London Low Emission Zone - Feasiblility Study

if you know that, this would be great as well:

% of coal power plant emissions that is unburnt fuel

It really depends upon whether the engine is burning a ‘rich’ or a ‘weak’ mixture of petrol and air. A mixture about 10% rich in fuel gives the most power, whilst the most efficient running occurs with a weak mixture. Unburnt fuel in the form of carbon monoxide occurs in either case but with a weak mixture there is very little CO; a rich mixture, on the other hand, can give rise to as much as 3% unburnt CO.

One Response

1. clausiusminkowski Says:
   October 31st, 2009 at 1:53 am

   It really depends upon whether the engine is burning a ‘rich’ or a ‘weak’ mixture of petrol and air. A mixture about 10% rich in fuel gives the most power, whilst the most efficient running occurs with a weak mixture. Unburnt fuel in the form of carbon monoxide occurs in either case but with a weak mixture there is very little CO; a rich mixture, on the other hand, can give rise to as much as 3% unburnt CO.
   References :

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