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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/11262


    Title: 利用燃燒調整技術降低燃油鍋爐氮氧化物之排放
    Reduction of NOx emission from an oil-fired boiler via combustion tuning technology
    Authors: 吳庭年;Ting-Nien Wu
    侯順雄;Shuhn-Shyurng Hou
    Contributor: 環境工程系
    機械工程系
    Keywords: 氮氧化物
    燃燒調整
    鍋爐效率
    過剩空氣
    NOx
    Combustion tuning
    Boiler efficiency
    Excess air
    Date: 2004-12
    Issue Date: 2010-11-08 09:59:45 (UTC+8)
    Publisher: 崑山科技大學
    Abstract: 本研究之目的在於探討燃燒調整技術對降低燃油鍋爐氮氧化物排放的影響。燃燒調
    整技術之原理為利用降低燃燒場中的空燃比,以減少氧和氮在高溫反應結合成氮氧化物
    的機會,進而降低氮氧化物的排放。其優點為不需增加額外的設備,且同時可以提升鍋
    爐的整體效率。燃燒調整技術的操作方法為在固定空氣或燃料供給量兩者其中一的情況
    下,改變另一個供給量,以達到低過剩氧(low excess oxygen)燃燒的操作條件。實驗
    中將觀察火焰穩定性、火焰型態、火焰顏色變化和煙囪排放黑煙的情形,同時量測煙道
    氣中CO, CO2, O2 和NOx 的排放濃度,並利用熱損失法計算鍋爐效率。研究結果顯示,
    藉由調整空氣或燃料供給量,進而提供適當的過剩氧量進行燃燒過程,NOx 排放的減量
    最高可達30%以上而鍋爐效率最高亦可提升8%以上。因此,燃燒調整法為一有效的NOx
    減量技術,不僅降低了NOx 的排放,同時亦提升鍋爐效率,進一步達到節省能源和促進
    溫室氣體(CO2) 的減量。
    The objective of this study was to demonstrate a case study of NOx reduction from an
    industrial fuel oil boiler by using combustion tuning technique. The effect of low excess
    oxygen supply on NOx emission as well as boiler efficiency was examined under various
    conditions of boiler operation. It was found that at a fixed boiler load, a decrease in excess air
    (oxygen) leads to a reduction in NOx emission and an increase in boiler efficiency. In
    comparison with the original operating conditions, the demo boiler can perform the reduction
    of NOx emission up to 30% and the improvement of boiler efficiency reaching 8% or above.
    Once excess air supply is limited, CO2 emission from the boiler can be diminished.
    Meanwhile, the thermal efficiency of the boiler is enhanced and the fuel consumption of the
    boiler is reduced. Therefore, it is essential but important to limit excess air supply of the
    boiler unit for achieving the satisfactory performance on environmental aspects.
    Relation: 崑山科技大學學報第一卷‧第一期
    Appears in Collections:[崑山科技大學學報] 第1期

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