lean combustion 中文意思是什麼

lean combustion 解釋
稀薄燃燒
  • lean : vi （ leaned 〈英國〉 leant）1 傾斜，傾側；躬屈，彎斜。2 倚靠；依靠，依賴。3 （思想等）傾向；偏向...
  • combustion : n. 1. 燃燒，發火，點火。2. （有機體內營養料的）氧化。3. 騷動。
  1. Mean while, the iouver concentrator structure principle is analyzed, the iouver puiverized coal concentrator is studied on the bases of both laboratory and production. lt is discovered from the experiments that the louver horizontai rich / lean combustion pulverized coal burner has advantages of simple in structure, low resistance and adjustment of pc concentration

    同時，重點分析了百葉窗濃縮器的結構原理，並在試驗臺上和現場對百葉窗煤粉濃縮器進行了大量的試驗研究，結果表明：百葉窗式水平濃淡煤粉燃燒器具有結構簡單、阻力損失小、分離調節方便等一系列優點。
  2. Investigations also show that the catalyst shows good heat resistance in the presence of water and demonstrates high capability for mitigating sox poisoning. in the end, a novel way controlling combustion is employed in a 1. 342l s. i. engine, in which lean - burn, fast burn ( tumble ) and delay ignition make the engine provide much cleaner exhaust gas than that of a conventional premixed s. i. engine

    最後綜合採用機內凈化和排氣后處理并行策略，即稀燃、快燃（滾流） 、推遲點火的可控燃燒新方案，結合分子篩稀燃催化器，在稀燃發動機典型工況下，在保證燃油經濟性較原機改善14 . 8 %時， nox的排放大幅降低。
  3. The second method of changing engine operating parameters means, in essence, operating fuel lean to increase combustion.

    第二種改變發動機工作參數的方法的用意，本質上是用貧燃料來增加燃燒。
  4. In this paper combustion performances of the single - head annular combustor with different swirler cups are investigated by experiment and numerical simulation. under different fuel - air ratios, profiles of exit temperature 、 combustion efficiency 、 lean blowout limit and pollutant emission are measured

    在相同的雙級旋流器情況下，試驗分析不同油氣比對單頭部環形燃燒室的出口溫度分佈、燃燒效率、貧油熄火油氣比以及污染物（ co _ 2 、 co和nox ）排放等燃燒性能的影響規律。
  5. Effects of different fuel - air ratios and different geometric parameters of dual - stage swirler ( such as inner diameters of the primary swirl and secondary swirl passages, outer diameters of the secondary swirl passages, vane angle of the primary and secondary swirler, the distance of the flare exit from throat etc ) on combustion performances are studied experimentally. the experimental results show that radial profiles of the outlet gas temperature 、 combustion efficiency 、 emissions of co2 、 co and nox and lean blowout are affected with different degrees by the different geometric parameters of dual - stage swirler and the arrangement of primary holes

    在不同油氣比下，不同的雙級旋流器幾何參數（例如:一級與二級旋流器出口內徑d 、葉片安裝角、二級旋流器出口外徑d 、二級旋流器的喉道到出口截面的距離l和喉道前後的圓弧半徑r以及主燃孔孔布局等）對單頭部環形燃燒室的出口溫度分佈、燃燒效率、貧油熄火油氣比以及污染物（ co _ 2 、 co和nox ）排放等燃燒性能的影響規律進行了研究。
  6. The paper introduces development and research of foreign gas engines and describes briefly lean - burn combustion, egr, structure of pre - combustion as well as application of turbocharger and miller cycle and analyzes the effect of the technologies on emission and efficiency of engines

    本文介紹了目前國外氣體機的發展技術研究現狀，並對稀燃技術、 egr技術、預燃室的結構、增壓器的採用和米勒循環的應用等技術作了簡要介紹，簡要的分析了這些技術對發動機的排放、效率的影響。
  7. Evans r l. combustion chamber design for a lean - burn si engine [ d ]. sae paper 921545

    陳澤智.火花點火沼氣發動機燃燒過程模擬與工作性能的研究[ d ] .浙江大學學位論文， 1997
  8. Main characteristic and innovative points : 1. the sensitivity analysis is first to applied in the reaction mechanism reduction of lpg combustion under premixed lean burn, that is, finding a reduced mechanism that only relates the principal component and skeletal mechanism but can produces similar predictions of detailed mechanism

    本文主要特色及創新之處如下： 1運用chemkin對化學反應機理進行簡化的能力，首次將敏感度分析法用於lpg在稀燃條件下化學機理的簡化，確定關鍵組分和主要反應，並把這個簡化機理應用到star - cd中進行計算。
  9. Lean diffusion combustion mechanism in bump combustion chamber

    燃燒室的稀擴散燃燒機理
  10. Engine, the fuel consumption decreases by about 19. 1 %. on the other hand, the fuel consumption of quasi - homogenous mixture lean combustion decreases by about 6. 5 % compared with homogenous lean mixture combustion. three - ways catalyst ( twc ) + optimizing afr technology is used to remove nox emissions in oxygen containing exhaust gas

    本研究運用三效催化器+空燃比優化控制技術，利用三效催化器能一定程度降低nox排放的特點，控制發動機在優化空燃比下工作，將稀燃後排氣中剩餘不多的nox進一步催化。
  11. The mechanism and role of the bump combustion chamber in mixture formation of lean diffusion combustion and the main parameters that influence diesel secondary impingement jet were the major objective of the investigation in this paper in order to lay the foundation of improving the design of the bump combustion chamber

    Bump燃燒室是直噴式柴油機實現hcci燃燒新概念的復合燃燒技術的關鍵。本文主要研究bump的機理，揭示bump在稀擴散燃燒混合氣形成中的作用，探索柴油撞壁射流的主要影響因素，為改進bump燃燒室設計提供依據。
  12. It is firstly found that the nox concentration increases rapidly when is less than 0. 75, which complements the staged combustion and the rich - lean combustion that are well considered currently as low nox combustion. it does not mean that the combustion must be the low nox combustion when < 1. there is a limited least value of air excess coefficient

    對目前普遍認為的分級燃燒和濃淡燃燒可以降低no _ x排放的提法給予補充，即對一次過量空氣系數有一個最小值限定，不是小於1的任何值都可以，低於最小限定值將是不利的，而且一次過量空氣系數有一個最佳值。
  13. This paper prensents the method and system providing gasoline engine with lean fuel - air, analyses the influence on the engine performance when fuel - air is thinning, and proposes the principle of controlling steady combustion on edge of unsteady combustion, which has been validated by experiments

    介紹了供給汽油機稀混合氣的方法和系統；分析了混合氣逐步變稀時對汽油機性能的影響；提出了不穩定燃燒邊緣的穩定控制理論，並為臺架實驗所證實。
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