Title :
Thermoelectric energy scavenging and performance improvement in thermally constrained mobile computers
Author :
Khan, Mohammad A. A. ; Muhtaroglu, Ali
Author_Institution :
Sustainable Environ. & Energy Syst., Middle East Tech. Univ.-Northern Cyprus Campus, Guzelyurt, Turkey
Abstract :
Thermoelectric (TE) energy harvesting is investigated in this study for compact mobile computers. A suitable hotspot is identified for TE integration based on thermal modeling and characterization of a target system. Under maximum workload conditions, 0.410 mW of electrical power is thermoelectrically harvested without any notable degradation in performance. An enhancement to the system thermal design is proposed for a projected 240% improvement in harvested power and 4% improvement in CPU+GMCH thermal design power (TDP) envelop. Calculations suggest 10% increase in Seebeck efficiency of new TE materials will increase the power generation by an additional 10%, and TDP envelop by an additional 3%.
Keywords :
Seebeck effect; energy harvesting; mobile computing; portable computers; power aware computing; thermoelectric conversion; CPU+GMCH; Seebeck efficiency; TDP envelop; TE integration; TE materials; performance improvement; power 0.410 mW; power generation; system thermal design enhancement; thermal design power envelop; thermally constrained mobile computers; thermoelectric energy harvesting; thermoelectric energy scavenging; Computational modeling; Computers; Energy harvesting; Heating; Power generation; Temperature measurement; Temperature sensors; Energy Harvesting; Mobile Computing; Notebook cooling; Thermal Design Power; Thermoelectric Conversion;
Conference_Titel :
Energy Aware Computing Systems and Applications (ICEAC), 2013 4th Annual International Conference on
Conference_Location :
Istanbul
DOI :
10.1109/ICEAC.2013.6737637
