Energy Evaluation and Comparative Analysis of Ecodesigned Charcoal Stove and Kerosene Stove (original) (raw)
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African Journal of Science, Technology, Innovation and Development, 2015
This paper evaluated fuel utilisation in cooking stoves. The cooking stoves used for the experiment were a pressurised kerosene stove and a pyramid-shaped clay-lined charcoal stove. Comparison tests were conducted and their results analysed to determine the efficiency of the stoves. The specific fuel consumption of the pressurised kerosene and clay-lined charcoal cook stoves per kilogram of food were obtained as 48 680 and 28 302 kW/kg respectively. The thermal efficiencies of the stoves were 60.18% for the pressurised kerosene stove and 51.35% for the clay-lined charcoal stove. These results indicate or confirm that the pressurised kerosene stove has the highest efficiency.
FUOYE Journal of Engineering and Technology
Improved cook stoves (ICS) are known to ensure efficiency in the use of traditional fuels, reduce smoke emission and associated health hazards during cooking and reduce cooking time. Another benefit of ICS is in mitigating the effects of climate change. This paper presents the thermal performance and achievable emission reductions by ICS for daily cooking in households aroundBauchi.It evaluatesan ICS using the International Workshop Agreement (IWA) which rates cook stoves on four indicators (Indoor emission, total emission, efficiency/fuel use and safety) each indicator is rated along five tiers (0: lowest performing to 4: highest performing).The evaluation focused on efficiency/fuel use. The benchmark values for thermal efficiency, fuel use and energy use are 35%, 0.310kg and 7928kJ.This shows that the ICS offers modest improvements in fuel use and it is rated as a tier 3 ICS. A carbon savings of can be achieved on an annual basis assuming all rural and urban households in Bauchi ...
Thermal efficiency of charcoal fired cookstoves in Ghana
2013
Biomass is a predominant feedstock for household cooking and heating in developing countries. Charcoal fired cookstoves can be considered an important intermediary for sustainable energy consumption as well as promoting healthy kitchen environments due to the significant reduction in the emission of indoor pollutants associated with smoke in wood fires. The performance indicators (Boiling time, Burning rate, Thermal efficiency and specific fuel consumption) of three popular charcoal fired cookstoves in Ghana (Gyapa, Ahinbenso and the Traditional coalpot) were assessed using the water boiling test (WBT) version 4.1.2 method with Kopie von WBT data calculation sheet 4.1.2 software to generate the performance indicators for five (5) replicate measurements. Charcoal from neem was used as fuel. The specific fuel consumption (MJmin -1 L -1 ) at low power was determined to be 0.018±0.004 MJmin -1 L -1 for Ahinbenso, 0.022±0.004 MJmin -1 L -1 for Gyapa and 0.023±0.010 MJmin -
Abstract Indoor air pollution (IAP) from biomass cook stoves seriously affects human health worldwide. Most of the biomass stoves in use are traditional cook stoves, which produce toxic emissions and consume a lot of fuel. This has prompted the introduction of improved stoves to address the problem. Improved stoves help families meet their household cooking and heating requirements without the risks posed by traditional stoves. The purpose of this study was to investigate the stove performance (in terms of IAP levels and efficiency) of stove A (an improved wood stove) and stove B (an improved charcoal stove) and compare them with traditional three stone and the Kenyan metallic Jiko. The stoves were tested using the water-boiling test (WBT). Particulate and CO and CO2 were monitored using data loggers, which all work, on the principle of light scattering. Results were entered in the WBT data calculation sheet to obtain all the parameters critical in evaluating the stoves performance. Results indicated a 50% decrease in CO emissions in Stove A compared to the three stone fire wood stove and a 60% decrease in charcoal stove B compared to metallic charcoal jiko. All traditional stoves fell below WHO limit of 30ppm over an hour of CO exposure.CO2 decreased by 20% and 6% with stoves A and B compared to three stone and metallic jiko. Charcoal Stove B and Three-stone firewood stoves were above 600ppm, WHO limit. There was an 80% decrease in PM2.5 in stove B, compared to metallic jiko and 17% decrease in stove A compared to three stone firewood stove. All stoves except B exceeded 0.2mg/m3 limit set by WHO for PM2.5 when using biomass fuel. There was a 63% increase in level of efficiency in charcoal stove B compared to the Metallic Jiko while a 64% increase in thermal efficiency in stove A compared to three stone stove. A 73% and 23% decrease in specific fuel consumption was noted in firewood stove A and charcoal stove B compared to the metallic and three stone firewood stove respectively. Objectives of the study were met.
Development of an Improved Coal Stove for Cooking in Developing Countries
2009
In this study, an improved coal stove was designed, fabricated and tested to evaluate the thermal performance of the stove. The performance of the stove was compared with that of traditional coal stove and conventional kerosene stove. The results obtained showed a better performance of the improved coal stove in terms of cooking duration and specific fuel consumption than that of the traditional coal stove and kerosene stove. The results also showed that the improved coal stove with coal burning rate of 0.15 kghr–1 can handle fuel more efficiently and economically than traditional coal stove, which has coal burning rate of 0.20 kghr–1. The thermal efficiency of improved coal stove was found to be 42.6%, whilst those of kerosene and traditional coal stoves were 40.5 and 28.2%, respectively.
Evaluation of powered charcoal stove by using different biomass fuels
International Journal of Agricultural and Biological Engineering, 2011
Abstract: A powered stove was designed to utilize biomass effectively with easy ignition, uniform fire, and shorter cooking time. The stove consists of a blower with hand winder and a fuel carrier. Performance evaluation carried out show that boiling time decreased with increased volumetric air flow rate. For air flow rates of 0.13 m 3 /s, 0.14 m 3 /s, and 0.16 m 3 /s, the time to bring 4.5 L of water to boiling point decreased correspondingly from 14 to 12 and to 10 min. This trend was observed for all the biomass used namely wood, corn cobs and charcoal. However in comparing with the three biomass fuels, it took longer time to bring water to boiling point by using charcoal followed by wood and corn cobs in the above order. The percentage heat utilized and fuel efficiency increased with increase in the volumetric air flow rate. There was no significant difference ( P ≥0.05) in the heat utilization and fuel efficiency of wood, corn cobs and charcoal. The results also show that the s...