Study of Thermoelectric Materials for Vessel Applications

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Project title

Code/計畫編號

MOST109-2623-E019-001-D

Translated Name/計畫中文名

研究高轉換效率之熱電材料於船舶上之應用

Project Coordinator/計畫主持人

Chun-I Wu

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Mechanical and Mechatronic Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=13376515

Year

2020

Start date/計畫起

01-01-2020

Expected Completion/計畫迄

31-12-2020

Bugetid/研究經費

790千元

ResearchField/研究領域

材料科技

熱電再生能源研究近年來取得許多關鍵技術的突破，藉由參雜物的奈米結構引入凝態溶液中，熱電材料的熱傳導率可降至比主體材料更低，藉此得以優化其熱電性質。本研究計畫研究如何利用火花電漿燒結(SPS)以控制微奈米結構的生成與尺寸，針對不同的波長進行聲子散射，藉以更進一步調控熱電材料的熱傳導率，找出降低熱傳導率的方法以提升熱電性質，本計畫預計達成優化具奈米結構的n型與p型的PbTe熱電材料(以SrTe為參雜的主要研究)，改變SPS的成型溫度、壓力與粉末尺寸，觀察微奈米結構在各種情況下的改變與熱電性質的關聯性。 Thermoelectrics has been recognized as an ideal solution for sustainable energy technology due to their ability to convert waste heat directly into electricity. The performance of thermoelectric materials is governed by the thermoelectric figure of merit, ZT = (S2σ/κ)T, where S, σ and κ are the Seebeck coefficient, the electrical conductivity and the thermal conductivity, respectively. Thermal conductivity reduction has played an important role in improving the thermoelectric figure-of-merit. Thermoelectric materials with nano- and microstructured defects can efficiently scatter phonons with various wavelength, thereby reducing the thermal conductvitiy to lower than the theoretical value. This project is using this technique to study high efficiency thermoelectric materials.

Keyword(s)

再生能源
綠色能源
熱電
廢熱發電
renewable energy
green energy
waste heat recovery
thermoelectricity

DSpace CRIS

Study of Thermoelectric Materials for Vessel Applications

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