TY - GEN
T1 - Aerodynamic and thermal investigation into axial flow fan cooling of electronic systems part II
T2 - 2001 National Heat Transfer Conference (NHTC2001)
AU - Grimes, R.
AU - Davies, M.
PY - 2001
Y1 - 2001
N2 - In part I of this paper measurements of air velocity and surface temperature were presented for the case of a populated printed circuit board situated in the inlet flow to an axial fan. In part II, the board is placed in the exit fan flow and the measurements repeated. Both the flow and the heat transfer changed dramatically. The flow here is unsteady and swirling, giving rise to significantly higher heat transfer coefficients over the whole of the board. A simple method of understanding these flows is presented to help the system designer to use them to advantage. The implications for increased system reliability, due to both the measured low component temperatures and the lower operational temperature of the fan are significant.
AB - In part I of this paper measurements of air velocity and surface temperature were presented for the case of a populated printed circuit board situated in the inlet flow to an axial fan. In part II, the board is placed in the exit fan flow and the measurements repeated. Both the flow and the heat transfer changed dramatically. The flow here is unsteady and swirling, giving rise to significantly higher heat transfer coefficients over the whole of the board. A simple method of understanding these flows is presented to help the system designer to use them to advantage. The implications for increased system reliability, due to both the measured low component temperatures and the lower operational temperature of the fan are significant.
UR - http://www.scopus.com/inward/record.url?scp=0348216508&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0348216508
SN - 0791835332
T3 - Proceedings of the National Heat Transfer Conference
SP - 131
EP - 138
BT - Proceedings of the 2001 National Heat Transfer Conference Volume 1
Y2 - 10 June 2001 through 12 June 2001
ER -