This SACAA webinar presentation explores the development of geopolymer-based cookstoves and their potential to address energy, environmental, and social challenges in South Africa and beyond. Using coal fly ash-derived geopolymers, the project demonstrates how innovative materials can be applied to create durable, heat-resistant, and low-emission cooking solutions. The presentation follows the design, testing, and improvement of multiple cookstove prototypes, highlighting their performance under high temperatures and real-world usage. With millions of households still relying on traditional fuels, geopolymer cookstoves offer a practical pathway toward cleaner energy, reduced carbon emissions, and improved public health outcomes.
Key Insights / Summary
Key Topics Covered:
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Geopolymers are highly heat-resistant, making them ideal for cookstove applications
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Multiple prototype designs were tested and improved to enhance performance and durability
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Cookstoves can be manufactured using fly ash, reducing industrial waste
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Fireproof properties allow for efficient combustion and safer cooking systems
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Products were tested in real cooking scenarios, demonstrating practical usability
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Potential to replace paraffin and wood-based cooking methods in households
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Geopolymer stoves support lower emissions and reduced indoor air pollution
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Development includes ongoing improvements in design, airflow, and fuel efficiency
Benefits
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Reduces reliance on traditional fuels like wood and paraffin
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Lowers carbon emissions by replacing cement and inefficient stoves
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Improves indoor air quality and reduces health risks
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Creates opportunities for local manufacturing and job creation
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Supports sustainable energy solutions in low-income communities
Related Resources
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Geopolymer from Coal Fly Ash: Sustainable Construction Materials Explained
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The Use of Legacy Coal Ash in Road Construction in South Africa
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Sustainable Construction Materials: Alternatives to Cement and Concrete
