UKTC Archive

RE: Disposal of Waste/sustainable fuels

Subject: RE: Disposal of Waste/sustainable fuels
From: Ian May
Date: Nov 30 2000 18:42:56
Rupert/Everyone ....
How bizarre, nevertheless, it still produces carbon based waste gases, but
at least not from fossil fuels.

Now I recall a recent report on a concept car powered by (the highly
volatile) hydrogen and which acknowledged simplistically that this is a main
constituent of water, the other being oxygen, discarded as a waste
byproduct. 
The petrochemical industry have been aware of water as a fuel for 40 odd
years and every time science produced a more effective way to split the two
components and to make the principle portable and safe, the industry sat on
it.
Having deliberately done this for so long, I wonder if the petrochemical
industry will become accountable in the same way that has befallen the
tabacco industry.
Their eventual challenge no doubt will be how to deny their customers access
to free fuel, so presumably there will be an essential X ingredient, but the
technology is under wraps, here and now, so how far must we go, and at what
point do we reach an unacceptable level of pollution before business ethic
gives way to environment pressure ?
When their customers stop following like sheep and vote with their feet.
Mine is just one conceptual viewpoint, I would be disappointed if everyone
agreed, but if not please feel free to share yours.

Regards 
Ian       

-----Original Message-----
From: Baker, Rupert [SMTP:Rupert.Baker@xxxxxxx.gov.uk]
Sent: 29 November 2000 10:46
To:   UK Tree Care
Subject:      RE: Disposal of Waste

There is another alternative to steam power - one that was developed and
used in the former Soviet Union between the wars, in area where they
needed
transport and had no petrochemicals:  
They had a closed kiln on the back of their lorries, into which they put
small branchwood etc, and gasified it -like in an efficient charcoal kiln.
The gas was put through a crude scrubber (what an image that conjours up!)
and then fed into the lorry's ordinary internal combustion engine - a gas
powered vehicle, wood fuelled.  The big advantages of this approach over
steam power are 1) you don't release much carbon - unless you use the
charcoal so produced on your barbie
                                              2) being internal combustion
it is inherently more efficient than steam power
                                              3) the technology for modern
steam cars has been in the doldrums for 20 years or so; while IC engines
continue to sophisticate
                                              4) If it worked for the
Soviets 70 years ago, imagine how efficient you could make it nowadays -
compare a horrible old Russian tractor with a recent Fergy or Ford.

      -----Original Message-----
      From:   Ian May [SMTP:MayI@xxxxxxxxxx.gov.uk]
      Sent:   28 November 2000 17:00
      To:     UK Tree Care
      Subject:        RE: Disposal of Waste

      Chris Hastie wrote;. 

      > Its time to start work on designing that wood chip powered
chipper:
      > 
              I love this "off the wall" stuff but I guess we have all
probably
      been dreaming along these lines ;
              Why can we not power our stationary chippers hopper fed with
some of
      the fuel/chips/compost they produce?
              At least then we would not be polluting with waste from
fossil
      fuels.

              On the face of it, this is a CO2 neutral proposition but
presses the
      recycling button with not just chips but also a nutrient rich
fertiliser in
      the form of wood ash which could then be turned into pellet or
granular
      form, and used to feed more trees.

              However the only way to convert this energy resource
effectively is
      by burning to create STEAM  !!

              Retrospective technology maybe but what a golden age,
anoraks et al,
      and this time round we can used the technology gained in intervening
years
      to use steam power even more efficiently, and with less waste
emission.  

              The more we frighten ourselves environmentally, the more
this can
      become a reality. 

              Regards to all 
              Ian
                




      
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