On Wed, 19 Jan 2005 19:42:43 -0000, "Mike" wrote:


wrote in message
.. .
On Wed, 19 Jan 2005 09:29:02 +0000, Malcolm Reeves
wrote:

How many litres are there in a 47kG cyclinder?

I reckon it is 24150 l, so 0.11p/l for 47kg at 26.50. How does that
compare with bulk LPG?

I read that the propane density is 500kg per m^3, lpg is a mixture but
principally propane, that gives me 94 litres to the 47kg cylinder and
at GBP26.5 for 47kg about 27.5p/ltre, 4.3p/kWhr.

That's far more like it. Bulk was 23p/litre when we had it and when it when
up for the fourth time in a year I told them to come collect their tank and
put in oil.

Oops. I seem to have propane as 0.5kg/m3 so I think I have missed a
1000 there somewhere. And I worked the numbers out wrong too! Doh!

Sounds like bottles are not that much more than bulk 23p/l vs 27.5p/l.

And we agree on the kWhr price.


--

Malcolm

Malcolm Reeves BSc CEng MIEE MIRSE, Full Circuit Ltd, Chippenham, UK
, or ).
Design Service for Analogue/Digital H/W & S/W Railway Signalling and Power
electronics. More details plus freeware, Win95/98 DUN and Pspice tips, see:

http://www.fullcircuit.com or http://www.fullcircuit.co.uk

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