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Messages - RobD

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1
Lister Based Generators / Re: Cogen would this work?
« on: January 17, 2006, 02:37:46 AM »
KPGV,
         I recently replaced the water heater in my house so I have the information on the sizes on heater available at Home Depot readily at hand. From the chart it looks like the water heaters have two elements, top and bottom as you state, however each element is 4500W. This would make the total draw if the heater 9000W. Of course there are other element options of 3800W and 5500W respectively.

One possible solution would be to install some "Point Of Use" water heaters. These are 1440W or 2000W and are 120V single phase. The largest of these is 20 Gallons.

RobD

2
General Discussion / RFD TV
« on: December 30, 2005, 05:16:38 PM »
Anybody watch RFD TV (channel 379 on directv)? They have some shows on "old Iron" that sometimes show stationary engines.

3
Lister Based Generators / Re: custom ST generator heads.
« on: December 30, 2005, 04:55:48 PM »
Yep, Back in Northern Ireland, where I come from, most of the linen and flax spinning mills were powered by steam engines. These steam engines drove a main shaft that ran the length of the mill by means of a rope and pulley system. Our local mill (in Bessbrook) had a 160HP engine that drove an 8 rope pulley. The various machines were then driven off the main shaft via flat leather belts.

RobD

4
Lister Based Generators / Re: custom ST generator heads.
« on: December 27, 2005, 05:27:50 PM »
I think the operative word in n2toh's post is that they "can" be direct driven. That does not mean that they "have" to. These units "can" also be belt driven, with any engine, all you have to do is match engine RPMs to Genhead RPM with the appropriate pulleys. It has been many years (25+) since I did motor theory in skool but what I can remember is that the more poles you have the smoother the power generation will be. I know that this is true with motors and I think that it is also true with generators. So from a smooth power perspective (think PC's and other electronics) this might be a good idea.

RobD.

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