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    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/49161


    題名: 前瞻低氮氧化物合成氣燃燒器開發(I);R&D on Advanced Low Nox Syngas Burner
    作者: 施聖洋
    貢獻者: 機械工程學系
    關鍵詞: Low-NOx burner;hydrogen burner;lean premixed turbulent combustion;weak swirling turbulent jet flames;研究領域:能源工程
    日期: 2011-01-01
    上傳時間: 2012-01-17 17:49:09 (UTC+8)
    出版者: 行政院國家科學委員會
    摘要: 本計畫屬節約能源科技領域,以兩年為期擬開發具前瞻性且可使用合成氣(H2+CO)的低氮氧化物燃燒器,以達到節能、防汙和減碳的目標。因全球暖化、環境變遷和化石燃料漸缺等重大問題,各先進國家莫不已積極投入潔淨能源的開發,特別針對如何減少如火力電廠、化工廠、煉鋼廠等大量二氧化碳排放的淨煤技術最受到各方關注,而其中由先進氣化技術所產出之合成氣直接燃燒應用為淨煤技術許多關鍵技術之一。所擬開發之合成氣低氮氧化物燃燒器,可有助燃煤電廠排放氣體的減量與污染改善,亦適用於生質能及廢棄物等多元進料與多聯產製程,進而減少了對石油與天然氣的依賴。目前及未來數十年,世界主要能源的取得和應用(含電力、運輸載具、工業爐、瓦斯爐具等等),預期仍會以燃燒為首要方法(許多國家如我國和美國高達約90%),這是因為碳氫燃料每公斤的儲能密度約45百萬焦耳,是目前鋰電池近百倍,使得碳氫燃料遠比其他替代能源更具有經濟競爭力。可是,化石燃料存量有限及其所造成的負面因素,已引發了嚴重的環境問題。是故,本計畫擬採用現今國際燃燒領域中之先進燃燒技術,即貧油預混紊流燃燒,配合前瞻設計概念之弱漩渦流穩定噴流預混紊焰技術,開發具有低氮氧化物優點之前瞻燃燒器,除了繼續研發改良天然氣加氫燃燒技術外,並進一步研發合成氣燃燒器。此計畫是重要的,因使用淨煤技術氣化後合成氣之應用,有助減低燃煤對環境的衝擊,為目前國際燃燒領域重點研究之一。合成氣主要成分為氫和一氧化碳,其燃燒技術,如同氫燃燒技術已被先進國家公認是未來能源之重要技術。所擬研發之合成氣低氮氧化物燃燒器,可用於發電用之燃氣輪機和工業用之鍋爐或焚化爐等。 This two-year proposal belongs to the field of energy-saving technology aiming to develop an advanced low NOx syngas (H2+CO) burner which is important because low NOx syngas burner has several advantages on energy-saving, pollution prevention, and carbon reduction. The motivation of the present proposal comes from the fact that all developed countries have actively promoted and invested various clean energy technologies in order to confront enormous challenges from global warming and shortage of fossil fuels. One of the most attracting technologies is the clean coal utilization that aims to reduce carbon dioxide emissions from fire power plants as well as chemical and steel-refining factories. Further, one of the key clean coal technologies is the direct use of syngas derived from advanced gasification processes. The proposed low NOx syngas burner is useful not only for emission reduction and pollution improvement in the coal-fired plant but also for increasing fuel flexibility such as the usage of biomass and waste materials. Thus, it will be of help in decreasing petroleum and natural gas demands. From the past to the present and even to several decades in the future, combustion is still the major means to provide the total energy consumption in the world from the electricity power generation sector to various transportation sectors to industrial furnaces and burners. Many countries, such as Taiwan and USA, nearly 90 % of total energy consumption is provided by fossil fuels. This is because typical hydrocarbon fuels have roughly 100 times energy density (~ 45 MJ/kg) higher than that of modern lithium batteries (~ 0.5 MJ/kg) and thus fossil fuels even with prices up to US$140 per barrel are still the most competitive fuel in many aspects. However, the challenge of mankind today is the global carbon problem, especially for the need of CO2 reduction due to the global climate change. Hence, this proposal applies the advanced lean premixed turbulent combustion technology together with weakly swirling jet streams to develop a single-digit low-NOx syngas burner. This two-year proposal will be based on our already established nature gas burning technologies with hydrogen doping and the goal is to develop a single-digit low-NOx syngas (H2+CO) burner that can be applied to stationary power generation or automobile for cleaner burning having environmental advantages of CO2 reduction with very low-NOx emissions. 研究期間:10001 ~ 10012
    關聯: 財團法人國家實驗研究院科技政策研究與資訊中心
    顯示於類別:[機械工程學系] 研究計畫

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