combustion-gas flow 中文意思是什麼

combustion-gas flow 解釋
燃氣流
  • combustion : n. 1. 燃燒，發火，點火。2. （有機體內營養料的）氧化。3. 騷動。
  • gas : n （pl gases ）1 氣，氣體，氣態 〈cf fluid; solid〉 2 可燃氣，煤氣，沼氣；【礦物】瓦斯。3 【軍事...
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  1. Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing

    文摘:應用計算機模擬的方法，在不考慮燃燒的冷態情況下，研究了熱風爐燃燒室內的氣流分佈規律.在此基礎上，比較了2種不同設計方案的氣流流動特徵，尤其是研究了燃燒器空氣通道內阻流板的設置與否對空氣和煤氣的流動和混合的影響.結果表明，阻流板的設計對加強空氣和煤氣的混合有著極為重要的作用，同時也增加了空氣管道的阻力損失，在同樣的工況條件下需要提高管道系統的總壓力
  2. Abstract : the distribution of cooling air which is in the grille - brick of the inner combustion hot air stove has been simulated with three dimension turbulent mathematical model so as to find a method which is used to improve the distribution of cooling air in hot air stove. the influence of differential horizontal plates on the distribution of cooling air is discussed. the results show that original big circle round field of flow in the pillar - cavity is changed into full one - way field of flow and edges gas flow, at the same time, is increased by horizontal plates. there is a different function with horizontal plates and vertical plates. to make the uniform distribution of cooling air in the hot air stove, it is necessary that horizontal plates and vertical plates are used in a combined way

    文摘:應用紊流三維數學模型模擬內燃式熱風爐內冷風在格子磚柱中的分佈，尋求改善其分佈的途徑.討論了加設不同布置的水平導流板對氣流分佈的影響.模擬結果表明，在支柱空腔內加設水平導流板改變了原有大迴旋流場，使迴旋流變成大面積的單向流.通過在支柱空腔內加設水平導流板可以發展邊緣氣流，這恰好與加設豎直導流板的作用相反，水平導流板和豎直導流板的結合使用有望實現冷風在格子磚柱中的均勻分佈
  3. As to the simulation, three - dimensional n - s equations and two - phase flow model, in which the liquid toluene spray as discrete particles was considered, were employed to describe the turbulent combustion processes in the combustion chamber. the mass and energy transfer between the two phases were calculated by the droplet evaporation model, and the arrehnius model was used to obtain the gas chemical reaction rate. the details of 3d flow field, the distributions of temperature and compounds were obtained by solving the equations

    數值模擬方面，應用三維湍流n - s方程以及顆粒軌道模型描述了激光器燃燒室內部的噴霧兩相燃燒流動過程，兩相之間的質量、能量交換由液滴蒸發模型計算，氣相化學反應速率由arrhnius公式計算，通過耦合求解氣液兩相模型方程，模擬了燃燒室三維流場，得到了燃燒室內的溫度和組分濃度分佈。
  4. After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %

    摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定，確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒，增設煙氣含氧量分析，可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下，極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果，從而降低排煙溫度45 ，減少加熱爐排煙損失，節約了煤氣量6 %以上。
  5. The result on research is as fellow : ( 1 ) the way to rebuild gas channels in combustion chamber of pb column has been researched in order to decrease the flow resistance. the aim, which is less resistance than that at present construction, has been gained

    本論文首次通過系統狽賦，藉助伍顫桔葫榨釀斕閣塔的燃腕室翩翱劃稚殲涸浙，對鋅睬蟎辨轉以孰艙澆室內煤氣道、煙氣道的緯淋撾矯孔劃b研究。
  6. Thereby this paper puts forward four ways to reduce no, emissions : reduction of the highest combustion temperature, fuel emulsification, exhaust gas recirculation and selective catalytic reduction. according to the marpol convention, no, emissions are defined as per engine power of nox mass flow rate

    Marpol公約附則規定的no _ x的排放標準為柴油機單位制動功率排氣中no _ x的質量流量（單位： g kw ? h ） ，因此要想對被測試的柴油機的no _ x排放進行判定，必須得到排氣中no _ x的質量流量和柴油機的制動功率。
  7. In arbitrary curvilinear coordinates, the wall function is used for treating near wall regions. the influences of two different inlet gas parameter distributions and turbulent combustion models, as well as three different afterburners on turbulent combustion flow fields and wall temperature profiles are calculated. comparisons of experiment results and calculations results show that second - moment combustion model is reasonable for modeling turbulent reacting flows, inlet gas parameter distributions is more important. calculation method is reliable and can be used for the optimum design of afterburner

    數值研究三種不同幾何形狀、兩種進口氣流參數分佈、兩種紊流燃燒模型等對加力室內各氣流參數、隔熱屏和加力室筒體壁面溫度分佈的影響，計算結果與試驗數據比較表明:不同幾何形狀加力室對加力室內紊流燃燒流場的影響要比進口氣流參數分佈大些，正確給定進口氣流參數分佈較為重要，二階矩紊流燃燒模型更適用摸擬三維紊流燃燒流動，計算方法合理，編制的計算程序可靠，可供加力燃燒室優化設計用。
  8. In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction

    在研究過程中，採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統進行了綜合診斷，具體結果包括如下： （ 1 ）完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試，結果發現：鉛塔燃燒室內水平方向的煙氣溫度並非均勻，而且其溫差比上下方向的溫差更大，以及鉛塔燃燒室尾部存在co未燃燼問題； （ 2 ）為了保證鉛塔煙氣系統的正常工作，對煙道系統的阻力進行了理論計算及測試分析，結果發現：鋅精餾鉛塔煙氣系統中煙囪抽力不夠，這主要是煙道結構不合理所造成的。
  9. Great difference in pressure for two flow made pressure wave system and it help to extend the delay time for gas in chamber, which increases combustion effusion. second, to increase combustion effusion, the inlet temperature of air and gas should be enhanced in the range of heat releasing in chemical reaction. third, the first work condition is unburned absolutely and the second work condition is burnt in shear layer of inlet and the end of down wall zone in straight segment

    對于壓力差很大的兩股氣流，所形成的壓縮波系的結構可以增加燃氣駐留時間，提高燃燒穩定性;為了提高擴散燃燒的效率，在保證能放熱的化學反應溫度范圍之內，應適當提高燃氣及空氣的來流入口溫度;燃氣噴嘴應居於燃燒室軸線上，是改進超音速燃燒室結構的一種思路。
  10. In this paper, simple reacting flow model in solid - propellant ducted rocket combustor based on eddy break - up model is established. the model is used to simulate the three - dimensional combustion flowfields in an experimental motor. some factors how to affect the combustion efficiency are discussed in the paper, including air intake and gas generator nozzle

    本文基於簡單反應的旋渦分裂模型，建立了固體火箭沖壓發動機補燃室內的湍流燃燒模型，並在該模型下對某實驗發動機進行了三維數值模擬，研究了補燃室設計參數包括進氣道出口設計參數和燃氣發生器噴管設計參數對燃燒效率的影響。
  11. By carrying on experimental study to the ignition performance of the natural gas high speed burners under different conditions, the influence factors are probed such as the type of the gas source, the combustion air pressure, the gas pressure, the proportion of air and gas, gas flow and electrode to the ignition performance of natural gas high speed burner

    摘要在不同的條件下對天然氣高速燒嘴的點火性能進行了實驗研究，探討了氣源種類、助燃空氣壓力、燃氣壓力、空氣與燃氣的比例、氣體流量、點火電極等因素對天然氣高速燒嘴的點火性能的影響。
  12. The technology process : the waste, through operation stand, to be rationed into the standing majorcombustion room, being ignited by the ignition - burningmachine, upon the principal of burningthree t, fully burned in the major combustion room （ 800 - 1000 ). the remaining waste gas afterburning via flue goes into secondary combustion room for further high temperature oxidizingcombustion. the gas flow after the secondary combustion goes into the highly effective cyclonedust remover, removing the bigger granule of dust, flowing into rapid - cooling spay and washing equipment to absorb acid gas

    廢棄物經操作臺連續定量投入立式爐本全燃燒室，由點火文空燃燒機自動點火，根據三t原則在爐本體燃燒室（ 800 - 1000 ）以充分燃燒，焚燒后產生的殘余廢氣經煙道進入二次燃燒室再經高溫（ 1100 - 1200 ）氧化焚燒，經二次焚燒后的氣體進入高效旋風除塵器，除去顆粒較大的粉塵后，進入急冷塔噴淋洗滌裝置吸收酸性氣體。
  13. ( 1 ) the cfd model for the pulse combustion spray drying process. the computational fluid dynamics ( cfd ) based on the two - phase flow theory was employed in this paper, which used the standard k - e model and the particle trajectory model to simulate the gas - particle flow in the drying chamber. the momentum, heat and mass transfer regarding both gaseous and particulate phases during the spray drying inside the drying chamber was also revealed

    為解決這一難題，本文利用氣體一顆粒兩相流理論和計算流體力學（ cfd ）技術，建立了更符合實際噴霧乾燥過程的數學模型即噴霧乾燥的cfd模型，並進行了脈動燃燒噴霧乾燥過程模擬，其主要內容如下： （ 1 ）建立了脈動燃燒噴霧乾燥的cfd模型該數學模型建立在氣體一顆粒兩相流基礎之上，用標準k -模型預測乾燥室內的氣體湍流運動過程，顆粒軌道模型追蹤乾燥室內顆粒群的運動軌跡，熱質傳遞模型描述空氣和液滴的熱質傳遞過程。
  14. Numerical study on annular combustor combustion flow of a gas turbine

    燃氣輪機環形燃燒室燃燒流動的數值研究
  15. Nowadays, swirling burners have been used widely, because they can establish central recirculation bubbles which make high temperature gas flow back so as to speed up the progress of combustion of pulverized coal

    旋流燃燒器因為能夠形成中心迴流區，卷吸高溫煙氣，促進煤粉的著火等特點，在工程上已經得到了廣泛的應用。
  16. The work is mainly on numerical simulation of dense gas - solid two phase flow and the combustion and pollutant emission processes of circulating fluidized bed and w - shaped furnace applied by power plant

    本文主要對高濃度氣固兩相流和電站鍋爐中的循環流化床和w爐內的燃燒和污染物排放過程進行了較為詳細的數值模擬研究。
  17. Our work is only an attempt about the study on the dense gas - solid flow and combustion technique of cfb and w - shaped furnace. the results testify the accuracy and efficiency of the numerical simulation method ( or computer aided test method ) on the prediction and validation of the engineering flow and combustion problems

    本文的工作是對高濃度氣固多相流研究和流化床和w爐燃燒技術研究的嘗試，所取得的結果表明數值試驗方法在預測和驗證工程流動、燃燒問題方面的準確性和有效性。
  18. The method of cell modeling is used for modeling the flow, combustion, heat transfer and pollutants generation process in the furnace of 600mwpulverized coal boiler, the temperature distribution and gas species distribution inside the furnace is got by it

    應用小室模型對600mw燃煤鍋爐爐內流動、燃燒、傳熱及污染物排放進行了一維數值模擬研究，得出了爐內溫度和各個不同組分沿爐膛高度的分佈。
  19. Based on it, the performances of all kinds of supersonic ejectors are compared and the effects of variety of input parameters on the performances of supersonic ejectors are discussed. the conclusion is reached, that the design scheme of small ejecting coefficient, high ejecting mach - number, combustion - gas driving should be adopted to develop high performance, high compression - ratio prs. thirdly, the method of computational fluid dynamics is used to numerically solve the flow - field of the annular supersonic ejector with or without a second flow

    接著，推導了超聲速引射器各種一維理論模型，並應用一維理論公式分析、比較了各種超聲速引射器的性能及其變化規律，全面探討了各設計參數對超聲速引射器性能的影響，得到了高性能、大壓縮比引射器系統應該採用小引射系數、高引射馬赫數、燃氣引射、優化超聲速引射器設計方案的結論。
  20. This article has a particular research on three kind of gas / liquid coaxial nozzles for their flow performance and atomization performance under cold - flow - simulated experiment with the supply of laser doppler technology, and the measurement of the drop parameter and combustion performance under normal pressure and burning condition

    本文應用激光多普勒技術對三種氣液同軸模型噴嘴的流量特性和霧化特性進行了冷流模擬實驗研究，並在常壓燃燒條件下對其噴霧流的液滴參數和燃燒性能進行了實驗測量。
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