The present experimental work is done to investigate forced convective heat transfer rate through porous material. For this study stainless steel ball of diameter 8, 12 and 16 mm are used to form test section with different porosity. The different parameters are calculated like Reynolds number, Prandtl number, porosity, convective heat transfer coefficient and plotted the effects of porosity and mass flow rate on heat transfer rate. It shows that for minimum porosity heat transfer rate increases and it depends upon mass flow rate also.