heat-transfer area 中文意思是什麼

heat-transfer area 解釋
傳熱面積
  • 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;...
  • area : n. 1. 面積;平地;地面。2. 空地;〈英國〉地下室前的空地。3. 地區,地方;〈比喻〉區域;范圍。
  1. Miniature evaporator is a compact exchanger with small volume, light weight, and big heat transfer area per unit of volume. it is an important application in the field of cryogenics and refrigeration

    微型蒸發器是一種體積小、重量輕、單位體積換熱面積大的緊湊式換熱器,在製冷低溫技術領域中有著重要應用。
  2. In the third chapter of this dissertation, based on the physical and chemical properties of hydrogen and the combustion characteristics of hydrogen, the quasi - dimension combustion calculation model of hydrogen ? fueled engine is set up through analyzing the characteristics of turbulence flame and chemical reaction kinetic of hydrogen ? air mixture. the model includes the dual ? area thermodynamics sub - model, quasi - dimensional turbulent entrainment combustion sub ? model, turbulence flame promulgating sub ? model, hydrogen - air mixture chemical kinetic sub - model and loss of heat transfer sub - model and so on

    本文從氫燃料的物化特性和燃燒特徵著手,通過分析氫空氣混合氣燃燒的湍流火焰結構和燃燒化學反應動力學,基於雙區燃燒模型,建立了包括雙區熱力學、準維湍流卷吸燃燒、湍流火焰傳播速度、氫空氣混合氣燃燒化學反應動力學以及傳熱損失等模塊的燃燒模型,並給出了相應的計算方法。
  3. Abstract : based on the analysis of influence of tubular rib construction on heat transfer area on steel blank and heat transfer space in furnace, a t - shape support system for tubular rib is presented, by which the construction of wholly overhead furnace hearth can be realized for large and medium scale continuous reheating furnaces, making furnace gases to come into full contact with steel blank, raising space utilization ratio of furnace chamber and improving heat exchange

    文摘:分析了爐筋管結構形式對傳熱空間、坯料受熱面積的影響;提出採用t形支撐技術優化爐筋管,可實現大、中型連續加熱爐的全架空爐底,使爐氣與坯料表面充分接觸,提高爐膛空間利用率,可較大幅度提高爐膛熱交換。
  4. Based on the analysis of regime of spray and heat transfer, the spray nozzles were redesigned to distribute liquid in the center area of th e tower and the gas inlet was enlarged to raise gas velocity

    根據對順流式空塔的噴淋及傳熱模式的分析,重新設計了噴嘴,使噴淋液在設備中心附近集中;縮小了進氣管直徑,以提高進口氣體的流速。
  5. Although a variety of techniques, such as addition of surface area, swirl flow devices, vibration of heated surface, vibration of fluid, are applied to enhance heat transfer, major improvements in heat transfer capabilities have been held back because of the low thermal conductivity of conventional heat transfer fluids

    隨著對熱交換設備換熱表面強化傳熱技術研究的深入,換熱工質的傳熱性能已成為影響熱交換設備高效緊湊性能的一個主要因素,低導熱系數的換熱工質已成為研究新一代高效冷卻技術的主要障礙。
  6. Heat exchanger inside the tank which provides more than 1. 2m2 of heat transfer area

    水箱內的熱交換可以提供不止1 . 2m2的換熱面積。
  7. The optimum inclination angle is between 15 ~ 20, the length of thermosyphon will not change the phase - change heat transfer coefficient of the evaporation section and the condensation, which will enlarge heat transfer area of thermosyphon and increase the heat exchange capacity. the head - on speed of wind only stranger the heat transfer of the evaporation section and the condensation section. the experiment shows that the mathematic model closely fits to the thermosyphon, moreover, the one key to resolve the thermosyphon effect lies in decreasing the thermoresistance of evaporating section and condensation section. this study can provide directions and experience in the future research

    傾斜角越大,熱虹吸管總熱阻越大,最佳傾角在15 20之間;充液率過多或過少都會對傳熱性能產生不利影響,對于本實驗採用的1 . 75m 、 2m 、 2 . 5m 、 3m熱虹吸管,最佳充液率在20 % 35 %之間;管長對傳熱也有影響,管長不改變熱虹吸管蒸發段和冷凝段的換熱系數,只增加了熱虹吸管的換熱面積,增大換熱量;迎面風速的大小,起到強化熱虹吸管蒸發段和冷凝段換熱的目的。
  8. According the characteristics of heat exchanger, the number of flow phases and the flow structure in the heat exchanger vary when heat transfer area, heat transfer coefficient or pressure change. subsection models was founded respectively, and that the simulation model has been set up through advanced continuous simulation language ( acsl ) correspondingly

    針對換熱器動態工作過程中各相區的換熱面積、換熱系數、壓力的變化會引起製冷劑相區數目和相區組合發生改變的特點,分別建立了各種組合結構的數學模型,並運用acsl實現了它們的模擬模型。
  9. The values obtained from the optimum calculation are compared with that from the conventional calculation, and the result shows that, by means of the optimum design, under the given restrains, the pipe heat exchanger can operate well with a reduction of over 25 % heat transfer area

    實例優化計算結果與常規計算結果的比較表明,優化設計可使管式換熱器在滿足給定約束條件下,節約25 %以上換熱面積,提高管程和殼程的流速,從而提高傳熱系數,最終得到操作、能耗和投資等方面的最佳經濟結構。
  10. Fluidized bed drier enjoys advantages of even solid particle mixing and large heat and mass transfer area of gas and solid phase

    流化床操作具有固體顆粒混合好,氣固兩相傳熱傳質表面積大等優點。
  11. Taking the aqueous sandy soil in hot summer and warm winter area as a heat transfer medium, studies the influence of seepage on heat transfer characteristics of the soil by a simulating experiment

    摘要以夏熱冬暖地區富水土壤砂質土為傳熱介質,進行了水滲流對其傳熱特性影響的實驗模擬研究。
  12. With an actual ground source heat pump system example, based on the hourly calculation of annual cooling and heating load, carries out numerical simulation on heat transfer characteristics of the soil around compact pile - buried underground heat exchangers with large land area

    摘要以一實際地源熱泵系統為例,在全年逐時負荷計算的基礎上,對大面積密集型樁埋換熱器管群周圍土壤的換熱特性進行了數值模擬。
  13. In view of results obtained in the work, the commonly 共同 made assumption 假定 of equality 均等 of heat transfer coefficients for both the bundle and its additional surface may lead to certain 確定 errors 誤差 in heat transfer calculations and discrepancies between the calculated values of heating surfaces area and later operational needs of steam generator

    在工作得到的結果,傳熱系數的做法為捆綁和它附加的表面在熱傳遞演算也許導致某些熱化表面的誤差值和蒸汽發電器之間的錯誤和差誤。
  14. At the beginning of this article, we give the analysis about the principle of external condensation. we find out that the most important factor in the condensation is the temperature of the air in the system. and we point out the factors which can make influence in the external condensation, such as the temperature and the humidity of the environment, the temperature and the pressure of the supplying air, the load of the system, the area of passage of speed control valve, and so on. next, we give the mathematics model of the pneumatic system using the knowledge of aerodynamics and heat transfer theory. and using the finite difference method and the numerical analysis we can get the solutions of the model. we use c program to simulate the model

    本文首先對氣動系統外部結露的原理進行了分析,指出了氣動系統內部氣體溫度下降是氣動系統外部結露根本原因,提出了影響氣動外部結露的主要因素,包括環境溫度、環境濕度、供氣壓力、供氣溫度、氣缸負載和調速閥開度等。然後應用氣體動力學、氣體熱力學和傳熱學對氣動系統建立數學模型,用逆步進有限差分法和數值分析演算法對所建模型進行求解,利用c語言編製程序對氣動系統模型進行模擬,給出了氣管及氣缸內氣體的各個時刻的狀態參數。
  15. 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。
  16. Matched with optimal refrigeration system of high - efficiency heat output which applies fiber - tube vaporizer and in - line condenser and increases the heat transfer area while saving more power

    優化製冷系統匹配,採用絲管式蒸發器和內藏式冷凝器,有效增大了熱交換面積,耗電更省。
  17. The effective heat - transfer temperature difference ( t _ i ) of every effect of multi - effect evaporation subsystem and the preheat temperature rise ( t _ ( p, j ) ) of every level of multi - level preheat subsystem of the design model were distributed by equal heating area, equal heat - transfer temperature difference, and free proration methods. the simulation of design has been conducted by matrix method combined with iterative method. the free proration method transformed the decision variables from t _ i and t _ ( p, j ) with complex restriction into _ i 、 _ p, jwith the value range of 0 1, and provided a simple and convenient method for optimum design

    操作型模型分別以t _ 0 、 t _ k 、處理量f _ 0 、出料濃度x _ ( az )等不同控制變量為未知變量並採用矩陣法結合迭代法進行操作模擬計算;在操作模擬計算的基礎上,建立了復雜多效蒸發系統操作優化模型,該模型以濃縮成本最小為優化目標,以t _ k和f _ 0為決策變量,採用遺傳演算法結合矩陣法求解。
  18. In the area of seasonal frozen region, the road takes place the cycle of freezing and thawing variety with the season, the mainly disease harm generating from this is the frost heave and frost boiling etc. . the disease harm belongs to the heat transfer problem, but the effective measure to prevent and cure the frost boiling has something to do with the gradient of temperature and humidity

    在季節性凍土地區,道路隨季節交替發生凍融循環變化,由此產生的病害主要是凍脹和翻漿等。病害的形成歸根結底屬于熱質遷移問題,而防治凍脹與翻漿的有效措施無不與溫度和濕度有關,搞清冬季凍結過程道路結構體系溫度、濕度及應力的狀況,是正確設計路基路面,防治凍脹和翻漿的先決條件。
  19. The influence of these irreversibilities on the performance of an absorption refrigerator whose working fluid flows continuously is investigated. the optimal relation among the coefficient of performance, cooling rate and overall heat - transfer area of the refrigerator is derived, from which some important performance bounds of the refrigerator are determined

    這些不可逆性對工質作連續流動的吸收式製冷機性能的影響被揭示,並導出了製冷機製冷系數、製冷率和總熱傳導面積間的優化關系,由此確定了製冷機的重要性能界限。
  20. Lamilloy is a new cooling technology which has advantage of combining film cooling, internal impingement, large internal heat transfer area and enhanced heat exchange by pin fin array

    多孔層板冷卻技術集沖擊冷卻、對流冷卻和氣膜冷卻於一體,是一種新型的冷卻方式,具有冷氣消耗量少,冷卻效率高的優點,應用日益廣泛。
分享友人