Hi Indika,
There is a reduction in CO if the gas is collected at over 500C, due to
it revering to soot and CO2. You need to quench the gas temperature as
it is extracted from the collection point as close to the internal gas
where it exits the char bed. If you can do this, then the accuracy of
the analysis will be improved. It would be interesting to see what the
other gas % is claimed by the designer.
Sorry to hear that Ray has passed over. We had quite a few exchanges
about biomass fuel growing.
Regards,
Doug Williams.
Fluidyne.
On 30/06/17 03:14, Indika Gallage wrote:
Hello Doug,
The gasifier has not been tested yet, but the designers claim to have
50% CO in the gas with previous gasifiers, which was unimaginable to
me. When we were speaking of sampling the gas, we have been warned
that the CO of the gas may convert while sampling. This is why I am
researching on the fact.
Certainly,the most sensible thing is a directly coupled gas analyser.
The equipment is rather costly; we will have to use the inline
measurements if we get lower readings from sampling to confirm.
Thank you for your time and a very clear explanation.
Best Regards
Indika
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