@article{ajme20231143, author={Adiutori, Eugene F.}, title={Why q = h{ΔT}ΔT Has Been the de facto Law of Convection Heat Transfer for More Than 100 Years}, journal={American Journal of Mechanical Engineering}, volume={11}, number={4}, pages={141--142}, year={2023}, url={http://pubs.sciepub.com/ajme/11/4/3}, issn={2328-4110}, abstract={The purpose of engineering laws is to describe parametric behavior. Experiments indicate that h is a constant or a variable. The law of convection heat transfer cannot be q = hΔT because it states that h is always a constant. Since sometime near the beginning of the 20^th century, the equation q = h{ΔT}ΔT has been the de facto law of convection heat transfer because it states that h is a constant or a variable. q = h{ΔT}ΔT is NOT dimensionally homogeneous if h is a variable because the dimension of q is not equal to the dimension of h{ΔT}ΔT. q = hΔT is not acceptable because it states that h is always a constant. q = h{ΔT}ΔT is not acceptable because it is not dimensionally homogeneous if h is a variable. A new law is required that always describes behavior, and is always dimensionally homogeneous.}, doi={10.12691/ajme-11-4-3} publisher={Science and Education Publishing} }