熱流方向 的英文怎麼說
中文拼音 [rèliúfāngxiàng]
熱流方向
英文
direction of heat flow-
They may be citric acid, monosodium glutamate, borax, ammonium sulphate, compound fertilizer, piece of radish, bean, less, seed, mine reside and sugar, in chemical, pharmaceutical, foodstuff, grain, mine and so on industries
物料自進料口進入機內,在激振力作用下,物料沿水平方向拋擲向前連續運動,熱風穿過流化床孔板向上穿過同物料換熱后,According to rigorous procedures, an experimental study was carried out to investigate the effects of jet exit velocity, flow direction, fluid subcooling and nozzle diameter on hysteresis of boiling heat transfer with impinging circular submerged jets of highly - wetting liquids
摘要系統地研究了液體在圓形斷面噴嘴浸沒射流作用下沸騰熱滯后與射流沖擊速度大小、液體流動方向、液體過冷度和噴嘴直徑等因素的影響。The synergy of the gravitational field with the other fields influences the mass transfer, heat transfer and affinity adsorption in the tapered bed, and the transfer directions depend upon the synergy results
上流錐形床親和層析在多場協同下,其傳質、傳熱以及吸附反應相互影響,過程的最終傳遞方向將取決于各場之間綜合作用的結果。Abstract : the processes of thermal - bonding and the features of raw material were breifly described, the temperature, pressure and speed to properties of thermal - bonded fabric were demonstratively related on the basis of three specific trials. futhermore, the authors present a point of view about the developing tendency of themal - bonding technologies for hygienic market after having an analysis upon current market status
文摘:簡要介紹了熱軋非織造布工藝流程和衛生用熱軋非織造布原料的特點與選擇.通過對3個試驗的描述和對試驗結果的分析,詳細地論證了溫度、壓力和速度對熱軋非織造布性能的影響.根據市場的現狀,發表了對衛生用薄型非織造布生產技術發展方向的展望According to a series of experimental data, the effect of following factors on the temperature in the ultra - low temperature box and cop are analyzed : the mixture composition, the pressure ratio and the return fluid extraction ratio of the rectifying column, the refrigeration capacity and the flow rate through throttle valve
並根據一系列實驗結果,分析了工質配比、循環壓比及精餾柱迴流液的抽取率、加熱量和節流元件對低溫箱內溫度和系統cop的影響,為今後的進一步研究指明了方向。Jet impingement cooling is an advantage method in heat transfer enhancement owing to its extremely high local heat transfer coefficient and simple structure. as regard as the combustor flame tube cooling structure is concerned, the impingement - converse convection - film composite cooling is an effective method, in this composite cooling structure, the impingement cooling problem could be modeled as impingement inside semi - confined channel
對于沖擊-逆向對流-氣膜復合冷卻的火焰筒結構而言,火焰筒壁面冷氣側的沖擊冷卻實質上是半封閉通道的沖擊冷卻,即沖擊射流從沖擊孔板噴出,沖擊到換熱靶面后形成壁面射流沿通道單方向流出。Mean 500 hpa geopotential height for july 2002. the red arrow shows the direction of the steering flow for tropical cyclones
二零零二年七月500百帕斯卡的平均位勢高度,紅色箭咀為熱帶氣旋引導氣流的方向。Results show that all the geometric parameters have remarkable effects on combustion performance ; the swirl of intake air generated by skew intake holes enhances fuel - air mixing, minimizes dead zone and stabilizes the flame with reverse flow, but the excessive reverse flow can cause overheat in combustion chamber and exhaust ; the consistency of flow resistance in intake and exhaust system is conducive to the stability of heater performance
研究表明,燃燒室進氣孔的孔徑、孔數、孔的分佈及方向等均對燃燒性能影響很大;斜孔所產生的旋轉進氣,雖具有強化燃氣混合、消除死區和迴流穩焰的作用,但迴流過度會使燃燒室及排溫過高;保證進排氣系統流動阻力(壓力)的一致性,有助於保證加熱器性能穩定。A thermal current flows away from the contact in an identical way.
一股熱流從接觸點以同等方式向外流出去。2 ). it has a great temperature gradient along the height in hot and cold plenums of cefr in steady state. the buoyancy force cannot be ignored because the flow velocity is low in the whole flow regions
冷熱鈉池在穩態工況下沿高度方向有很大的溫度梯度,整個流動區域內的流速較低,浮升力的影響不可忽略; 3After researching the part thermal equipments and systems include heaters, steam leakage and receiving systems, low pressure drain system etc, and computing the efficiency of the systems, find out the better choice of the imported assemblies than the domestic assemblies in parameter and the disfigurements in design and making. based on the above, point out the measure to progress them. according to the analysis, we can get some measures to increase the economical level of the systems and save more energy
對局部熱力設備及熱力系統進行分析研究,包括:加熱器設備、漏汽及回收系統、低加疏水系統、主、再熱蒸汽系統以及凝汽器等部位;並計算汽輪機本體高、中、低壓缸效率,藉此著重對汽輪機通流部分進行了剖析,找出國外進口機組動、靜葉柵、葉型的選擇比國產機組先進性以及國產機組在通流部分設計和製造中的諸多缺陷,並且指出了改進的方向,為機組提高熱經濟性、節能降耗奠定了理論基礎。The growth morphology of cu - cr eutectic are studied. during the process of eutectic growth, ( + ) growth is clinging to a phase. because cu - cr eutectic have very good coupling relation, the configuration of eutectic holds crystallography structure, and the influence of the direction of heat flow is not distinct
2揭示了cu - cr共晶的生長形態,發現其在共晶生長過程中,共晶體( + )依附在相上生長; cu - cr因有較好的共格關系,其共晶形貌按照其結晶結構學特點生長,定向凝固下熱流的方向影響不顯著。An experimental study is carried out on the effect of following factors on the combustion performance of a vehicle fuel heater : geometric parameters ( the number, diameter, distribution and direction of combustion chamber intake holes ) and intake and exhaust pressures
摘要對車用燃油加熱器燃燒室進氣孔徑(流通面積) 、孔的分佈、孔的方向等幾何參數和進排氣壓力對加熱器燃燒性能的影響進行了試驗研究。With the different tripping annulus at the inlet, a new method of the distance definition from the wall was used to measure 35 mean velocity profiles on seven sections in the pipe length x / d = 125. 2
採用新的離壁距離標定方法,在入口處設有改變擾動強度擋環的條件下,利用熱線儀在管長x d約為125的范圍內完成了七個不同管流截面上的35個軸線方向速度分佈的測量工作。Of the currently available coolers for electronic products with a high heat flux, microchannel heat sinks have been proved to be able to provide the best heat transfer performance and are one of the most promising coolers. the manifold microchannel ( mmc ) heat sink has many advantages such as low thermal resistance, compact structure, little amount of coolant, low flow rate, uniform temperature distribution along the flow direction and many others, so it is able to provide the best heat transfer performance : lowering the maxmal temperature and the temperature difference
在目前高熱通量電子產品冷卻器中,微通道熱沉已被證實是傳熱性能最佳且最具應用潛力的冷卻方式之一,而歧管式微通道熱沉因具有低熱阻、結構緊湊、所需冷卻液量小、沿流動方向溫度分佈均勻等優點則成為減小電子元器件換熱表面最高溫度、降低溫度變化的一種有效方法。From the viewpoint of safety technology of chemical reaction with heat release. the technical causes of getting out of control of these reactors are analyzed. hazardous effects of the leakage of chemical reactants both on human and environment, and the existing problems in current safety technological measures are also discussed. the cooling method of jet vaporization based on the jet principle and the direct cooling by non - vaporized liquid are introduced. the development trends of the safety technology for chemical reactors are analyzed
從放熱化學反應的安全技術觀點出發,分析了放熱化學反應器失控的技術原因、化學反應物泄漏對人員和環境造成的危害、現有安全技術措施存在的問題;介紹了基於射流原理的噴射汽化和非汽化冷卻液體的直接冷卻方法;還展望了化學反應器安全技術的發展方向。Abstract : from the viewpoint of safety technology of chemical reaction with heat release. the technical causes of getting out of control of these reactors are analyzed. hazardous effects of the leakage of chemical reactants both on human and environment, and the existing problems in current safety technological measures are also discussed. the cooling method of jet vaporization based on the jet principle and the direct cooling by non - vaporized liquid are introduced. the development trends of the safety technology for chemical reactors are analyzed
文摘:從放熱化學反應的安全技術觀點出發,分析了放熱化學反應器失控的技術原因、化學反應物泄漏對人員和環境造成的危害、現有安全技術措施存在的問題;介紹了基於射流原理的噴射汽化和非汽化冷卻液體的直接冷卻方法;還展望了化學反應器安全技術的發展方向。With the convective heat transfer of the fluid in u - tube pipes along the borehole depth considered, a quasi - three - dimensional model is built
本研究同時考慮了u型管內流體沿流動方向的導熱,首次建立了u型管內流體的準三維模型。7 the investigation of the thermoeconomic performance of an existing facility used for thermal fatigue experiments of aircraft canopy reveals the possibility and practicability of taking measures to improve it significantly. a piping system with alternative variation of flow temperature exists in this facility
對一現行的飛機座艙蓋熱疲勞試驗系統? ?即流體溫度升降交替變化的管路系統,進行了熱經濟行為的研究,揭示出它具有潛在與可行的重大改進方向和途徑。When the rotation has the same direction with the axial velocity, the effect of rotation enforces the intensity of secondary flow and the heat convection, the friction factor and the nusselt number increases as f increase ; when the rotation has the opposite direction with the axial velocity, the flow structure becomes more complicated, for f = 1. 2, the complicated structure of secondary flow generates, the friction facior and nusselt number almost has the same value of stationary straight pipe
當旋轉方向和主流方向相同時,旋轉的作用加強了二次流的強度,使得管道摩擦系數變大,管道換熱效果增強;當旋轉方向和主流方向相反時,管道內流動結構變化十分明顯, f - 1 . 2時,流動結構最為復雜,摩擦系數降至最低,換熱效果最弱。分享友人