| Issue |
E3S Web Conf.
Volume 712, 2026
2026 16th International Conference on Future Environment and Energy (ICFEE 2026)
|
|
|---|---|---|
| Article Number | 03005 | |
| Number of page(s) | 7 | |
| Section | Fuel Combustion Emissions and Alternative Energy Applications | |
| DOI | https://doi.org/10.1051/e3sconf/202671203005 | |
| Published online | 19 May 2026 | |
CFD-Based Energy and Thermal Performance Evaluation of a Coconut Shell-Fired Downdraft Kiln for Sustainable Brick Production
1 College of Engineering and Architecture, Faculty, Mapua Malayan Colleges of Mindanao, Gen. Douglas MacArthur Hwy, Talomo, Davao City, 8000 Davao del Sur
2 Department of Mechanical and Manufacturing Engineering, University of San Carlos, Talamban Campus. Gov Cuenco Ave, Cebu City, Philippines
* Liregine S. Cayme: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
Enhancing energy efficiency and reducing environmental impact in energy-intensive industries are essential for sustainable energy systems. This study numerically evaluates the energy and thermal performance of a coconut shell-fired downdraft brick kiln as a renewable alternative to fossil-fuel-based firing. A three-dimensional kiln model was analyzed using Computational Fluid Dynamics (CFD) to examine combustion, airflow, and heat transfer. Fuel properties from proximate and ultimate analyses yielded an adiabatic flame temperature of2242 K. Results indicate stable downdraft heat circulation, firing-zone temperatures above 1000 K, and a specific energy consumption of 2.7 MJ/kg while while the experimental batch SEC was 3.5 MJ/kg, demonstrating improved efficiency and reduced carbon intensity compared with conventional kilns.
© The Authors, published by EDP Sciences, 2026
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