Abstract
The Design of Experiments (DOE) and the Analysis of Variance (ANOVA) are used to determine the effect of fuel type, fuel initial load, secondary air inlet and ventilation on thermal efficiency and CO emission of two biomass fire cookstoves during boiling or simmering. Analysis of variance with Fischer’s statistical test (F-test) and Newman-Keuls test were applied to establish the influence of the independent parameters on the studied responses. The results of this study are useful to application of charcoal cooks stoves.
Highlights
Energy use is closely linked with economic development, poverty reduction and the provision of vital services
The Water Boiling Test (WBT) consists of three phases: - The first phase is the high power test or cold-start, the tester begins with the stove at room temperature and uses a pre-weighed bundle of wood or other fuel to boil a measured quantity of water in a standard pot. - The second phase, the high-power test or hot-start, follows immediately after the first while stove is still hot
F-critical is obtained by looking at the fisher table between the value given by the Degrees of freedom (DF) line of the numerator and DF column of the denominator. where: df is degrees of freedom SS is Sum of Squares MS is Means of Squares
Summary
Energy use is closely linked with economic development, poverty reduction and the provision of vital services. Solid biomass energy (fuel wood, charcoal, agricultural residues, animal dung, etc.) plays a vital role in meeting local energy demand in many Sub-Saharan Africa (SSA) countries. Fuel wood is predominantly used by rural people, while charcoal is the preferred cooking fuel for most urban and peri-urban dwellers [1]. Basic Charcoal or lump charcoal is usually produced by a process known as slow pyrolysis, by heating wood or other biomass inside relatively air tight enclosure, like an earth covered pit in the ground (earth mound kiln). Reliance on wood-based biomass energy contributes sub-
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