A Computational Study of Dielectric Properties of Coconut Shell Powder and Coconut Shell-Activated Carbon and Organic Soil

This study investigates the dielectric properties of artificial soil mixtures created using Coconut Shell Powder (CSP), Coconut Shell-Activated Carbon (CSAC), and Organic Soil. CSP, known for its lightweight and excellent water retention capacity, was combined with CSAC, renowned for its superior adsorption properties and enhanced conductivity. Organic Soil, rich in nutrients, served as a base material for improving soil texture and supporting plant growth. Three mixtures were prepared in ratios of 50% CSP, 30% CSAC, and 20% Organic Soil; 60% CSP, 20% CSAC, and 20% Organic Soil; and 40% CSP, 40% CSAC, and 20% Organic Soil. The dielectric constant, dielectric loss factor, loss tangent, conductivity, and skin depth were analyzed using Lichtenecker's logarithmic mixture model and MATLAB simulations. Results revealed that the mixture with 50% CSP, 30% CSAC, and 20% Organic Soil exhibited the highest dielectric constant and skin depth, indicating its potential for soil moisture sensing, energy storage, and electromagnetic shielding applications. This innovative approach highlights the benefits of CSP and CSAC in artificial soil development for sustainable agriculture and urban greening.