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배터리-슈퍼커패시터 하이브리드 에너지 저장시스템을 적용한 무선 헤어아이론
유재곤(Jae-Gon Yoo),김종수(Jong-Soo Kim),김남준(Nam-Jun Kim) 한국조명·전기설비학회 2020 조명·전기설비학회논문지 Vol.34 No.2
To address the shortcomings of existing wireless hair-iron, it proposes wireless hair-iron technology that applies power conversion technology and battery-supercapacitor hybrid energy storage system. Methods for solving the problem of low temperature control precision and relatively long heating time of existing wireless hair-iron are presented, and also the power conversion circuit and operation sequence for optimal operation of battery-supercapacitor hybrid system are proposed for increasing battery life and using time. It is required to verify the excellence of the proposed power conversion circuit and operation sequence through simulation and experiment, and to verify that it has a 35% level heating time and 120% using time compared to the existing hair-iron, and a temperature control error of 5% or less.
유재곤 ( Jae-gon Yoo ),이석호 ( Seok-ho Rhi ) 충북대학교 산업과학기술연구소 2023 산업과학기술연구 논문집 Vol.37 No.2
The Industrial Revolution propelled humanity's reliance on fossil fuels, but concerns about resource depletion, environmental deterioration, and climate change have spurred interest in renewable energy. Thermoelectric technology, converting waste heat into electricity, holds promise despite performance challenges. This study explores its viability by affixing modules to vehicle mufflers to capture and utilize exhaust waste heat. Employing 1-D AMESIM simulation, the research evaluates integrating thermoelectric power generation in the automotive sector. Findings indicate a 5-6% efficiency with a peak of 6.086%, dependent on temperature differences and performance indices. Attaining a 9.059% efficiency requires optimal performance indices in high-temperature zones, necessitating advanced thermoelectric components. Given inherent component performance, effective cooling for lower temperatures emerges as a viable solution. This study highlights potential enhancements in utilizing waste heat for sustainable energy, paving the way for innovative thermoelectric applications in automotive settings.