熱傳換 的英文怎麼說
中文拼音 [rèzhuànhuàn]
熱傳換
英文
heat transformation-
Boiler heat exchange, condction intensification
鍋爐熱交換傳熱強化In the paper, with system energy balance method and heat conductive equations , on tne basis of short time heat transfer modeling established the long time modeling, considering heat interference in thermal well group. this paper used the finit element method for element division and computer analysis, and provided the operation temperature figure. acquired computation values agreed well with experimental results, the most difference between them was 5. 13 %
本文採用系統能量平衡結合熱傳導方程,在淺埋套管式換熱器短期傳熱模型基礎上建立了長期傳熱模型,並考慮了管群熱干擾對模型的影響。並運用有限單元法軟體編程進行離散和計算機分析,得出模擬溫度場,其模擬值與實測的均值基本相符,兩者最大誤差小於5 . 13 % ,表明該模型具有一定的合理性和實用意義。Furthermore, both current in - situ conductivity test data interpretation methods and gshp design methods are based on models that only consider heat conduction. therefore, the groundwater flow may impact the results of in - situ thermal property of soil, and then the ghe size, and make the short - time economics of gshp comparatively unattractive consequently
此外,由於現場對巖土熱物參數的測試及分析也都僅考慮了熱傳導的影響,這勢必影響現場測試結果的精度,最終又會引起換熱器大小的變化,使土壤源熱泵的經濟性受到挑戰。In addition, the heat transfer rate and the ability of dehumidification for slit - fin - type heat exchangers are superior to the plain - fin - type coils
此外,裂口鰭片型式的熱傳量及除濕率均高於平板鰭片型式的熱交換器。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。The heat - exchange apparatus is the window for air - conditioner to exchange energy with outside. we analyze the efficiency of heat - exchange apparatus by the theory of heat - transmit, and compare the advantage and disadvantage of different type evaporator ' s and condenser ' s design by lots testing, and compare the effect of heat - exchange for different type flake, and compare the effect of heat resistance for different stretch of copper tube and flake. then we get many useful results from those different comparing
蒸發器與冷凝器統稱為換熱器,換熱器是空調器與外界進行能量交換窗口,利用傳熱學原理對換熱器的效率進行分析,通過大量的試驗比較不同的蒸發器,冷凝器設計方案的優劣;比較冷凝器使用不同片型對換熱效果的影響;比較銅管與翅片的不同脹緊對熱阻的影響,通過比較得出很多有用的結論。Traditional hydronic sizing methods can be used for selecting pumps, expansion tanks, heat exchangers, and air removal devices, as long as the heat transfer liquid ' s thermal properties are considered
傳統的液體循環加熱體量法在泵、蒸發器、熱交換器和空氣移動裝置的選擇中可以應用,在考慮載熱流體的熱血特性的情況下。Compared with the existing techniques for enhancing heat transfer by adding millimeter and / or micrometer - sized particles in fluids, nanofluids appear to be ideally suited for practical application with incurring little or no penalty in pressure drop because the nanoparticles are so small that the nanofiuid behaves like a pure fluid
在液體中添迦納米粒子,可以顯著增加液體的導熱系數,提高熱交換系統的傳熱性能,而且由於納米粒子的小尺寸效應,其行為接近於液體分子,不會象毫米或微米級粒子易產生磨損或堵塞等不良結果。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。The modified model took into account not only the coupled heat transfer of conduction, convection and radiation, but also the heat convection between each zone caused by temperature difference and airflow
該模型綜合了墻體熱傳導、壁面對流熱交換以及內部控制體之間的對流熱交換過程。Thaw settlement cause negative friction. this paper base on the thought of " initiative cooling ", aim at three problems existing in common concrete pile used in frozen soil, a new type of pile is proposed to overcome the disadvantages of the classical pile used in frozen soil. pile body within active layer is fluted and refilled with porous materials such as gravels and ballasts, convection will be occur and then thermal exchange inside porous material in winter while only heat conduction exists in summer, as a result the soil around flutings will be cooled, so the top line of permafrost will be drive up
本文基於「主動冷卻」地基的思想,以及針對凍土地區普通混凝土樁存在的三大問題,提出了一種新型樁的設計思路,運用數值模擬試驗手段對其冷卻機理與加固機理進行了系統研究,即在凍融活動層的深度范圍內,在混凝土樁身的表面刻槽,修築完時槽內填充碎石、塊石等多孔介質,通過外界大氣溫度的自然波動下多孔介質在冬季時存在的對流換熱機制,而在夏季只存在熱傳導,來達到主動冷卻樁周凍土和抬升凍土上限的目的。Asymptotic behavior of the solution about heat coefficient of one - dimensional heat equation
一維熱傳導方程的解關于熱交換系數的漸近行為The first successful industrial application of absorption heat transformer ( aht ) has been put into practice in yanshan petrochemical corporation in china. on the background of this engineering, the thesis sets up the methods of absorber ' s enhanced heat and mass transfer, process simulation and finite time thermodynamics analysis. the main research work is followed as : 1
本論文以北京燕山石化公司上的國內第一套吸收式熱變換器( aht )系統為工程背景和研究對象,建立了包括吸收器強化傳熱傳質、過程模擬和有限時間熱力學在內的分析手段,並在此基礎上開發出了模擬優化軟體ass ,最後利用工廠的實測數據對軟體的計算結果進行了測試和對比,具體工作: 1The heat pipe exchanger has the advantages of compact, controlling erode of acid dew point, high efficiency, low pressure drop loss and reliability, so they are used widely in heat energy utilization and waste heat recovery. it is also helpful to recover the waste heat, save the raw materials and reduce the production costs. economic benefit from application is obvious
以熱管為傳熱元件的熱管換熱器具有下列特點:傳熱效率高,壓力損失小,工作可靠,結構緊湊,有利於控制露點腐蝕等,這些獨特的優點是它在解決能源問題,如:利用熱能、節約原料、降低成本等方面,特別是在工業余熱利用中發揮了越來越多重要的作用。The bottom of the reservoir shall be designed to provide adequate retention time of the heat transfer fluid to ensure positive heat transfer
流體貯存器必須為熱傳導流體提供適當的停留時間,以保證能夠進行充分的熱交換。Analyses experimental results with classical heat and mass transfer theory, and indicates that when these parameters change, the latent heat efficiency changes much more than the sensible heat efficiency
利用經典傳熱、傳質理論對實驗結果進行了分析,指出當上述因素發生變化時,全熱交換器潛熱交換效率受到的影響大於顯熱交換效率。Soil heat flux from atmosphere to soil is about 5 % of net radiation on a clear and cloudy day and soil discharge energy to atmosphere on a rainy day above the same field. in brief, average latent heat, sensible heat and soil heat flux is 40 %. 50 % and 10 % of net radiation respectively
在春小麥下墊面,晴天能量主要消耗于農田蒸散,而在陰天顯熱交換大於農田蒸散耗熱;在晴天和陰天大氣向土壤的能量傳輸均維持在凈輻射的5左右,雨天時,土壤熱通量為負值。Chart is constantly developing capabilities in their traditional markets as well as other emerging markets that require our skills as a provider of heat exchangers, process piping, vacuum insulated piping, cold boxes, and process vessels
除了為傳統行業提供服務外,查特還不斷提高研發能力,以滿足那些需要我們支持的行業的需求,如熱交換器,系統管道,真空絕熱管道,冷箱,及各種深冷容器。Coverage of traditional topics has been updated, including sections on thermodynamics, solid and fluid mechanics, heat and mass transfer, materials, controls, energy conversion, manufacturing and design, robotics, environmental engineering, economics and project management, patent law, and transportation
涵蓋傳統的專題已經更新,包括章節熱力學,固體和流體力學,傳熱傳質,材料,控制,能源轉換,製造和設計,機器人學,環境工程,經濟學,項目管理,專利法,以及運輸。Heat transport dynamic model of proton exchange membrane fuel cell stack
質子交換膜燃料電池電堆動態熱傳輸模型分享友人