K.Ramu and Guduru Amarender Rao 2023. Performance and Emission Analysis of a Diesel Engine Retrofitted with a Gunmetal-Based Porous Medium in the Cylinder Head. International Journal of Computer Engineering in Research Trends. 10, 5 (Jun. 2023). DOI:https://doi.org/10.22362/ijcert/2023/v10/i05/v10i0508.