Ken, exhaust gasses could be used as lumber dyrer in kilns? Regards, Ben --- El jue 16-dic-10, Ken Boak <[email protected]> escribió:
De: Ken Boak <[email protected]> Asunto: Re: [Gasification] engine exhaust relative humidity Para: "Discussion of biomass pyrolysis and gasification" <[email protected]> Fecha: jueves, 16 de diciembre de 2010, 8:39 Here's a fairly old paper (1980s) on steam drying of lumber http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/5456/Steam_Drying_ocr.pdf?sequence=1 It states that the quickest way to drive water out of wood is to heat the wood above 212F. Air is a mixture of gases and always contains some water vapour. As you increase the air temperature it has a greater moisture holding capacity before it gets saturated. For example 100m3 of air at 120C can hold 35kg of water vapour before it becomes saturated ( or 100cuft can hold about 2lb of water at 250F). Engine exhaust is just a mixture of gases (similar to air but with the O2 replaced with CO2), including a high percentage of nitrogen, and if not saturated with water vapour, has the ability to retain more moisture. Engine exhaust has the means to heat wood fuel well above 212F and also the capacity to carry away the resulting water vapour driven out of the wood. Ken _______________________________________________ The Gasification list has moved to [email protected] - please update your email contacts to reflect the change. Please visit http://info.bioenergylists.org for more news on the list move. Thank you, Gasification Administrator _______________________________________________ The Gasification list has moved to [email protected] - please update your email contacts to reflect the change. Please visit http://info.bioenergylists.org for more news on the list move. Thank you, Gasification Administrator
