熱交換速度 的英文怎麼說

中文拼音 [rèjiāohuànsùdù]
熱交換速度 英文
rate of heat exchange
  • 交 : Ⅰ動詞1 （把事物轉移給有關方面） hand over; give up; deliver 2 （到某一時辰或季節） reach （a cert...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  1. 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、環形截面、矩形截面）旋轉曲線管道內充分發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展流動的流動結構和換熱特性進行了系統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佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。
  2. Nozzle in the furnace the gas - quenching pressure can be 15 bar, airflow is big and uniform, cooling rate is very high

    配置內置高效熱交換器，以及經優化設計的氣淬系統，冷卻氣體流量均勻且流速大，冷卻速度高
  3. On the other hand, in the new system the heater is set up directly in front of the accelerating tube so that stable cooling water can be supplied, because temperature can be roughly uniform as the lowest portions of the unstable temperature through heating

    ?來冷卻冷卻水溫度測定熱交換器冷水量三方弁調節。當社加速管直前設不安定溫度谷間加熱安定冷卻水供給可能。
  4. The thesis emphasis the way and arithmetic of the key equipment of walking reheating furnace : loader machine, unloader machine, walking system, series transfer roll, control system of burning and tracking of steel billet, . make use of the system, we can carry out the function of transferring measuring and weighting, detecting, loading and unloading tracking the steel billet, we can control process of burning and exchange data each other to track the steel billet and manage the process over all of product line. goals of reheating furnace ' s producing process such as high yield, low consuming and pollution, automatic operating mode are achieved

    本文著重研究了步進式加熱爐關鍵設備如：裝鋼機、出鋼機、步進梁、爐前爐后輥道、燃燒控制、板坯物流跟蹤等控制對象的具體控制軟體流程、速度控制曲線、行程計算等具體控制策略和演算法，完成了攀鋼1450熱軋加熱爐基礎自動化系統（ l1 ）和熱工儀表的一級控制，實現板坯輸送、測量、裝出料、物流跟蹤、加熱爐燃燒控制以及板坯庫的數據信息交換，通過plc和二級計算機系統進行順序、定時、聯鎖與邏輯控制，實現了操作自動化與物料系統的全線跟蹤管理。
  5. The immersion electrical heater is chiefly applied in the direct contact mode of fluid heating. it features fast heat exchange and high thermal efficiency. it has the varieties of water heater, oil heater and gas heater. its heating element power density, i. e. the power per unit of heating area of the heating element, is an important parameter of the electrical heating element, which has a direct bearing on the performance and working life. the working out of the value is a highly specialized problem, being under the influence of many factors ( media flow rate, tempt, physical and chemical properties and direction in which the medium flows past the element etc )

    浸入式電加熱器主要用於直接對流體接觸加熱的場合，具有熱交換快，熱效率高等特點，分為水用加熱器、油用加熱器、氣體用加熱器，加熱元件的功率密度：即電加熱元件單位發熱面積上的功率，它是電加熱元件極重要的參數，直接影響加熱器的使用性能及使用壽命，它的取值是一個非常專業的問題，受到許多因素的影響（如介質的流速、溫度、物理和化學性質及介質流過加熱元件的方向等等） 。
  6. In this model, the velocity was controlled below50 m / s so that it is easy that the temperature of outlet propellant exceeds 1000k. by the measure of advancing the melting point of metal panel to 3000k, the temperature of outlet propellant even could be close to the very high temperature of the metal panel. it is very active to improve the capability of the whole propulsion system

    在本文模型中，將管道內工質的流速控制在50m / s ，熱交換器的出口工質溫度就能夠提升至1000k以上;提高換熱器高溫加熱段的金屬平板熔點到3000k以上，完全可以將工質出口溫度提升至接近金屬平板的溫度，這樣可以大幅度提高推進系統的性能。
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