煙氣流 的英文怎麼說

中文拼音 [yānqìliú]
煙氣流 英文
fume flow
  • 煙 : Ⅰ名詞1 （物質燃燒時產生的氣體） smoke 2 （像煙的東西） mist; vapour 3 （煙草） tobacco 4 （紙煙、...
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 氣流 : 1 [氣象學] air current; airflow; wind current; airstream2 [語言學] breath氣流紡紗 open end spinni...
  1. Research on confluent local resistance of multi - power sources in the exhaust system for residential kitchen

    住宅廚房排煙氣系統多動力源合流局部阻力研究
  2. Which bring up a conclusion that the zoon model is not agree with the facts of fire experiment, hence the field model or the combined model is better for the simulation of fires in a large volume building

    本文結合火災相似模型實驗研究，對中庭建築火災過程進行了數值模擬研究，建立了火區燃燒及蔓延過程與煙氣流動過程相互耦合的氣-固兩相火災模型。
  3. It tell us : the abrasive capability of fly ash ; the similar calculation of ash erosion ; the calculation of ash erosion in the tube in turn and tube out of turn ; the reason of tube abrasion for gas flue ; the influence of air parameter for fly ash erosion ; the influence of changing temperature ; the influence of the flue gas composition, etc. next, it advances the solving measure ; reduce the flue gas velocity ; reduce the concentration of fly ash ; responsible construction : replace smooth tube with spiral tube ; use the new material of abrasion ; fuel desulfurization ; reduce so3 of flue gas ; raise flue gas temperature, making it up the dew point ; use the abrasion - resistance material to resist abrasion

    討論了飛灰磨損性能、管壁受飛灰沖蝕的近似計算、灰粒對順列管和錯列管的磨損計算、煙氣走廊引起對流管束的磨損機理、空氣動力參數對飛灰沖蝕的影響以及受熱面壁溫變化及煙氣成份對飛灰磨損的影響等問題。接著提出了解決的措施：降低平均煙氣流速；降低飛灰濃度；使用鰭片管、螺旋翅片管代替光管；選擇合適的結構及排列方式，減少煙氣中so3的含量；提高受熱面壁溫使之大於煙氣的露點溫度；採用抗腐蝕材料作受熱面等防腐蝕的措施。
  4. The author found that the stable heat source presumption or the t2 design fire is also not agree with the experimental data. the simulation of fire in an atrium has shown that the new model is more accurate to predict the fire scenarios than any other models that include a general mathematical model of fires

    該模型充分考慮了火區燃燒與蔓延情況對煙氣流動數值模擬的影響，從而可以更加準確地反映出火源釋熱率的變化等因素的影響，改善了中庭火災煙氣流動數值模擬的精度與可靠性。
  5. Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume

    運用cfd進行數字模擬，以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要，熱煙氣流特性受火源位置的影響很大，並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好，也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明，在縱向通風隧道內，熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現，火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區
  6. Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume

    文摘:運用cfd進行數字模擬，以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要，熱煙氣流特性受火源位置的影響很大，並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好，也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明，在縱向通風隧道內，熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現，火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區
  7. The calculated results are in agreement with the measured ones, indicating that according to the flow rate and composition of the exhaust gas and the mass and the carbon content of the liquid iron, the carbon content of steel bath can be dynamically determined ; with the aid of thermodynamic equilibrium analysis, the dynamic variation of temperature of the steel bath can be forecasted from the dynamic carbon content and the data from the exhaust gas analysis system

    該模型計算結果與檢測結果吻合較好，這表明：通過煙氣流量、成分及鐵水質量和初始碳含量可動態地確定熔池中的碳含量；以動態確定的碳含量為基礎，結合爐氣分析數據，再經熱力學平衡分析，可預測熔池溫度的動態變化。
  8. Based on the analysis of the variation law of smoke flow in subway platform fire, a concept about critical ventilation speed from platform to concourse was presented

    在分析了地鐵站臺火災時煙氣流場變化規律的基礎上，提出了臨界通風速度的概念。
  9. Gas flow in a magnesium reduction furnace was numerically simulated with the comprehensive cfx software, and the effect of the gas flow on heat transfer process in the magnesium reduction furnace was studied

    摘要採用cfx軟體對皮江法鎂還原爐內的煙氣流動進行數學建模和模擬計算，研究鎂還原爐內的煙氣流動對爐子傳熱過程的影響情況。
  10. Study of fire smoke flow characteristics of horizontal tunnel using longitudinal ventilation

    縱向通風水平隧道火災煙氣流動特性研究
  11. Taking some tubular air pre - heater used in one boiler whose capacity is 130 t / h as an example, new blue print with inner trachea is completed by means of computer program. several key design variables may be changed, such as diameter of pipe and velocity of flow of gas. these cases have been considered, and their results have also been compared with each other

    比較了幾個重要的設計變量，如外管徑、煙氣流速等參數變化時，總傳熱系數和空預器本體管子總重量，阻力損失以及最低管壁溫度等幾個重要設計結果的變化趨勢，對內螺紋管空氣預熱器的設計具有借鑒意義；其間還分析了內螺紋管與光管在設計時的不同之處；最後，初步分析了內螺紋管的優化設計問題，提出了一些建議。
  12. There will appear a very uneven flow field, and appear a very big velocity magnitude distribution and ash concentration distribution near back wall. thus, the velocity magnitude is far bigger than that of optimal design velocity magnitude, which will lead to serious wear and tear in metal face of heater. especially, because of curve structure in front of heat pipe air preheater, there is more serious wear and tear

    由於靠近豎井后墻面的煙氣流速很大，飛灰濃度也較大，斷面速度分佈的最大速度大於最佳設計速度的2 - 3倍，這樣將造成受熱面的嚴重磨損，特別是熱管空氣預熱器前端煙道的幾何結構有一定的轉角，更增加了磨損的程度。
  13. The testing methods of combustibles heat release rate based on mass 1oss rate is also introduced, the experimental figures and results are analysed in this paper

    火源熱釋放速率的大小對於火災的溫度分佈及煙氣流動的影響較大。
  14. Numerical simulation for smoke flow of the tunnel fire

    隧道火災煙氣流動的數值模擬
  15. Flow type of smoke fluid is turbulent gas - particle two - phase flow in rear smoke channel of power station boiler

    在現行的電站鍋爐中，尾部煙道內的煙氣流動是典型的湍流氣固兩相流動。
  16. Independent gas - fired convection heaters incorporating a fan to assist transportation of combustion air and or flue gases ; german version en 1266 : 2002 a1 : 2005

    用電扇助燃燒空氣或煙氣流動的獨立式燃氣對流加熱器
  17. The importance of fire hazard and smoke control are presented in the thesis ; design for fire protection of underground commercial street in our country is introduced. the present research of smoke movement and smoke control at home and broad is summed up. the numerical simulation of smoke control is also discussed in this thesis

    本文闡述了地下商業建築火災的危害和控制煙氣的重要性;介紹了我國地下商業街的防火設計概況以及地下商業街的防護對策;綜述了國內外建築火災煙氣流動與控制的研究現狀;討論了煙氣控制的計算機模擬。
  18. This thesis analyses smoke movement and smoke control in two fire protection district including a night club and a street district in an underground commercial street in chongqing, with its areas of the fire protection and smoke district exceed the code, using cfd software phoenics and fds program which is implored by nist

    以重慶某地下商業街性能化防火設計工程為背景，採用國際上通用的phoenics計算流體力學軟體和美國nist開發的fds程序模擬研究了該地下商業建築地下商業街區和夜總會兩個防火分區的煙氣流動規律，並討論了中庭的煙氣控制。
  19. Underground building with its closed, exits lacked, the people density being large, the flow direction of smoke and the spread direction of fire are consistent in the evacuation routes. fires in the underground building are much danger than over ground building. the hazards of smoke are especially strict in underground building, so smoke control in the underground building has becoming the focus

    地下商業街由於其封閉性強，與地面直接連通的出入口少，內部通道的人流密度大，火勢蔓延的方向和煙氣流動的方向與人員疏散的方向相一致，因此一旦發生火災將產生比地上建築更為嚴重的後果，火災時煙氣危害將更為嚴峻，因此地下商業建築的煙氣控制研究越來越受到人們的關注。
  20. Analyzing on the choice of smoke flow speed and the heated area ash and wear

    淺析煙氣流速的選擇與受熱面積灰和磨損
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