壁熱流量 的英文怎麼說
中文拼音 [bìrèliúliáng]
壁熱流量
英文
wall heat flux- 壁 : 名詞1 (墻) wall (of a house etc ) : 銅墻鐵壁 bastion of iron2 (作用像圍墻的部分) wall of st...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 流量 : rate of flow; flow; runoff; discharge; throughput; (flow) rate; quantity (of flow); flux
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But in his time, the franklin stove produced far more heat than a fireplace, cost less to operate, was less smoky, and became popular all over the world
可是,在那個時代,富蘭克林爐比壁爐發出的熱量大得多,費用少,煙也少,因此而流行於全世界。Experimental study of measurement for dissipation rate scaling exponent in heated wall turbulence
壁面加熱湍流耗散率標度指數測量的實驗研究After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %
摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定,確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒,增設煙氣含氧量分析,可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下,極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果,從而降低排煙溫度45 ,減少加熱爐排煙損失,節約了煤氣量6 %以上。3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant
對鍋爐本體進行了燃料燃燒計算、爐膛結構熱力計算、對流受熱面結構熱力計算、鍋爐給水加熱器結構參數設計、煙道阻力計算及鍋爐元件強度校核等;改進了水冷壁布置使換熱效果更好,減少輻射換熱損失;改進對流段結構,更充分的利用爐膛出口煙氣余熱,提高熱效率;並且進行了煙氣阻力計算、熱效率計算和能量平衡測試,對改進后的稠油燃料和改進前進行了對比,燃燒狀況和熱效率有明顯改善。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。As the dangerous position needed to be verified has been identified with the known heat flux profile and the characteristics of flow rate distribution, the metal tube temperature of the position can be obtained
此方法克服了目前常用的電廠鍋爐壁溫計算方法中校核點工質流量與熱負荷並不一定互相對應的缺點。Under the condition of constant phosphorus mass flow rate, the smog exit temperature would increase slowly while other parameters would decrease with increasing excess air coefficient
在燃磷量不變情況下,最高燃燒溫度、壁面最大熱流和平均熱流均隨過剩空氣系數的增大而減小,但煙氣出口溫度緩慢增加。The predicted results showed that maximum combustion temperature, smog exit temperature, maximum wall heat flux and averaged wall heat flux would increase with increasing phosphorus mass flow rate when excess - air coefficient or air flow rate was constant
模擬結果表明,無論過剩空氣系數固定還是空氣流量固定,隨燃磷量的增大,最高燃燒溫度、煙氣出口溫度、壁面平均熱流和最大熱流都呈上升趨勢。The effects of parameters on maximum combustion temperature, smog exit temperature, maximum wall heat flux, averaged wall heat flux of a new phosphoric acid tower with circular water wall were discussed, including phosphorus consumption, excess - air coefficient, wall temperature and radiation absorption coefficient, with the mathematical model developed in part
摘要利用已建立的數學模型考察了燃磷量、過剩空氣系數、壁面溫度、輻射吸收系數對新型燃磷塔的最高燃燒溫度、煙氣排放溫度、壁面最大熱流和平均熱流的影響。The paper introduces the fundamentals of the temperature distribution in the borehole drilled in the frozen formation, and discusses the ascertainment of these parameters, including the mass quantity of circulation medium, the coefficient of thermal conductivity of drilling rods, the coefficient of the intensity of heat exchange and the coefficient of unstable heat exchange between the rock and the circulation medium, and the rising of the temperature of the circulation medium in the bottom of the bore
摘要介紹了凍土鉆孔內溫度分佈研究的理論基礎,其中主要討論了沖洗介質的質量流量、鉆桿桿壁的導熱系數、巖石同沖洗介質的熱交換強度系數與不穩定熱交換系數,以及孔底沖洗介質溫度升高值的確定。When in experiment, the air was heated by the film heater installed on the above and below surface of channel, adopting various air velocity of flow, test import ' s and export ' s temperature, wall temperature, fluid flux and the drop of pressure, and the other parameter. adopting nu and nu0 to analyze the baffle ' s situation of heat transfer and fluid flow, which baffle was holed various diameters
實驗時,通過矩形通道上下壁面敷設的電加熱膜加熱通道空氣,改變空氣流速,測試不同工況時的進出口溫度、壁面溫度、流體流量和壓力損失等參數,並採用無量綱努謝爾特準則數nu 、 nu _ 0等分析了設置不同開孔折流板的換熱與流動情況。The demonstration of heat - transfer measuring techniques and prospect of infrared thermal mapping techniques, main parts and performance indexes of a infrared camera, functional blocks and implementation of infrared processing software, experimental facility and measuring system of the wind tunnel has been made. the model emittance was experimentally determined and the three methods correcting directional emittance were compared. those problems of the infinite - slab model thickness and constant wall heat rates hypothesis, the determination of adiabatic wall temperature were discussed in a 1 - d heat conduction analysis
本文對紅外熱圖測熱技術與應用前景、紅外熱像儀主要部件與性能指標、紅外測熱數據處理軟體功能模塊與實現、風洞試驗設備與測量系統等進行了論述,測量了模型表面發射率並對發射率隨極角變化的三種修正方法進行了對比,對一維熱傳導分析中模型壁厚半無限假設、壁面熱流定常假設、絕熱壁溫選取等進行了探討。Regarding the study of transient operations for buried hot oil pipelines, resulted from changes of throughput and heating temperature, the mathematical model, where the flux between the outer wall of pipeline and soil acts as the coupling parameter, is put forward and one simple and effective method to calculate the flux is also presented in the paper
摘要通過對因輸量、加熱溫度等因素引起的埋地熱油管道非穩態運行過程的研究,提出了以管外壁與土壤交界處的熱流量作為耦合參數的數學模型,並給出了熱流量的簡單有效的處理方法。This platform is then used to study the temperature distribution and fluctuation of module ' s wall, the fluctuations of thermal control system, temperature and humidity in the cabin for the short and long cycles of the thermal environment changes. this thesis suggests a temperature control method for cooling loops, a temperature and humidity control method of the cabin air and simulates their effectiveness
用該平臺模擬了艙壁的溫度分佈及波動特點,研究了熱輻射環境的短周期和長周期波動及艙內熱負荷波動對熱控制系統及艙內空氣溫度、濕度造成的動態影響;給出了熱控迴路溫度控制方法,利用最佳去濕流量的概念提出了具有回熱流程的艙內空氣溫度、濕度控制方法,對控制效果進行了動態模擬。In fluent, the flow field of the tube wall, center, top, middle and bottom of the evacuated solar collector tube can be observed, the temperature - time curve and radial temperature gradient can be obtained, the heat loss of different part can be directly captured. 3. all kinds of effect factors of the flow field and temperature field have been analyzed
通過fluent計算,清楚地觀察到太陽能真空集熱管壁面和中心部分,頂部、中部和底部在各種工況下的流場分佈均不相同;得出了各種工況下的溫度-時間變化曲線,沿軸線方向的溫度梯度;同時還計算了各部分熱損的傳熱流量; 3Analyzing of the heat transfer in microchannel heat sinks, finite element method is used to calculate the surface temperature, fluid temperature and the total thermal resistance of microchannel heat sinks with arbitrary base heat flux distribution
在對微管道散熱器進行傳熱分析時,本文利用有限元法在微管道底壁熱量任意分佈的情況下,計算了微管道的壁面溫度和流體溫度分佈,最終得到了總熱阻值。The hot - dip - depth and temperature difference between fluid and platelet wall are influenced by many factors, such as the coefficient of heat conductivity of platelet and fluid, the coolant fluid, the knudsen number, and so on. high temperature make kn number become bigger, and then microscale effects become notable
3 、熱浸深度、流體與層板壁面的溫差大小要受層板的導熱系數、冷卻劑流量及流動的kn數等因素的影響。高溫條件使kn數增大,微尺度效應增強;而高壓條件下kn數減小,微尺度效應減弱。The type of this article is " used for product ". it analyzes surface pollution of metal, hydro capacity and effect to wall piping quantitatively on the base of the rinsing of piping of hydraulic system of precise - rolling machine at the hot sequential rolling plant. by analysis, we confirm the fit flux and pressure when rinsing, design high - ability, high - efficiency, wide - applicability whole set equipment
本論文的成果直接用於生產,以太鋼熱連軋精軋機液壓系統的鋼管清洗為背景,對金屬表面污染進行分析,對液壓鋼管沖洗時流體的性能和其對管道內壁的作用效果進行定量的分析,確定合適的沖洗流量和沖洗壓力,設計製造了能力大、效率高、效果好、適用廣的成套裝置。On the basis of the reptured tube at the final superheater of no. 4 boiler in yangluo power plant, the " tee junction effect " of terminal header on flux distribution in superheater was analysed, a mathematical model was founded to calculate the tube temperature and evaluate the lifespan of superheater and some measures to prevent eddy current in the area near the tee junction were put forward
摘要分析了進口等徑三通對過熱器管流量分配的影響,建立了過熱器壁溫計算模型,並以華能陽邏電廠4號爐高溫過熱器爆管為例,對渦流效應的大小進行了分析,提出了消除渦流效應的措施。( 2 ) the computation how thermal boundary conditions affected heat transfer coefficient in rotating cavity was carried out through four types of cfd conditions on the disk surfaces : certain temperature, certain heat flux, linear distributing temperature and linear distributing heat flux, abundant results clearly verified the affection
( 2 )開展了旋轉盤腔內熱邊界條件影響換熱系數的數值研究,設置了壁面定溫、定熱流密度、溫度線性分佈、熱流密度線性分佈四類計算工況,大量計算結果驗證了旋轉盤腔內熱邊界條件對換熱系數的影響。分享友人