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- Xref: sparky sci.energy:7178 talk.environment:5680
- Path: sparky!uunet!pipex!warwick!uknet!edcastle!aisb!aifh!jamesh
- From: jamesh@aifh.ed.ac.uk (James Hammerton)
- Newsgroups: sci.energy,talk.environment
- Subject: Re: Energy Strategy and Global Warming
- Keywords: energy efficiency CO2 abatement cost effective
- Message-ID: <1993Jan23.180012@aifh.ed.ac.uk>
- Date: 23 Jan 93 18:00:12 GMT
- References: <1993Jan19.204206.3708@pmafire.inel.gov> <1993Jan20.130020.13824@aisb.ed.ac.uk> <1993Jan20.130701.14221@aisb.ed.ac.uk> <1993Jan21.230554.28718@gn.ecn.purdue.edu>
- Sender: news@aisb.ed.ac.uk (Network News Administrator)
- Reply-To: jamesh@aifh.ed.ac.uk (James Hammerton)
- Organization: Dept of AI, University of Edinburgh, Scotland
- Lines: 59
-
- In article <1993Jan21.230554.28718@gn.ecn.purdue.edu>,
- constant@gn.ecn.purdue.edu (Tino) writes:
- # In article <1993Jan20.130701.14221@aisb.ed.ac.uk> jamesh@aisb.ed.ac.uk
- (James Hammerton) writes:
- # >Yet, in going from a fuel to electricity,
- # >there is always a considerable amount of waste heat produced. This can
- # >be used profitably to heat buildings. This is known as cogeneration(or
- # >combined heat and power;'CHP'). CHP stations that provide electricity for
- # >a grid, and heat for houses in the local area, can achieve efficiencies
- # >of 70% or more(what I mean is that 'useful energy' in the form of useful
- # >heat or electricity, is 70% of the energy avialable in the original
- # >fuel)[10].
- #
- # But Greenpeace grossly condradicts itself on this issue.
- #
- # Greenpeace says:
- # 1. CHP can double (or more) the efficiency by sending waste heat to nearby
- # city buildings (and it is a LOT of waste heat, I might add).
- #
- # 2. You're not going to build a nuke/coal plant in my backyard!
- #
- #
- # Also, can you imagine if a nuke plant was CHP?
- #
- # Greenpeace: "You mean that steam passed through a steam genenerator that
- # was in a RADIOACTIVE NUCLEAR POWER PLANT! Shut it down! Shut it down!"
- #
- # Get real. You can't have it both ways.
-
- I think I've already replied to these points before, however here goes again.
- Firstly, I am not suggesting we use nuclear power in this way, and you are
- right that there would be a reaction against it. Secondly CHP is widely used
- in Sweden, Denmark and other countries have schemes going as well. The main
- objection to CHP, would be local air pollution. Using fluidized bed
- combustion
- most pollutants of any fuel be it wood, coal, rubbish etc can be removed
- cheaply.
- Indeed FBC units can take different kinds of fuel. Finally due to the doubled
- efficiency only half the potential pollution would be produced anyway. In the
- long
- run we are talking about using biomass based CHP and CHP that burns rubbish.
- Both
- technologies exist, both use resources more productively. Finally I am not
- suggesting we build these things blindly. They do have impacts, they should
- be
- considered and the people who will live with them consulted. Experience of CHP
- so
- far though suggests that there are few barriers to it's uptake. Greenpeace
- aren't
- contradicting themselves on this point at least.
-
- James
-
-
- --
- * James Hammerton * If Pascal is equivalent to the *
- * Email: jamesh@uk.ac.ed.aisb * mini-metro,then ML is the concept *
- * * car where steering is done *
- * * recursively using the gearstick. *
-