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Computational and Experimental Investigation of a Portable Pneumatic Extinguisher for Forest Fires


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DOI: https://doi.org/10.15866/ireme.v17i8.23929

Abstract


This article presents the results of a research study on the optimization and experimental investigation of the effects of impeller parameters on the velocity and pressure at the outlet of a Portable Pneumatic Extinguisher (PPE) using Computational Fluid Dynamic (CFD) simulation data. The independent variables consisted of the inner blade angle, outlet blade angle, and blade number, while the dependent variables were the velocity and pressure at the outlet center of the fan. Multi-objective optimization using Response Surface Methodology (RSM), with a confidence level of 95% for all intervals, revealed that the velocity obtained was 75.15 m/s, and the pressure was 2065.76 Pa under the conditions where the inner blade angle, outlet blade angle, and blade number are 64.04°, 120°, and 24, respectively. To validate the optimization results, the deviations observed in the CFD simulations did not exceed 1%, while the physical experimental model exhibited deviations within 5%. These results demonstrate the acceptable accuracy of the CFD analysis method combined with the RSM optimization method in the design and fabrication of the portable pneumatic extinguisher in this study.
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Keywords


Experimental Investigation; Portable Pneumatic Extinguisher; Response Surface Methodology; Forest Fires

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References


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