TY - GEN
T1 - Passive cooling of heat generating cylinders in parallel channels
AU - Nir, G.
AU - Dubovsky, V.
AU - Weiss, Y.
AU - Aharon, J.
AU - Ziskind, G.
AU - Letan, R.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - The objective of this paper is to study cooling by induced convection of vertical cylinders in parallel channels. The system has four vertical channels of circular cross-section, connected to shared entrance and exit horizontal ducts. One to three heat-generating cylinders are mounted inside each channel. The cylinder is 50mm in diameter and 100 mm high. It is heated from inside by a cartridge heater, installed in a drill along the cylinder axis and connected to an external power source. The study aims at finding the preferable configuration in which the maximum and mean temperature of the cylinders would be the lowest. Among the factors explored, there are various channel diameters, non-equal number of cylinders in the channels, different power inputs to the cylinders, and different entrance-exit configurations of the ducts. A laboratory-scale model is studied both experimentally and numerically. Temperature measurements are performed at various locations by fine thermocouples using a multi-channel data acquisition unit. Numerical simulations are performed for the velocity and temperature fields in the system, using the Fluent 6.0 software, accounting for both convection and radiation. The cylinders are modeled as they were built in reality: they have a heat-generating core and conducting body. Comparison of the experimental results with the numerical predictions is presented and discussed.
AB - The objective of this paper is to study cooling by induced convection of vertical cylinders in parallel channels. The system has four vertical channels of circular cross-section, connected to shared entrance and exit horizontal ducts. One to three heat-generating cylinders are mounted inside each channel. The cylinder is 50mm in diameter and 100 mm high. It is heated from inside by a cartridge heater, installed in a drill along the cylinder axis and connected to an external power source. The study aims at finding the preferable configuration in which the maximum and mean temperature of the cylinders would be the lowest. Among the factors explored, there are various channel diameters, non-equal number of cylinders in the channels, different power inputs to the cylinders, and different entrance-exit configurations of the ducts. A laboratory-scale model is studied both experimentally and numerically. Temperature measurements are performed at various locations by fine thermocouples using a multi-channel data acquisition unit. Numerical simulations are performed for the velocity and temperature fields in the system, using the Fluent 6.0 software, accounting for both convection and radiation. The cylinders are modeled as they were built in reality: they have a heat-generating core and conducting body. Comparison of the experimental results with the numerical predictions is presented and discussed.
UR - http://www.scopus.com/inward/record.url?scp=29744462797&partnerID=8YFLogxK
U2 - 10.1115/HT2005-72450
DO - 10.1115/HT2005-72450
M3 - Conference contribution
AN - SCOPUS:29744462797
SN - 0791847314
SN - 9780791847312
T3 - Proceedings of the ASME Summer Heat Transfer Conference
SP - 577
EP - 583
BT - Proceedings of the ASME Summer Heat Transfer Conference, HT 2005
T2 - 2005 ASME Summer Heat Transfer Conference, HT 2005
Y2 - 17 July 2005 through 22 July 2005
ER -