convection heating造句
例句與造句
- The model can be made into difference equation of the temperature field that can be used to simulate calculation ; then we can get the set of edge point , and we can have the function of the fire line , and we can also have the burned area , the length of fire line and the space of fire area ; it also come to the conclusion that the main factor of forest fire is convection heat transfer
經差分處理，得到進行模擬計算的一組溫度場計算方程；由邊界點條件，求出邊界點的集合后，擬合得出火線函數，積分后可得到時刻火場的過火總面積、火線長度和火場形狀，同時進一步證實了對流傳熱方式是影響林火蔓延的主要因素。 - 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(tǒng)中，內旋流流化床存在不同布風速度的移動區(qū)、流動區(qū)和換熱區(qū)，處于換熱區(qū)的埋管的對流換熱系數受附近流動區(qū)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于鼓泡床；換熱區(qū)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，易于流化床濃相床內換熱。 - Based on the review , the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters . we firstly analyzed the fully developed fluid flow and heat transfer , mixed convection heat transfer , the development of flow and heat transfer in the inlet in different cross section ( circular , elliptical , annular and rectangular crossection ) . the variations of the secondary flow , axial velocity , distribution of temperature , the friction force on the wall , the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統(tǒng)下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面(圓截面、橢圓截面、環(huán)形截面、矩形截面)旋轉曲線管道內充分發(fā)展流動的流動結構和傳熱特性(包括耦合對流傳熱特性)以及旋轉曲線管道開口段發(fā)展流動的流動結構和換熱特性進行了系統(tǒng)的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分布、二次流結構、溫度分布、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創(chuàng)新性成果。 - According to thermal comfort theory , adopting radiation directly acting to human ' s body , people can also feel comfortable even if indoor air temperature is relatively higher in summer and relatively lower in winter than that of convection heat - supply which means that it is evident energy - saving as to the traditional convection heat transfer
根據熱舒適指標理論，采用輻射方式直接作用于人體，在室內空氣溫度較高(夏季供冷工況) 、較低(冬季供熱工況)的條件下，仍可以使人達到熱舒適，與傳統(tǒng)的對流傳熱方式相比具有明顯的節(jié)能性。 - It's difficult to find convection heating in a sentence. 用convection heating造句挺難的
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