TY - JOUR
T1 - Evaluating Thermoelectric Power Generation Device Performance Using a Rectangular Microchannel Heat Sink
AU - Kolaei, Alireza Rezania
AU - Rosendahl, Lasse
PY - 2011
Y1 - 2011
N2 - In this work, a microchannel heat sink is applied to a thermoelectric power generation (TEG) device and compared with a traditional heat sink. The advantages and disadvantages of using each heat sink in a TEG device are evaluated. The microchannel hydraulic diameter is 5.33 x 10-4 m and that of the macrochannel is 2.13 x 10-3 m. Pressure drops and heat removed in the micro heat sink configuration are obtained for six different mass flow rates for the laminar and turbulent fluid flow regimes. By computationally applying a constant temperature difference between the hot and cold sides of the TEG, the fluid and thermal parameters are considered for both laminar and turbulent regimes in the channels. Furthermore, using the temperature difference through each TEG, the system efficiency is calculated. The results show that the microchannel heat sink gives a higher pressure drop, but the heat flow across the TEG device and the mass flow rate needed to provide the same generated power are less than for the macrochannel heat sink.
AB - In this work, a microchannel heat sink is applied to a thermoelectric power generation (TEG) device and compared with a traditional heat sink. The advantages and disadvantages of using each heat sink in a TEG device are evaluated. The microchannel hydraulic diameter is 5.33 x 10-4 m and that of the macrochannel is 2.13 x 10-3 m. Pressure drops and heat removed in the micro heat sink configuration are obtained for six different mass flow rates for the laminar and turbulent fluid flow regimes. By computationally applying a constant temperature difference between the hot and cold sides of the TEG, the fluid and thermal parameters are considered for both laminar and turbulent regimes in the channels. Furthermore, using the temperature difference through each TEG, the system efficiency is calculated. The results show that the microchannel heat sink gives a higher pressure drop, but the heat flow across the TEG device and the mass flow rate needed to provide the same generated power are less than for the macrochannel heat sink.
KW - Thermoelectric power generation device
KW - Microchannel heat
KW - Turbulent and laminar flows
KW - Modeling
KW - Pressure drop
U2 - 10.1007/s11664-011-1622-0
DO - 10.1007/s11664-011-1622-0
M3 - Journal article
SN - 0361-5235
VL - 40
SP - 481
EP - 488
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
IS - 5
ER -