | Quote I did but not charcoal -- spitfire IP: 86.175.20.35 |
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exspelio Joined: 02/05/2012 Location: peak district View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 23/06/2012 00:08:35 Reply | Quote spitfire wrote: I did but not charcoal No, I said charcoal, Less gunging up. IP: 87.127.158.157 |
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spitfire Joined: 22/04/2008 Location: Camborne View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 23/06/2012 00:12:17 Reply | Quote Although it is a lot hotter (some say too hot) it would not be suitable for a boiler of that size, and to get the same amount of work done it would work out dearer than coal -- spitfire IP: 86.175.20.35 |
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exspelio Joined: 02/05/2012 Location: peak district View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
Leawood Pumping Engine
Posted: 23/06/2012 00:18:17 Reply | Quote We are talking about startup, after that run on coal, by the way, I'm on rum, what are you on? IP: 87.127.158.157 |
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