James, There is a definite lack of fuel analyses of these woods. As you know many studies identify the species used for fuel and there are many analyses of nutritional value and other characteristics but few ultimate, proximate or calorific value studies. Wood density is about the best you get because the denser woods are preferred for charcoal.
I would think that among the theses done on charcoal there would be individual analyses of woods that are not reported in the publications of the same studies. There must have been some lab analyses done in the CHAPOSA (Tanzania) project but I have seen none reported. The investigating institutions should be queried. Compiling a fuel characteristic database would seem to be a good project for HEDON. Maybe you can send your analyses along to Grant and see what other analyses they can accumulate. Cashew nuts are easy if you want data from India and Brazil. Tom -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of James Robinson Sent: Sunday, August 22, 2010 6:48 AM To: [email protected] Subject: [Stoves] Ultimate and Proximate analyses for Mozambican trees Dear Stovers, We've just come back from a field trip to Northern Mozambique (Nampula province) where we have been conducting some Uncontrolled Cook Tests (UCT) on in-situ 3 stone fires in around 25 rural households (plus one set of field boiling tests). We took a fuel sample for each test and have already calculated the moisture content but, while the samples will eventually be sent to a lab for testing, I wondered if anyone had any ultimate or proximate analysis data for the following wood types that they could share (local names in brackets): 1) Julbernardia globiflora (Mpacala, Muhimbe) 2) Uapaca nitida (Mukoi) 3) Diplorhynchus condylocarpon (Rocossi) 4) Anacardium occidentale (Ncadjo) (Cashew nut) 5) Newtonia buchananii (Nipovera) 6) Uapaca zanguebarica (Cochokore) I've checked the various databases listed on the website but am not having much luck. Thanks in advance! Cheers James --- James Robinson Researcher SeTAR Centre University of Johannesburg Republic of South Africa _______________________________________________ Stoves mailing list [email protected] http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org http://stoves.bioenergylists.org http://info.bioenergylists.org
