The　current　study　aims　to　investigate　the　effects　of　thermal　radiations　in　a　porous　bulb-shaped　enclosure.　The　cavity　is　filled　with　Casson　fluid,　the　upper　highlighted　section　represents　the　hot　wall,　while　the　lower　highlighted　part　signifies　the　cold　wall,　and　the　bottom　section　corresponds　to　the　adiabatic　wall.　The　research　takes　into　account　several　key　variables　such　as　the　Hartmann　number　(varying　from　0　to　20),　Lewis　number　(ranging　from　0.1　to　10),　Rayleigh　number　(Ra　10(3)-10(5)),　Casson　fluid　parameter　(varying　from　0.1　to　10),　buoyancy　ratio　(ranging　from　0　to　2),　Darcy　number　(ranging　from　0.1　to　0.001)　and　thermal　radiation　parameter　(varying　from　0　to　5).　In　two　dimensions,　the　governing　formulation　is　written　as　a　set　of　balancing　equations　for　velocities,　pressures,　energies　and　concentrations.　The　nonlinear　governing　PDEs　are　solved　using　numerical　approach　based　on　finite　element　method　(FEM).　The　discretization　is　performed　using　the　stable　finite　element　pair　P-2/P-1.　To　analyze　the　effects　of　flow　distribution　changes,　we　graphically　display　those　using　streamlines,　isothermal　profiles　and　isoconcentration　patterns.　Information　on　kinetic　energy,　local　heat　and　mass　flux　is　also　provided　in　the　form　of　graphs　and　tables.　The　findings　suggest　that　thermal　radiation　and　porosity　factors　have　profound　impact　on　the　flow　pattern,　isothermal　and　isoconcentrating　contours.　The　study　demonstrates　the　applications　in　solar　thermal　power　conversion,　energy　deficiency　systems　and　many　other　application　of　electronics　designs.