Developing lightweight concrete bricks by replacing fine aggregate with vermiculite: a regression analysis prediction approach

Nakkeeran, G.; Krishnaraj, L.

doi:10.1007/s42107-023-00586-5

Cited by 8 publications

(1 citation statement)

References 23 publications

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“…The adequacy of these models is assessed based on the coefficient of determination, i.e., R 2 , adjusted R 2, and predicted R 2 . Its value ranges from 0 to 1, where a value of 1 indicates that the model explains all variation, and a value of 0 indicates that there is no explanation for any variation provided by the model [50].…”

Section: Experimental Designmentioning

confidence: 99%

Utilization of Biowaste for Sustainable Production of Coal Briquettes

Khan,

Jan,

Abas

et al. 2023

Energies

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In energy scarcity, particularly in Agri-based developing economies, bio-coal briquetting is the most suitable means of meeting sustainable energy needs utilizing agricultural waste. In this study, briquettes were made from an indigenously designed briquetting machine for investigating coal–biomass proportion blend using coal from Dara Adam Khel, Khyber Pakhtunkhwa in Pakistan, and pomegranate/olive waste to analyze their resulting calorific value, strength, and geochemical properties. A central composite design (CCD) and response surface methodology (RSM) were employed to design the experiments and analyze the data. Regression models were developed for each biomass type, demonstrating their adequacy and reliability for further analysis and prediction. Energy Dispersive X-ray Spectroscopy (EDX) analysis provided insights into the elemental composition of the coal briquettes. Mechanical analysis was performed to assess the strength of the briquettes, with varying compositions showing different levels of strength. Optimization using a composite desirability function yielded an optimal calorific value of 6728 kJ/kg. In summary, this study underscores the viability of bio-coal briquetting as a transformative solution to alleviate energy scarcity. Repurposing agricultural waste curtails resource depletion while mitigating waste disposal challenges. The optimized calorific value aligns with eco-friendly energy initiatives, advancing a greener path toward energy security.

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Section: Experimental Designmentioning

confidence: 99%