Thermoelectric cooling of microelectronic circuits and waste heat electrical power generation in a desktop personal computer

Gould, Christopher; Shammas, N.Y.A.; Grainger, S.; Taylor, Ian

doi:10.1016/j.mseb.2010.09.010

Cited by 59 publications

(29 citation statements)

References 9 publications

(12 reference statements)

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“…Because thermoelectric materials can convert reversibly between heat and electricity, thermoelectric generators are advantageous to heat recovery from solar thermal energy and industrial waste heat [1][2][3][4][5][6][7][8]. The thermoelectric conversion efficiency is mainly determined by the dimensionless figure of merit, ZT, which is defined as ZT = α 2 σT κ −1 , where α, σ, κ, and T are the Seebeck coefficient, electrical conductivity, thermal conductivity, and absolute temperature, respectively.…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric properties of Yb-filled CoSb3 skutterudites

Park

Seo

Shin

et al. 2014

Journal of the Korean Physical Society

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Yb-filled skutterudites YbzCo4Sb12 (z = 0, 0.1, 0.2, 0.3, 0.4) were prepared by encapsulated melting and hot pressing. The filling effects of Yb on the transport and the thermoelectric properties of the skutterudites were examined. In the case of z ≥ 0.3, a secondary phase (YbSb2) was formed, indicating that the filling fraction limit of Yb was z = 0.2 -0.3. The intrinsic CoSb3 had a high positive Seebeck coefficient, but Yb-filled CoSb3 exhibited a negative Seebeck coefficient. In the case of z ≤ 0.1, the maximum absolute value of the Seebeck coefficient was | −231| μVK −1 , and in the case of z ≥ 0.2, the absolute value of the Seebeck coefficient increased with increasing temperature. The electrical conductivity increased and the Seebeck coefficient decreased with increasing Yb filling content due to the increased carrier concentration. The thermal conductivity was reduced significantly by Yb filling, mainly due to a decrease in the lattice thermal conductivity. Also, the lattice thermal conductivity decreased with increasing Yb filling content, indicating that the phonon scattering was caused by the rattling of Yb fillers in the voids of the skutterudite structure. Yb0.2Co4Sb12 showed the highest figure of merit of 1.0 at 823 K.

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Section: Introductionmentioning

confidence: 99%

Thermoelectric properties of Yb-filled CoSb3 skutterudites

Park

Seo

Shin

et al. 2014

Journal of the Korean Physical Society

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“…Their system has been able to harvest around 7 mW of power from a Pentium III processor using commercial TEG. Gould et al [6] applied micro-power generation in standard personal computer using thermoelectric module. Martínez et al [7] experimentally demonstrated TEG driven self-cooling system.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of integrated liquid cooling and thermoelectric generation for self-cooling of electronic devices

Kiflemariam

Lin

2015

International Journal of Thermal Sciences

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“…They concluded that cooling power can be improved by a factor of 5-7% when considering Thomson heat. Gould et al 6 performed TEC cooling experiments on a desktop computer and showed improved results compared to a standard cooling system. In addition to this, they combined TEC with a thermoelectric (TE) generator and obtained 4.2 mW.…”

Section: Introductionmentioning

confidence: 99%

Analytical and Numerical Studies of Heat Transfer in Nanocomposite Thermoelectric Coolers

Rabari

Mahmud

Biglarbegian

2015

Journal of Elec Materi

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Thermoelectric coolers (TEC) can produce a cooling effect (in refrigerator mode) or a heating effect (in heat pump mode) using electrical energy input. Performance characteristics of typical TECs are poor when compared to the traditional cooling system (e.g., a vapor compression system). However, nanostructuring of thermoelectric (TE) materials can generate high-performance TE materials (e.g., high Seebeck coefficient, low thermal conductivity, and high electrical conductivity), and such materials show the promise to improve the performance of TEC. The main objective of this paper is to investigate the effect of nanocomposite TE materials and surface to surrounding convection heat transfer on the thermal performance of TEC. The mathematical model developed in this paper includes Fourier heat conduction, Joule heat, Seebeck effect, Peltier effect, and Thomson effect. This model also includes temperature-dependent transport properties. Governing transport equations are solved numerically using the finite element method to identify temperature and electrical potential distributions and to calculate heat absorbed and the coefficient of performance (COP). Heat absorbed and COP are also calculated using a simplified 1D analytical solution and compared with numerically obtained results. An optimum electric current is also calculated for maximum heat absorption rate and maximum COP for fixed geometric dimensions and variable convection heat transfer coefficients. An Increase in the convection heat transfer coefficient increases the optimum electric current required for maximum heat absorption rate and maximum COP. For the materials considered, the results show that COP of TEC can be increased by approximately 13 ± 1% if nanostructured TE materials are used instead of the conventional TE materials. List of symbolsVariables A Cross-sectional area (m 2 ) C 1 A parameter (refer Eq. 9) C 2 A parameter (refer Eq. 9) D Thickness of TE leg (m) E Electric field intensity (N C À1 ) h C o nve ctio n h eat t ran s fe r c oeff ici en t (W m À2 K À1 ) I Electric current (A) J Electric current density (A m À2 ) k Thermal conductivity (W m À1 K À1 ) L Height of TE leg (m) p Perimeter (m) P Electrical power output (W) q Heat flux (W m À2 ) _ q Heat generation rate (W m À3 ) Q Heat (W) R Electrical resistance (X) T Temperature (K) W Width of TE leg (m) x Co-ordinate system (m) (

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Thermoelectric cooling of microelectronic circuits and waste heat electrical power generation in a desktop personal computer

Cited by 59 publications

References 9 publications

Thermoelectric properties of Yb-filled CoSb3 skutterudites

Thermoelectric properties of Yb-filled CoSb3 skutterudites

Numerical simulation of integrated liquid cooling and thermoelectric generation for self-cooling of electronic devices

Analytical and Numerical Studies of Heat Transfer in Nanocomposite Thermoelectric Coolers

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