[Stoves] [biochar] Energy / fuel / biochar DATA from Kenya Re: FW: REQUEST for complete sets of raw data of cookstove tests.

[Erin Rasmussen]

The article Biomass availability, energy consumption and biochar production
in rural households of Western Kenyacan be found here:
http://dx.doi.org/10.1016/j.biombioe.2011.05.002

And you can rent read-only access to it for $0.99 from Deep Dyve.

Cheers,
Erin Rasmussen
erin at trmiles.com 

begin earlier message snip: 

From: biochar at yahoogroups.com [mailto:biochar at yahoogroups.com] On Behalf Of
Kevin
Sent: Thursday, May 23, 2013 2:07 PM
To: biochar at yahoogroups.com; Discussion of biomass cooking stoves
Cc: Crispin Pemberton-Pigott; biochar at yahoogroups.com
Subject: Re: [biochar] Energy / fuel / biochar DATA from Kenya Re: [Stoves]
FW: REQUEST for complete sets of raw data of cookstove tests.

  
Dear Paul
 
I did a search for the Article you reference below, but could not find it.
Other Articles at the SciDirect Site cost $35.95
each. http://www.sciencedirect.com/science/journal/09619534/35/11  My
comments are on yours, and the Abstract you present...
 
"Biomass availability, energy consumption and biochar production in rural
households of Western Kenya"
Biomass and Bioenergy Vol 35 (2011) pp.3537-3546
Dorisel Torres-Rojas a, Johannes Lehmann a,*, Peter Hobbs a, Stephen Joseph
b,
Henry Neufeldt c
a Department of Crop and Soil Sciences, Cornell University, 9090 Bradfield
Hall, Ithaca, NY 14853, USA
b University of South Wales, NSW 2052, Australia
c World Agroforestry Center (ICRAF), Nairobi, Kenya

Abstract
Pyrolytic cook stoves in smallholder farms may require different biomass
supply than
traditional bioenergy approaches. Therefore, we carried out an on-farm
assessment of the
energy consumption for food preparation, the biomass availability relevant
to conventional
and pyrolytic cook stoves, and the potential biochar generation in rural
households of
western Kenya. Biomass availability for pyrolysis varied widely from 0.7 to
12.4 Mg ha1 y1
with an average of 4.3 Mg ha1 y1, across all 50 studied farms. Farms with
high soil fertility
that were recently converted to agriculture from forest had the highest
variability
(CV ¼ 83%), which was a result of the wide range of farm sizes and feedstock
types in the
farms. Biomass variability was two times lower for farms with low than high
soil fertility
(CV ¼ 37%). The reduction in variability is a direct consequence of the soil
quality, coupled
with farm size and feedstock type. The total wood energy available in the
farms (5.3 GJ
capita1 y1) was not sufficient to meet the current cooking energy needs
using conventional
combustion stoves, but may be sufficient for improved combustion stoves
depending
on their energy efficiency. However, the biomass that is usable in pyrolytic
cook stoves
including crop residues, shrub and tree litter can provide 17.2 GJ capita1
y1 of energy for
cooking, which is well above the current average cooking energy consumption
of 10.5 GJ
capita1 y1. The introduction of a first-generation pyrolytic cook stove
reduced wood
energy consumption by 27% while producing an average of 0.46 Mg ha-1 y-1 of
biochar.

Paul S. Anderson, PhD  aka "Dr TLUD"
Email:  psanders at ilstu.edu   Skype: paultlud  Phone: +1-309-452-7072
Website:  www.drtlud.com