熱特內 的英文怎麼說
中文拼音 [rètènèi]
熱特內
英文
geuthner-
The result shows the inherence rules and degree of heat - transfer property are influenced by the substance distributions when condition is changed
解析結果揭示了工況變化時熱物性分佈變化對傳熱特性影響的內在規律和程度。Using the opened thermosiphon of 38x3 as experimental element and water as working fluid, the characteristics of dynamic low load boiling, stable severe boiling heat transfer coefficient and critical heat flux are gotten for the opened thermosiphon at the pressure of 0. 02 - 0. 1mpa and 0. 1 - 0. 8mpa respectively, which makes up the drawback that the opened thermisiphon has not yet accurate boiling heat transfer relationship formulas. by means of experimental results, an opened thermisiphon waste heat recovery boiler is designed for the high temperature gases that the positi e electrode copper refining furnace exhaust, which overcomes effectively the drawback of short life, little capacity and unable to inspect that the closed steel - water thermosion has
本文以工程上常用的38 3的開口封底為實驗元件,以水為工質,對開啟式熱管內的動態低負荷沸騰、穩態旺盛沸騰及臨界沸騰特性進行系統的可視化實驗研究,實驗壓力為0 . 02 0 . 8mpa ,實驗得出了38 3的開口封底管在工作壓力為0 . 02 0 . 8mpa和0 . 1 0 . 8mpa下的管內沸騰傳熱系數及臨界熱負荷計算關聯式,彌補了開口封底管? ?這一新型傳熱元件尚無準確的沸騰換熱關聯式的缺陷。The investigation on the evaporation heat transfer characteristics in a horizontal micro - fin tube for r290 - 3gs mixture shows : a ) the average evaporation heat transfer coefficient of the mixture increase with the increasing of the mass flux
R290含油混合物在水平微肋管內流動沸騰換熱特性的實驗研究表明: a )隨著質量流率的增加,含油混合物微肋管內的沸騰平均換熱系數增加。The experimental results of air heat transfer show that the relative fin height, relative fin width, relative fin pitch and density of 3 - d ift with staggered arrangement fins all have an effect on heat transfer and flow friction. especially, the effect of fin density is bigger
空氣換熱實驗的結果表明:肋叉排三維內肋管的相對肋高、相對肋寬、相對肋間距以及肋密度均對其對流換熱特性有影響,其中肋密度的影響較大。Coal - water slurry is a new type of clean fuel as a replacement for oil. this paper introduces the tests of maoming no. 2 oil - fired 220 t / h utility boiler being retrofitted to fire coal - water slurry, including slagging tendency, heat transfer performances and pollutant emissions. firstly the k - ? two - equation turbulence model is used in numerical simulation for the side - air burner, compared with the practical measures and tests, good accordance achives
水煤漿是一種低污染、高效率、流動性強的代油新型清潔燃料,本文針對廣東省茂名熱電廠2 #油爐改燒水煤漿示範工程,對鍋爐改造后的結渣特性、爐內傳熱特性和污染物的排放特性進行了試驗研究。Heating characteristics of wheat in dryer with built - in electric heating tube
內置電加熱管烘乾機小麥加熱特性Of the currently available coolers for electronic products with a high heat flux, micro - jets impingement cooling heat sinks are able to provide the best heat transfer performance : lowering the maxmal temperature and the temperature difference. the heat transfer for multiple jets impingement has been studied firstly for summarizing a few rules. and then a copper micro - jets impingement cooling heat sink consisting of five copper sheets is designed in this paper and the jet diameter is 0. 15mm
本文首先對陣列射流沖擊進行了實驗研究,總結了陣列射流沖擊的一些規律和特性,在此基礎上,根據數值模擬優化結果設計和製作了微射流陣列冷卻熱沉(射流孔直徑d = 0 . 15mm ) ,並採用去離子水和氮氣作為工質,對熱沉內流體壓降和傳熱特性進行了研究。Characteristics of flow heat transfer of transpiration cooling for laminated plates with inclined - multi holes
層板結構內部換熱特性的研究According to dynamical characteristic of the bubble motion in the flow field, and under the assumptions of isothermal system without interior heat source, uniform bubble size, and ignoring surface tension, the mathematical expressions for interfacial momentum exchanges have been deduced which include drag, virtual mass force, and lift
針對氣液泡狀流中氣泡運動力學特性,在系統絕熱、無內熱源、忽略表面張力、氣泡尺寸均一前提下建立了氣液相間曳力、虛質量力、升力的數學模型表達式。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。In this paper, a 2. 2 kw motor is used for researching thermal property. 6 thermistors are encased in stator winding, thus the temperature of stator winding can be measured
為研究電動機的熱特性,本文以一臺2 . 2kw的三相籠形異步電動機為研究對象,預先在其內部埋設了6枚熱敏電阻。The effects of various structure parameters and fins arrangement of the three dimensional extended surface on heat transfer performance in the 3 - d ift have not been studied systematically
特別是在三維內肋管肋形結構尺寸,肋排列形式等影響管內對流換熱特性因素的系統研究工作還有待于進一步的完善。This paper is consisted of two major parts : one deals with the general working performance of the fmghp by setting up mathematic model and developing computer procedure, getting the datum related to the capillary flow and heat transfer, analysing the working characteristics of fmghp in different working temperature, heat flux and inclination angle etc. in this part, the prediction of capillary and boiling limit are also included. the other major part studies the flow and heat transfer characteristics in the micro - film region formed by the meniscus attached on the metalic fin in the micro rectangular groove. investigations on the influence of width of groove and other factors on heat transfer in this region have been made. the importance of this micro - region in the heat transfer of the entire heat pipe has been unveiled. the heat transfer characteristics gotten by this research could be used in design and application and also optimization of this kind of fmghp
本文在大量查閱現有國內外文獻的基礎上,總結並綜合前人有關微槽平板熱管理論研究方面的成果,對單面刻有槽道的微槽平板熱管進行了較為深入和細致的研究。本文的研究共分兩大部分,其中第一部分考察了該型熱管的整體工作表現,通過建立數學模型和開發相應的計算程序,得到了熱管內部毛細流動和傳熱的數據,分析了熱管在不同工作傾角、不同加熱熱流以及不同工作溫度等情況下工作特性的變化規律,考察了汽液界面上的剪切作用對熱管傳熱量的影響,並且進一步在理論上預測了該型熱管的毛細和沸騰極限。Analysis of heat transfer characteristics in the level tube with ipsa algorithm
法對水平管內流動沸騰傳熱特性的分析The thermal wave nondestructive testing technology based on emissivity of the object, it can find surface and subsurface flaws in the composites of airplane through measuring difference in temperature between flaws and materials by active heating methods and inspection system
摘要紅外熱波無損檢測基於物體的熱輻射特性,利用主動加熱技術,通過相關的檢測系統記錄試件表面缺陷和基體材料由於不同熱特性引起的溫度差異,進而判定飛機復合材料表面及內部的損傷。The cold model of helical traveling wave tube ( twt ) and the hot model of beam - wave interaction have been developed, based on three - dimensional twt - cad technology, to analytically, to analytically evaluate influence of small variations in helical slow - wave circuit parameters, within or without the manufacturing tolerances, on cold - hot characteristics of the helical twt
摘要藉助於行波管cad技術的發展,建立了螺旋線行波管三維電磁冷模型和注波互作用大信號模型,就螺旋慢波電路參數在公差范圍內外做細微變化時,所帶來行波管冷熱特性的影響進行了全面研究和討論,得出了一些有用結論。The study on condensation heat transfer cjaracteristics for vapor flow in horizontal and vertical small diameter tubes
水平和豎直細圓管內流動凝結換熱特性的對比研究In view of the fact that the power of the nano technology and its many potential application in thermal science, the thesis mainly discussed the potential application of the nano technology in micro scale heat transfer, the stability of the nano particle suspension. experimental facility was designed and built up to study flow and heat transfer performance of cuo nano particle suspension and water in mini tubes
鑒于納米技術表現出的強大生命力和在熱科學領域中潛在的廣闊應用前景,本文探討了納米懸浮液的穩定性,設計和建立了實驗系統,實驗研究了細圓管內氧化銅納米顆粒懸浮液流動及換熱特性,包括流動阻力特性,流動的轉捩和換熱特性。Thermal and structure character of straight reheating furnace were analyzed in csp technological process. coupling with heat conduction differential equations of the thin slab and the furnace lining, the mathemat ical model of heat transfer is established in the long one dimension furnace by using zone method for making the model of radiant heat transfer. the effect of the moving velocity and kinds of the slab on temperature distribution in the furnace is discussed based upon the solutions to the mathematical model
通過分析csp工藝中直通式輥底加熱爐的熱工及結構特性,採用區域法建立爐內輻射換熱數學模型,與加熱爐內連鑄坯及爐襯的一維導熱方程相耦合,建立長一維直通式輥底加熱爐爐內傳熱數學模型.通過對數學模型的求解,研究分析了不同的薄板坯移動速度及鋼種對加熱爐爐內溫度分佈的影響Rotating pipes system are often encountered in the rotary machinery of engineering applications. with the popularity of rotary machinery in industry, the characteristics of the fluid flow and heat transfer in the controlling pipe system, the transporting pipe system, and the cooling pipe system are the main factors to improve the efficiencies of the rotary machinery. meanwhile, when a man is in the aerocraft with a high rotating speed or in the rotating machine for training, the flow in the blood vessel of body will change evidently and so the study on the flow in the blood vessel also becomes the important research field in the aerial - physiology
在旋轉狀態下,這些曲線管路系統中的流動和換熱特性將會發生什麼樣的變化,是對管路系統的性能以及旋轉裝置的運行安全至關重要的問題,也是管道流動中研究很少,又是迫切需要解決的課題;同時,這個課題還可以應用於生物流體力學:當人體處于作高速旋轉或曲線運動的飛行器或宇航飛行員訓練的旋轉裝置中,人體血管內血液流動將會發生什麼樣的變化,是航天生理學研究的重要課題。分享友人