Vlog 269: Fire Power
On a sunny day at the Anderton Boat Lift, I was delighted to have the opportunity to chat with Katherine Hutchinson who operates the steam-powered narrowboat Emily Anne.
My prior video about the Anderton Boat Lift can be seen by clicking here.
I am very familiar with compound steam engines typically double or triple expansion units.
I finally got to finish the east half of the K&A after 3 yr of trying and was fortunate to be able to get 1-2 dedicated hours with a volunteer at Crofton Pumping Station. It was very quiet on the day as it was not in steam so I learned a lot about Boulton Watt engines and now the Cornish cycle. My guide was excellent and I was most surprised to learn that only 40% of the power comes from the HP steam, the balance coming from the vacuum created under the piston by drawing off the steam to the condenser.
Katherine’s description of her double expansion engine was a tad confusing.
Was she suggesting that there is an injection of steam under the piston on its way back up the cylinder. Do I have this correct? Is there a name associated with this cycle?
Thanks
Ah, I couldn’t possibly answer that unfortunately as I am absolutely not experienced in these engines. I merely interviewed her, I don’t have the technical expertise to clarify any points she made.
I’d love to know where they get Welsh steam coal from. I thought all the mines had been closed.
Not sure but I’ve certainly heard it’s a dwindling resource.
You know David, I had no idea that a steam operated narrowboat existed! Very well done as usual, a most interesting vlog.
And the lady you interviewed, give her a pat on the back from me for keeping Emily Anne steaming ahead!
Thanks Barry. There’s a very small number of steam narrowboats but they’re definitely few and far between.
As a life-long steam enthusiast, that was wonderful. Not everyone’s cup of tea but what a way to travel. Thank you David
:-)
Great Vlog. Interesting to learn some about steam. Give Katherine my best.
Bruce
:-)
Fascinating and certainly different. I would suspect that the cost of the coal per day would be quite a bit more than the fuel costs of a diesel powered boat, even in these times of high fuel costs.
Yes, definitely. I don’t know about Welsh coal but a 25kg bag for the stove used to cost around £10 so that’s £40 a day on coal at least for the boat. Way more than diesel.
Fantastic docuvlog David. . . Steamengines are so very nostalgic & evoke so many emotions on so many levels.. there is no better smell & sound in the world than a working steam engine.. Thank you soo much for this evocative upload David.., it really takes me back.
I’m very pleased you enjoyed it, cheers!