Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume -, Issue -, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2020.1714820
Keywords
Walnut shells; downdraft gasifier; gasification; producer gas; equivalence ratio; cold gas efficiency
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This research work depicts the results obtained during the experiment performed for walnut shell gasification process. In order to carry out the gasification process, a downdraft gasifier has been installed in a Thermal Engineering Laboratory of National Institute of Technology, Kurukshetra, India for the purpose of generating a combustible gas popularly known as Producer gas. The walnut shells have been gasified with air used as a gasifying agent. In this experimental work equivalence ratio varied from 0.170 to 0.251; subsequently, feedstock consumption rate also varied from 68 to 77 kg/h. Results publicized that at an equivalence ratio of 0.251, cold gas efficiency and calorific value of producer gas has its maximum value of 83.07% and 7.59 MJ/Nm(3), respectively. The percentage of methane (CH4) in producer gas reached its maximum value of 7.04% at equals to 0.251. Further, oxidation zone temperature varied in between 700 and 1000 degrees C during this study.
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