Hello Doug, I will follow your instructions to collect the gas. Will let you know the other compositions soon.
It was a great loss for everybody to see Ray move on he was 85. He was a pilot in addition to being an engineer and agronomist he had a plaque on his wall saying " Old pilots never die, they just go to a higher plane" he really must be up there!!. Ray's idea of biomass was for Food, Fuel and fertility. He demonstrated this in his 50 acre coconut land where he planted fast-growing leguminous (Grilicidia cepium ) trees between the coconu trees. Used the lopped branches of these trees to be used in his 30 kw gasifier running a small coier factory, the nitrogen from the Grilicidia cepium were a source of fuel for the coconut trees. We started a trial fuelwood plantation back in 2009 on Ray's advice, the trees were again Grilicidia cepium we did several trials regarding the yield of plants and some good studies of plant growth. The fuel wood of this plantation is now used to run a gasifier at a hotel. With Ray's initiative "Grilicidia cepium" has been named the 4th plantation crop of Sri Lanka ( Tea, Rubber and Coconut are the first three). SRC is catching up in the island most of our gasifiers are fueled with SRC plantations where they use only the branches of trees having a regeneration time of about 6 months. Thank You for your time and advice Regards Indika From: Gasification [mailto:[email protected]] On Behalf Of Doug Sent: June 29, 2017 3:58 PM To: [email protected] Subject: Re: [Gasification] Gas Sampling 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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