TY - GEN
T1 - Pin-fin heat sink with horizontal base and blocked edges
AU - Sahray, D.
AU - Shmueli, H.
AU - Segal, N.
AU - Ziskind, G.
AU - Letan, R.
PY - 2009/9/21
Y1 - 2009/9/21
N2 - In the present work, horizontal-base pin fin heat sinks exposed to free convection in air are studied. They are made of aluminum, and there is no contact resistance between the base and the fins. For the same base dimensions the fin height and pitch vary. The fins have a constant square cross-section. The edges of the sink are blocked: the surrounding insulation is flush with the fin tips. The effect of fin height and pitch on the performance of the sink is studied experimentally and numerically. In the experiments, the heat sinks are heated using foil electrical heaters. The heat input is set, and temperatures of the base and fins are measured. In the corresponding numerical study, the sinks and their environment are modeled using the Fluent 6 software. The results show that heat transfer enhancement due to the fins is not monotonic. The differences between sparsely and densely populated sinks are analyzed for various fin heights. Also assessed are effects of the blocked edges as compared to the previously studied cases where the sink edges were exposed to the surroundings.
AB - In the present work, horizontal-base pin fin heat sinks exposed to free convection in air are studied. They are made of aluminum, and there is no contact resistance between the base and the fins. For the same base dimensions the fin height and pitch vary. The fins have a constant square cross-section. The edges of the sink are blocked: the surrounding insulation is flush with the fin tips. The effect of fin height and pitch on the performance of the sink is studied experimentally and numerically. In the experiments, the heat sinks are heated using foil electrical heaters. The heat input is set, and temperatures of the base and fins are measured. In the corresponding numerical study, the sinks and their environment are modeled using the Fluent 6 software. The results show that heat transfer enhancement due to the fins is not monotonic. The differences between sparsely and densely populated sinks are analyzed for various fin heights. Also assessed are effects of the blocked edges as compared to the previously studied cases where the sink edges were exposed to the surroundings.
UR - http://www.scopus.com/inward/record.url?scp=70349111914&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:70349111914
SN - 9780791848487
T3 - 2008 Proceedings of the ASME Summer Heat Transfer Conference, HT 2008
SP - 693
EP - 698
BT - 2008 Proceedings of the ASME Summer Heat Transfer Conference, HT 2008
T2 - 2008 ASME Summer Heat Transfer Conference, HT 2008
Y2 - 10 August 2008 through 14 August 2008
ER -