TITLE:
Thermal Performance and Emission Analysis of a New Model Cylindrical Cook Stove with Controlled Air Flow
AUTHORS:
Issaka Ouédraogo, Bouwèreou Bignan-Kagomna, W. D. Arsène Ilboudo, Albert Keré
KEYWORDS:
Cookstove, Thermal Performance, Emissions
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.12 No.11,
November
7,
2022
ABSTRACT: We present in this paper the results of experimental
and numerical study of the thermal performances of a cook stove prototype
intended for the parboiling of paddy rice. Thus, the experimental results show
that the optimal mass of husk rice is M = 7.15 kg for a good combustion within the combustion chamber and got a maximum
temperature at the level of the burners surface. This temperature is Tcu1=304.78°C. The circulating air flow rate by forced convection is Qm = 0.09112 m-3·s-1.
The vertical side walls temperature is Tple = 140.6°C and the water temperature and vapor
is about 144.6°C in the stockpot. The gas combustion is composed of
carbon dioxide (CO2), carbon monoxide
(CO), methane (CH4) and the ratio of hydrogen to nitrogen (H2/N2). The results from the numerical modeling
indicateTcu1=307.8°C, Tple = 144.55°C and a Qm = 0.09258
m-3.s-1. The average thermal efficiency of the cookstove
is η = 46.6% and the power developed
by the cookstove is about ≈6 kW. Despite the heat losses, the cookstove remains
interesting for paddy rice parboiling activities.