• 제목/요약/키워드: Bi-Te thermoelectric module

검색결과 23건 처리시간 0.024초

복합재료에 의한 열전변환 냉각소자의 개발에 관한 연구 (Experimental fabrication and analysis of thermoelectric devices)

  • 성만영;송대식;배원일
    • E2M - 전기 전자와 첨단 소재
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    • 제9권1호
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    • pp.67-75
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    • 1996
  • This paper has presented the characteristics of thermoelectric devices and the plots of thermoelectric cooling and heating as a function of currents for different temperatures. The maximum cooling and heating(.DELTA.T) for (BiSb)$\_$2/Te$\_$3/ and Bi$\_$2/(TeSe)$\_$3/ as a function of currents is about 75.deg. C, A solderable ceramic insulated thermoelectric module. Each module contains 31 thermoelectric devices. Thermoelectric material is a quaternary alloy of bismuth, tellurium, selenium, and antimony with small amounts of suitable dopants, carefully processed to produce an oriented polycrystalline ingot with superior anisotropic thermoelectric properties. Metallized ceramic plates afford maximum electrical insulation and thermal conduction. Operating temperature range is from -156.deg. C to +104.deg. C. The amount of Peltier cooling is directly proportional to the current through the sample, and the temperature gradient at the thermoelectric materials junctions will depend on the system geometry.

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BiTe계 thermoelectric module을 이용한 발전기 제작과 특성 (Manufacturing of thermoelectric generator using BiTe module)

  • 우병철;김봉서;이희웅
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 C
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    • pp.1446-1448
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    • 1997
  • TEC(Thermoelectric conversion) is direct conversion method between thermal energy and electric energy. We studied on the mechanical, electrical and thermal properties of thermoelectric module and made experimental thermoelectric generator with BiTe material.

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Bi-Te 및 Bi-Sb-Te 나노와이어로 구성된 열전소자의 형성공정 (Fabrication Process of the Thermoelectric Module Composed of the Bi-Te and the Bi-Sb-Te Nanowires)

  • 김민영;임수겸;오태성
    • 마이크로전자및패키징학회지
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    • 제15권4호
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    • pp.41-49
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    • 2008
  • n형 Bi-Te 박막과 p형 Bi-Sb-Te 박막을 전기도금법으로 형성하여 열전특성을 측정하였으며, Bi-Te 나노와이어와 Bi-Sb-Te 나노와이어의 전기도금 성장거동을 분석하였다. 알루미나 템프레이트의 200nm 직경의 나노기공 내에 전기도금으로 Bi-Te 나노와이어와 Bi-Sb-Te 나노와이어를 형성시 각기 81%와 77%의 filling 비를 나타내었다. 알루미나 템프레이트에 Bi-Te 나노와이어와 Bi-Sb-Te 나노와이어를 순차적으로 전기도금하여 열전소자를 구성하였으며, Bi-Te 나노와이어 부위의 Ni 전극과 Bi-Sb-Te 나노와이어 부위의 Ni 전극 사이에서 $15{\Omega}$의 저항이 측정되었다.

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고분자 필름의 두께변화에 따른 Bi-Te계 열전모듈의 열분포 특성 (Thermal Distribution of Bi-Te Thermoelectric Module with the thickness of Polymer Sheet)

  • 변종보;김봉서;박수동;이희웅;김영수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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    • pp.1675-1677
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    • 2005
  • In case of attaching thermoelectric module and heat source, the polymer sheet is attached on the $AL_{2}O_3$ plate, which Is cold and hot side of thermoelectric module, in order to enhance mechanical safty of the system. It is impossible to calculate the exact distribution of temperature and flow pattern of inner gap of thermoelectric module. Therefore CFD(Computational Fluid Dynamics) analysis was executed to determine the thermo-fluid phenomena and distribution by Fluent. As the result of these analysis, heat transfer was dominated by conduction and the difference of temperature was linear distribution according to the thickness of polymer sheet.

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온도차 및 부하 저항에 따른 열전모듈의 발전 특성 분석 (Experimental Study on the Power Generation of a Thermoelectric Module with Temperature Difference and Load Resistance)

  • 이공훈;김욱중;고득용
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2007년도 춘계학술대회B
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    • pp.1942-1947
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    • 2007
  • A thermoelectric module can be used for cooling or power generation. The basic requirements to achieve a significant thermoelectric performance are the same for both generators and coolers. Thermoelectric modules with $Bi_2Te_3$ materials are usually employed in the cooling applications below room temperature but it can also be used for the power generation in the similar temperature range. In the present study, the power generation with a $Bi_2Te_3$ thermoelectric module has been investigated. The temperature difference between the hot and cold sides of the module is maintained with electric heater and cold water from the circulating water bath. The result shows that the electric current generated increases with temperature difference and decreases with the load resistance. However, the voltage increases with both the temperature difference and load resistance. The electric power increases with temperature difference and it has the maximum value when the load resistance is about 4 ${\Omega}$ for a given device.

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열전발전용 Bi-Te module에서 미끄럼에 따른 열응력 완화 특성 (A Effect of Fluid-assisted Sliding on Stress Relaxation of Bi-Te Modules in Thermoelectric Generation System)

  • 서창민;우병철
    • 한국해양공학회지
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    • 제14권4호
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    • pp.62-97
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    • 2000
  • Recently the research for utilization of waste heat produced from electric power plants, casting factories, heat treating factories or commercial are being afforded by the need for energy saving. The objective of this study is to develop a thermoelectric generation system which unused energy from close-at-hand sources such as garbage incineration heat and industrial exhaust etc. into electricity. This paper a thermoelectric technology on a optimum system design method and efficiency and cost effective thermoelectric element on order to extract the maximum power output from energy conversion of waste energy. It is shown that the longitudinal stresses of module contacted with two point constrained Al tubes could be released more than those with a one-point constrained.

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열전발전용 Bi-Te Module에서 미끄럼에 따른 열응력 완화 특성 (A Characteristic of Fluid-Assisted Sliding on Stress Relaxation of Bi-Te Modules in Thermoelectric Generation System)

  • 우병철;이희웅
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제52권1호
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    • pp.12-18
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    • 2003
  • Recently the research for utilization of waste heat produced from electric power plants, casting factories, heat treating factories or commercial building are being afforded by the need for energy saving. The objective of this study is to develop a thermoelectric generation system which converts unused energy from close-at-hand sources such as garbage incineration heat and industrial exhaust etc. into electricity. This paper presents a thermoelectric technology on a optimum system design method and efficiency and cost effective thermoelectric element on order to extract the maximum power output from energy conversion of waste energy. It is shown that the longitudinal stresses of module contacted with two point constrained AI tubes could be released more than those with a one-point constrained.

열전발전용 Peltier module의 특성 측정 (Characteristics of peltier module for thermoelectric generator)

  • 우병철;이희웅;이동윤;김봉서;슈마토크
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1998년도 하계학술대회 논문집 D
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    • pp.1552-1554
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    • 1998
  • TEC(Thermoelectric conversion) is direct conversion method between thermal energy and electric energy. We studied on the mechanical, electrical and thermal properties of thermoelectric module, made experimental thermoelectric generator with BiTe material and manufactured module tester for electric-thermal energy conversion.

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$Bi_{0.5}Sb_{1.5}Te_{3}/Bi_{2}Te_{2.4}Se_{0.6}$계 박막형 열전발전 소자의 제작과 작동 특성 (Fabrication and Performance of $Bi_{0.5}Sb_{1.5}Te_{3}/Bi_{2}Te_{2.4}Se_{0.6}$ Thin Film Thermoelectric Generators)

  • 김일호;장경욱
    • 한국진공학회지
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    • 제15권2호
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    • pp.180-185
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    • 2006
  • [ $Bi_{0.5}Sb_{1.5}Te_{3}/Bi_{2}Te_{2.4}Se_{0.6}$ ]계 박막형 열전발전 소자에 의해 volt 단위의 비교적 고전압에서 microwatt 수준의 출력을 발생시킬 수 있었다. 최대 출력은 온도차와 2차 함수적인 관계가 있었고, 주어진 온도차에서 판형 모듈의 적층수에 비례하여 증가하였다. 판형 모듈의 적층수와 직렬/병렬 연결 조합의 변화에 의해 출력 전압과 전류를 조절할 수 있었다. 온도차에 대한 개회로 전압과 폐회로 전류의 변화는 직선성을 보였다. 개회로 전압은 직렬 연결의 경우 판형 모듈의 수에 의존하였지만, 병렬 연결의 경우에는 의존하지 않았다. 반면, 폐회로 전류는 직렬연결의 경우 판형 모듈의 적층수와 무관하게 일정한 값을 나타내었고, 병렬 연결의 경우 판형 모듈의 적층수에 비례하여 증가하였다.