fluid bed heat transfer 中文意思是什麼

fluid bed heat transfer 解釋
沸騰層熱傳遞
  • fluid : n 流體，液。 body fluid 體液。 cooling fluid 冷卻液。adj 1 流動的；流體的；液體的。2 容易[可]變動...
  • bed : n 1 床，床鋪；床位，鋪；（動物的）窩；〈比喻〉安樂窩，墳墓；床墊；睡眠；就宿。2 婚姻，夫婦關系。3...
  • heat : n 1 熱；熱力；熱度；熱量。2 體溫；發燒。3 （氣候的）高溫，暑氣。4 【冶金】熔煉的爐次；裝爐量；一...
  • transfer : n 1 移轉，轉送；調職；調任[轉學]證書；變換。2 （財產；權利等的）轉讓，讓與（證書），移轉，授受；...
  1. 3. the mathematical model for heat and mass transfer in the adsorbent bed is established, the porous of adsorbent, the flow of adsorbate in adsorbent, the characteristic of non - equilibrium adsorption are combined in the model, and a more accurate model of fluid flow in porous media - ergun model is adopted

    它綜合考慮了吸附劑的多孔介質結構，吸附質氣體在吸附劑內的流動，吸附的非平衡特性等，並且在吸附質氣體流動模型的選擇上，採用了ergun多孔介質流動模型，比常規的數學模型更全面準確地描述了吸附床傳熱傳質的動態特性。
  2. In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation

    針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用
  3. In this paper, we applied the vapor - liquid - solid three - phase circulating fluidized bed evaporator to condense glucose solution considering its advantage. in the experiment, we changed the parameters such as evaporation temperature, difference in temperature of the fluid heating and heated, liquid flux, liquid thickness and the ratio of inert particles to analyze and study this kind of equipment ' s heat transfer properties in different operational conditions

    通過改變蒸發溫度、傳熱溫差、料液流量、料液濃度以及惰性粒子的體積分率等參數，研究了其在不同操作條件下的傳熱性能，並給出了汽-液-固三相循環流化床蒸發器沸騰傳熱的數學模型，模型預測值與實驗值吻合較好。
  4. Heat and mass transfer of porous material drying in centrifugal fluid bed

    離心流化床中多孔介質乾燥的傳熱傳質研究
分享友人
分享到 Line

分享到臉書