Self-Powered Thermoelectric based Cooling system for LCD panel

Goh Siew Yun, Kok Swee Leong

Abstract


Thermoelectric (TE) module converts heat energy into electrical energy where temperature gradient is applied on hot and cold surfaces of the module. Generally, large electronic system or electronic display generates heat which dissipates via the surface of the device which may affect the functionality and lifetime of the systems or devices. Therefore, TE module can be used to utilize the heat and converts it into useful electrical energy. In this paper, TE module will be used to power cooling fan as a self-powered system. Firstly, heat dissipated from an 85 inches Thin-film-transistor liquid-crystal display (TFT LCD) is characterized, which is mainly from the power board of LCD panel. There are three power board are used in the LCD panel. The highest temperature of the power boards of LCD panel are 72.7°C, 68°C, and 38.3°C respectively. After that, heater is used to simulate the heat dissipated for the LCD panel. There are 4 TE modules were used in the lab experiment. TE modules are stacked with each other and the output of each TE modules are connected in series. TE modules are placed between heater and heat sink to generate electrical energy. The open circuit voltage output is 2.8v and the power output is 0.24W. After that, the output will be boosted up by using DC to DC converter. The output voltage obtain is proven to be enough to power up the cooling fan. The operation of the cooling fan depends on the temperature gradient between the heater and heat sink. Therefore, cooling fan will turn ON when it is heating up, and it will turn OFF when it is cooling down.

Keywords


Heat Energy; Seebeck Effect; Temperature Gradient; TFT-LCD Panel; Thermal Analysis.

Full Text:

PDF

References


A.K.Ali Mohammed, S.L.Kok, and K.T.Lau “Impact Based Piezoelectric Energy Harvesting: Effect of Single Step’s Force and Velocity,” Journal of Telecommunication Electronic and Computer Engineering., vol. 8, no. 5, Aug. 2016, pp. 125-129.

Y.J.Bong and S.L.Kok “Parametric Studies on Resonance Frequency Variation for Piezoelectric Energy Harvesting With Varying Proof Mass and Cantilever Length,” Journal of Telecommunication Electronic and Computer Engineering., vol. 8, no. 5, Aug. 2016, pp. 119-123.

M.Kishi, H.Nemoto, T.Hamao, M.Yamamoto, S.Sudou, M.Mandai and S.Yamamoto, “Micro-Thermoelectric Module and Their Application to Wristwatches as an Energy Source,” in 18 th International Conference, USA, 1999, pp. 301-307.

X.Lu and S.H.Yang, “Thermal Energy Harvesting for WSNs,” in 2010 IEEE International Conference on Systems, Man and Cybernetics, Turkey, 2010, pp. 3045-3052.

M.Risha, P.Rajendra, and K.V.Virendra, “Design and Testing of Thermoelectric Generator embedded Clean Forced Draft Biomass Cookstove,” in 2015 IEEE 15 th International Conference on Environment and Electrical Engineering (EEEIC), Italy, 2015, pp. 95-100.

B.K.Rajeh and B.Kiran “Development of Prototype for Waste Heat Enegry Recovery from Thermoelectric System at Godrej Vikhroli Plant,” in 2015 International Conference on Nascent Technologies in the Engineering Field , India, 2015, pp. 1-6.

F.Jaumot, “Thermoelectric effect,” Proceedings of the IRE, vol. 3, pp. 538-553, 1958.

C.C.Law, W.Herman and P.L.Leow, “A charge pump-based power conditioning circuit for low powered thermoelectric generator (TEG),” in 2015 10 th Asian Control Conference, Malaysia, 2015, pp. 1-6.

I.I.Basel and H.A.Wael, “Thermoelectric Power Generation Using Waste-Heat Energy as an Alternative Green Technology,” in Recent Patents on Electrical Engineering 2009, 2008, pp. 28-29.

P. Dziurdzia, “Modelling and Simulation of Thermoelectric energy harvesting processes,” in Sustainable Energy Harvesting Technologies – Past, Present and Future, Cracow: AGH University of Science and Technology, 2011, pp 109-116.


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

ISSN: 2180-1843

eISSN: 2289-8131