Development and performance evaluation of paddy husk powered electricity generator

Abstract

Many agrarian countries, including Sri Lanka, generate substantial quantities of paddy husk, an underutilized agricultural byproduct with a thermal energy density commonly reported in the range of 12 – 15 MJ/kg[1]. This study examines the feasibility of converting paddy husk into a renewable energy source through a steam-based thermal power generation system, aiming to provide a sustainable solution for rural electrification and reduce reliance on conventional fossil fuels. The research aims to develop a sustainable electricity generation method utilizing paddy husk as feedstock, thereby presenting an economical and eco-friendly energy alternative. It emphasizes adding value to agricultural waste while establishing an independent power source for rural and off-grid communities. This study presents a new method for energy conversion through the direct combustion of paddy husk to produce steam, contrasting with complex gasification technologies that require extensive tar-cleaning and engine adjustments. The project emphasizes creating an integrated steam-turbine generator, evaluating its steam generation, turbine efficiency, and power output under practical conditions, offering a simpler and more durable alternative that can be locally manufactured.