air change coefficient 中文意思是什麼

air change coefficient 解釋
空氣交換系數
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  • change : vt 1 改變，變更，變換，變革。2 交換；兌換；把（大票等）換成零錢；把（支票等）兌成現金。3 換（車、...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. Through the analysis and studying of this subject, we can make conclusion as followed : during the whole heating season, the change law of the energy consumption of the thermal bridge is with the change law of the meteorological condition inside and outside the room : when airs temperatures indoor is steady, thermal bridge energy consumption increases with reducing of air temperature outside the room, reduce oppositely. the different position and the different structure patterns of the thermal bridges, even under the same meteorological condition inside and outside of the room, energy consumption of the building is different, and impact on heating energy consumption is different, this is mainly caused by the difference of the constructs thermal bridge and different influence in term of out wall, which lead to total mean heat - transfer coefficient different, when the heat - transfer coefficient is relatively small of outer wall, the impact of wall body is more obvious on heat - transfer coefficient of the thermal bridge

    然後確立了在節能建築中熱橋耗熱量與室內外氣象參數和熱橋構造型式的關系，分析與研究並得出：在整個採暖季節中，熱橋的能耗隨著室內外氣象條件的變化規律是：在室內空氣溫度一定時，熱橋能耗隨著室外空氣溫度的降低而增大，相反減小；不同部位的熱橋，其構造型式不同，即使在相同的室內外氣象條件下，產生的能耗也是不同的，並且對採暖能耗的影響也不同，這主要是由於不同構造的熱橋對外墻的總平均傳熱系數的影響不同所造成的，並且當外墻主體的傳熱系數較小時，熱橋對墻體的傳熱系數的影響更加明顯。
  2. Abstract : in the internal circulating fluidized bed, there exist the moving zone, fluidizing zone and heat transferring zone with different fluidized air velocities. the convection heat transfer coefficient of immersed tube in the heat transferring zone is impacted by the velocity of the moving zone nearby and its data and change trend are obviously different with those of the common bubbling bed. the maximum heat transfer coefficient is evidently higher than that of the bubbling bed. as the bed materials have not been fluidized in the heat transfer zone, the coefficient has increased highly. the curve of that changes gently, feasilble to control the combustion intensity in the fluidizing zone

    文摘:垃圾焚燒系統中，內旋流流化床存在不同布風速度的移動區、流動區和換熱區，處于換熱區的埋管的對流換熱系數受附近流動區氣流參數的影響，其變化趨勢及數值大小與普通鼓泡型流化床之間有明顯不同：最大的對流換熱系數明顯高於鼓泡床；換熱區尚未流化時，對流換熱系數已經大幅提高；整條換熱曲線的變化比較平緩，易於流化床濃相床內換熱。
  3. The change of transformer ’ s output voltage with coupling coefficient is analyzed. the calculated formulas for parameters of air - core and part - magnetic - core pulse transformer are deduced based on electromagnetic theory. comparing with past formulas for calculated the parameters of the transformer, this formulas is more accurate to reckon the parameters of transformer

    首先從理論上分析了提高耦合系數對變壓器輸出電壓的影響，推導了高功率帶繞式空芯和部分磁芯脈沖變壓器的電感及耦合系數的計算公式，並與已有的方法進行比較，經實驗驗證，本文推導的方法能夠較準確地計算帶繞式空芯脈沖變壓器的參數。
  4. The influence on the electromagnetic parameters, by the change of air ply, permanment magnet length and the magnetic pole arc coefficient, are calculated by the ansys software. the optimum parameter of the magnetic pole is obtained by solving the magnetic field

    運用有限元分析軟體ansys分析了通過改變電機極弧系數、磁鋼厚度和氣隙厚度對電機磁場的影響，以電機性能和磁鋼利用率為目標對這些參數進行了優化。
  5. The result indicates that when the air content of the concrete changes from 1 to 4 percent, the polarized resistance of the identical flow electricity time increases along with the increment of the air content, the corrosion current density reduces along with the increment of air content, the chloride ion diffusion coefficient reduces with the increment of air content ; when air content changes from 4 to 6 percent, the rule of the change of the polarized resistance and corrosion current density happens to be the opposite, the diffusion coefficient of the chloride ion increases along with the increment of air content ; when the air content is 4 percent, the rust - resisting property of concrete is best, and so is the impermeability of the concrete

    試驗結果表明，混凝土的含氣量在1 . 9 % ~ 4 . 2 %變化時，極化電阻隨含氣量的增大而增大，腐蝕電流密度隨含氣量的增大而減小， cl -擴散系數隨含氣量的增大而減小;當含氣量在4 . 2 % ~ 6 . 4 %變化時，極化電阻、腐蝕電流密度和cl -擴散系數的變化規律則相反;當含氣量為4 . 2 %時，抗鋼筋銹蝕性能最佳，抗滲性最好。 cl -擴散系數與鋼筋銹蝕參數在一定程度上有著良好的相關性，抗滲性的結果較好地反映了混凝土中鋼筋銹蝕的程度，可以用cl -擴散系數評價引氣混凝土的抗鋼筋銹蝕性能。
分享友人
分享到 Line

分享到臉書