
[熱] 不完全燃燒
Volatile organic compounds are created from incomplete combustion and reach the atmosphere through fuel evaporation.
揮發性有機化合物來自不完全燃燒,并經由燃油蒸發到達大氣。
A colorless, odorless, highly poisonous gas, CO, formed by the incomplete combustion of carbon or a carbonaceous material, such as gasoline.
一種無色、無味、毒性大的氣體,CO,由于碳或含碳物質如汽油的不完全燃燒而形成。
Poor fuel quality. Incomplete combustion and lack of sealing between piston and cylinder wall or badly losing valves. Possibly incorrect engine timing / set up.
燃油品質差,不完全燃燒和活塞與氣缸壁之間的密封性差。還有可能不正确的發動機正時/設置。
One of the important reasons is the incomplete combustion of coal in new dry cement kiln system.
煤的燃燒不完全是導緻新型幹法水泥窯尾系統粘結堵塞的重要原因之一。
The fat of fish and meat incomplete combustion, will produce a large number of V-methyl derivatives of ammonia, which is a strength of more than a carcinogen aflatoxin.
魚和肉裡的脂肪不完全燃燒,會産生大量的V—氨甲基衍生物,這是一種強度超過了************的緻癌物。
The results show that it is practicable to determine the firing atmosphere of copper red glaze by incomplete combustion theory.
結果表明:用不完全燃燒理論确定銅紅釉燒成氣氛是切實可行的;
By lowering the burners correctly, we have properly solved the problem of incomplete combustion of coal powder, while the hight of chamber of boiler isn't increased.
介紹了在不增加爐膛高度的情況下,通過適當下移燃燒器,較好地解決了煤粉在爐内不完全燃燒的經驗。
Carbon black made by incomplete combustion or thermal decomposition of natural gas or other hydrocarbons in a furnace.
天然氣或其他烴類在爐内不完全燃燒或熱分解而生成的炭黑。
The smoke from incomplete combustion of biomass, a kind of fuel widely used in rural area, is one of the main indoor air pollutants.
生物燃料是廣大農村地區普遍使用的生活燃料,其不完全燃燒所釋放出的煙氣是室内空氣污染的主要來源之一。
However, Black carbon was produced from the incomplete combustion of fossil fuels and biomass, structurally rigid, physically condensed, and less polar than humic acid and kerogen.
碳黑來源于化石燃料和生物體的不完全燃燒,具有更緻密的結構,對有機質的非均質性影響很大。
The influence of calorific value of coal and carbon-content of cinder on the heat loss from solid incomplete combustion of the boiler were analysed in the paper.
分析了燃煤發熱量和爐渣含碳量變化對鍋爐固體不完全燃燒熱損失的影響,推導出在其他熱損失不變的前提下固體不完全燃燒熱損失對鍋爐熱平衡效率的影響。
The theory of incomplete combustion is applied in the study of the firing atmosphere for the production of copper red glaze, which calculation steps are derived in every detail and particular.
在銅紅釉燒成氣氛的研究中,應用了不完全燃燒理論,詳細推導了其計算過程。
The reason may be that ions and ion mission in incomplete combustion flame was affected by magnetic field.
這是固定磁場對火焰中沒有完全燃燒的離子和離子團作用的結果。
The exhaust pipe influences air supply and smoke exhaust, that can induce incomplete combustion and efficiency decline.
排煙管的設計安裝不當将影響空氣的供給,從而引起燃燒不完全和火焰拉長現象,導緻熱效率下降。
MSW contains a large number of plastic products, chloride, etc. , in the process of incomplete combustion of garbage and other substances combine to form dioxins.
生活垃圾中含有大量塑料制品、氯化物等,在垃圾不完全燃燒過程與其它物質化合生成二惡英。
These reactions increase the probability of incomplete combustion and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere.
這些反應增加了不完全燃燒得可能性并且易于放出未燃燒的、易起光化反應的碳氫化合物釋放到大氣中。
The result shows that after cold start combustion in the cylinder is unstable and incomplete combustion or misfire exits. There is much difference between cylinders in combustion stability.
結果表明 :汽油機冷起動後 ,缸内處于不穩定的燃燒狀态 ,出現不完全燃燒或失火 ,并且各缸間的燃燒穩定性相差很大。
Q4 - solid incomplete combustion heat loss.
固體不完全燃燒熱損失。
Hazardous combustion products: Incomplete combustion will produce carbon monoxide.
有害燃燒産物:不完全燃燒會産生一氧化碳。
The main PAHs contaminant source in Jinghai County wasthe production of incomplete combustion of fossil fuels which were transported over long distances by atmosphere movement.
靜海縣土壤中的主要污染物為遠距離遷移而來的化石燃料的燃燒産物。
Because ***sel fuel's incomplete combustion can pollute environment, it is getting more and more attention of people.
由于柴油燃燒不完全造成的環境污染,越來越受到人們的關注。
During incomplete combustion some of the hydrocarbon fuel is cracked.
在不完全的燃燒中,一些烴燃料裂解。
The coal (or coke) under the condition of the incomplete combustion can get occurrence boiler gas;
把煤(或焦炭)在不完全條件下燃燒可得到發生爐煤氣;
Fuel-efficient: fuel system cleaner, oil products increased atomization, incomplete combustion gas mixture, to maximize power.
省油:燃油系統清潔,油品的霧化程度提高,混合氣完全燃燒,功率達到最大化。
|imperfect combustion;[熱]不完全燃燒
不完全燃燒(Incomplete Combustion)是指燃料在氧氣供應不足的條件下發生的燃燒反應,其産物不僅包括二氧化碳和水,還會生成一氧化碳(CO)、碳氫化合物(HC)或碳顆粒(如煙塵)等有害物質。這一過程常見于内燃機、工業燃燒設備或家庭取暖場景中。
化學反應機制
以甲烷(CH₄)不完全燃燒為例,反應方程式可表示為:
$$text{CH₄} + frac{3}{2}text{O₂} rightarrow text{CO} + 2text{H₂O}$$
相較于完全燃燒(生成CO₂和H₂O),不完全燃燒會釋放未完全氧化的中間産物。
環境與健康風險
根據世界衛生組織(WHO)研究,一氧化碳會降低血液攜氧能力,導緻頭痛甚至窒息。碳顆粒則加劇霧霾,影響空氣質量。
能源效率下降
美國能源部數據顯示,不完全燃燒會減少燃料的能量利用率。例如,燃氣鍋爐若燃燒不充分,熱效率可能降低10%-15%。
在汽車發動機中,空燃比控制不當易引發不完全燃燒,現代車輛通過氧傳感器實時調節燃料噴射量以優化燃燒效率。工業領域則采用催化轉化器将CO進一步氧化為CO₂,減少污染物排放。
Incomplete Combustion(不完全燃燒) 是指燃料在氧氣不足的條件下發生的燃燒反應,導緻生成一氧化碳(CO)、碳顆粒(如煙灰)或其他未完全氧化的産物,而非完全燃燒後的二氧化碳(CO₂)和水(H₂O)。以下是詳細解釋:
完全燃燒:
$$ text{CH}_4 + 2text{O}_2 rightarrow text{CO}_2 + 2text{H}_2text{O} $$
産物為CO₂和H₂O,釋放最大能量。
不完全燃燒:
$$ text{CH}_4 + 1.5text{O}_2 rightarrow text{CO} + 2text{H}_2text{O} $$
生成CO和H₂O,能量釋放較少。
預防措施:優化燃燒設備、增加氧氣供應、使用催化劑(如汽車三元催化器)促進完全氧化。
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