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Volume 2
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10.3390/fuels2040022
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Article

Experimental Studies on Wood Pellets Combustion in a Fixed Bed Combustor Using Taguchi Method

by
Carlos Castro
*,
Lelis Fraga
,
Eduardo Ferreira
,
Jorge Martins
*,
Pedro Ribeiro
and
José C. Teixeira
*
MEtRICs, Department of Mechanical Engineering, Engineering School, University of Minho, Azurém, 4800-058 Guimarães, Portugal
*
Authors to whom correspondence should be addressed.
Fuels 2021, 2(4), 376-392; https://doi.org/10.3390/fuels2040022
Submission received: 20 August 2021 / Revised: 13 September 2021 / Accepted: 15 September 2021 / Published: 23 September 2021
(This article belongs to the Special Issue Chemical Kinetics of Biofuel Combustion)
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Abstract

The combustion of wood pellets in a fixed bed combustor of a 20 kW capacity domestic pellet boiler was tested according to several factors including Power, Excess Air (EA), Primary/Secondary air Split Ratio (SR) and Grate Area (GA). The Taguchi method was applied to program the experimental design. Several parameters were measured, including gas emissions (CO), fuel bed temperature (measured at 4 different heights), and efficiency. The experimental results show that the lower CO emission and the higher efficiency were obtained at medium thermal loads and the highest temperature on the fuel bed was obtained at about ¼ of its height (15 mm). The results obtained from the analysis of variance (ANOVA) show that the SR and the Power are the most important factors contributing to the CO reduction and also increase the fuel bed temperature.
Keywords: wood pellet; excess air; thermal load; gas emissions; thermal efficiency; Taguchi method wood pellet; excess air; thermal load; gas emissions; thermal efficiency; Taguchi method
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MDPI and ACS Style

Castro, C.; Fraga, L.; Ferreira, E.; Martins, J.; Ribeiro, P.; Teixeira, J.C. Experimental Studies on Wood Pellets Combustion in a Fixed Bed Combustor Using Taguchi Method. Fuels 2021, 2, 376-392. https://doi.org/10.3390/fuels2040022

AMA Style

Castro C, Fraga L, Ferreira E, Martins J, Ribeiro P, Teixeira JC. Experimental Studies on Wood Pellets Combustion in a Fixed Bed Combustor Using Taguchi Method. Fuels. 2021; 2(4):376-392. https://doi.org/10.3390/fuels2040022

Chicago/Turabian Style

Castro, Carlos, Lelis Fraga, Eduardo Ferreira, Jorge Martins, Pedro Ribeiro, and José C. Teixeira. 2021. "Experimental Studies on Wood Pellets Combustion in a Fixed Bed Combustor Using Taguchi Method" Fuels 2, no. 4: 376-392. https://doi.org/10.3390/fuels2040022

APA Style

Castro, C., Fraga, L., Ferreira, E., Martins, J., Ribeiro, P., & Teixeira, J. C. (2021). Experimental Studies on Wood Pellets Combustion in a Fixed Bed Combustor Using Taguchi Method. Fuels, 2(4), 376-392. https://doi.org/10.3390/fuels2040022

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