The heat transfer of supercritical fluids is a vastly growing field, specifically to find suitable <span style="font-family:Verdana;">alternative to replace conventional R134a, which can be beneficial ...The heat transfer of supercritical fluids is a vastly growing field, specifically to find suitable <span style="font-family:Verdana;">alternative to replace conventional R134a, which can be beneficial for climate change. A </span><span style="font-family:Verdana;">considerable suggestion is R515A which possesses considerably lower global warming potential. The present simulations are designed to study supercritical fluid R515A under cooling conditions in horizontal position. The effect of pressure, mass flux, heat flux and tube diameter were considered for horizontal tube in the vicinity of pseudo critical temperature. Numeri</span><span style="font-family:Verdana;">cal investigations on heat transfer characteristics of supercritical fluid R515A were per</span><span style="font-family:Verdana;">formed using widely used shear-stress transport (SST) model. Moreover, heat transfer correlations </span><span style="font-family:Verdana;">were developed and suggested to accurately predict Nusselt number within 10% accuracy. </span><span style="font-family:Verdana;">The simulation results showed about 3.98% average absolute deviation.</span>展开更多
文摘The heat transfer of supercritical fluids is a vastly growing field, specifically to find suitable <span style="font-family:Verdana;">alternative to replace conventional R134a, which can be beneficial for climate change. A </span><span style="font-family:Verdana;">considerable suggestion is R515A which possesses considerably lower global warming potential. The present simulations are designed to study supercritical fluid R515A under cooling conditions in horizontal position. The effect of pressure, mass flux, heat flux and tube diameter were considered for horizontal tube in the vicinity of pseudo critical temperature. Numeri</span><span style="font-family:Verdana;">cal investigations on heat transfer characteristics of supercritical fluid R515A were per</span><span style="font-family:Verdana;">formed using widely used shear-stress transport (SST) model. Moreover, heat transfer correlations </span><span style="font-family:Verdana;">were developed and suggested to accurately predict Nusselt number within 10% accuracy. </span><span style="font-family:Verdana;">The simulation results showed about 3.98% average absolute deviation.</span>
