TY - JOUR
T1 - Forced-convective internal cooling of a horizontal equilateral-triangle cross-sectioned duct
AU - Leung, C. W.
AU - Probert, S. D.
PY - 1995
Y1 - 1995
N2 - An experimental determination of the steady-state forced convection from the internal surfaces of a horizontal, uniformly heated electrically, equilateral-triangle cross-sectioned duct with sharp corners has been undertaken. The average Nusselt number NuD, using the hydraulic diameter as the characteristic physical dimension, is a constant if the flow in the duct is laminar, but a function of the air's Reynolds number, when the flow is turbulent. Non-dimensional correlations, which can be used for predicting the value of the steady-state rate of convective heat transfer from such a triangular duct into the airflow, have been deduced, viz. NuD = 3·25 for laminar flows, i.e. ReD < 1450; and NuD = 0·012 ReD0·83 for turbulent flows, i.e. ReD ≥ 1450.
AB - An experimental determination of the steady-state forced convection from the internal surfaces of a horizontal, uniformly heated electrically, equilateral-triangle cross-sectioned duct with sharp corners has been undertaken. The average Nusselt number NuD, using the hydraulic diameter as the characteristic physical dimension, is a constant if the flow in the duct is laminar, but a function of the air's Reynolds number, when the flow is turbulent. Non-dimensional correlations, which can be used for predicting the value of the steady-state rate of convective heat transfer from such a triangular duct into the airflow, have been deduced, viz. NuD = 3·25 for laminar flows, i.e. ReD < 1450; and NuD = 0·012 ReD0·83 for turbulent flows, i.e. ReD ≥ 1450.
UR - https://www.scopus.com/pages/publications/0028992331
U2 - 10.1016/0306-2619(95)98801-8
DO - 10.1016/0306-2619(95)98801-8
M3 - Article
AN - SCOPUS:0028992331
SN - 0306-2619
VL - 50
SP - 313
EP - 321
JO - Applied Energy
JF - Applied Energy
IS - 4
ER -