cooling velocity 中文意思是什麼
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4. the temperature of infall cooling water is less than 30, the velocity of cooling water flow should be over 4l min for capacitor below 1000kvar and it should be over 6l min for capacitor over 1000 kvar
4 .冷卻水的進水溫度不超過30 ，冷卻水的流速對1000kvar及以下的電容器不低於4l min ，對1000kvar以上的電容器不低於6l min 。 -
Principal conclusions were drawn as the following : the non compatibility of pressure or velocity of the gas on both sides of the contact surface is the cause of the formation of shock wave ; the heating effect of reflective shock wave to driving gas during charging or exhausting process is the internal mechanism of peak oscillating effect, and all the factors that influence the formation and the running of the shock wave will influence the peak oscillating frequency, cooling effect
主要結論如下：熱分離機內激波形成的原因是射氣瞬間接觸面兩側壓力和速度不相容；峰值振蕩效應的內在機制為反射激波對充氣階段的驅動氣或低溫排氣的加熱，凡是影響激波形成及運動的因素都將對峰值振蕩頻率、冷效應及熱效應產生影響；當充、排氣時間比為0 . 1763時，最佳射流激勵頻率出現在高階峰值振蕩頻率上。 -
And experimental study on the heat transfer performance and pressure drop characteristic of the process of bubbling evaporative cooling are carried. as there are so little attention and studies on the process bubbling evaporative cooling about heat transfer in the world at present, this paper mainly deals with the effects of the different bare tower velocity, weir height, heat flux density and plate perforation geometries on the heat transfer coefficient and the pressure drop of the process of air flowing
由於目前國內外對鼓泡蒸發冷卻過程在換熱方面的關注和研究較少，本文對不同空塔速度、不同堰高、不同熱流密度、多孔板的不同幾何尺寸對換熱系數及空氣流動過程阻力的影響進行了實驗研究及理論分析，總結了本實驗條件下換熱及阻力的實驗關聯式。 -
The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。 -
Increasing the cooling velocity and additions of nb and zr can refine the a - fe dendrites in as - cast alloys, decrease the amount of a - fe phase after homogenization treatment. as a result, the magnetic. properties were improved
提高鑄錠的凝固速度及添加nb和zr可以促進鑄態合金內- fe相的晶粒細化及均勻分佈，減少均勻后殘留的- fe相，提高均勻化的效率和質量，從而提高磁體的矯頑力。 -
Changing temperature velocity in inner barrel is not a stable constant, and it will vary with advancement of measuring from time to time, thus cooling emendation quadrature model is established to compensate temperature dissipation
提出以內外桶溫差導致的量熱系統溫度變化的速度對主期測量時間進行積分的冷卻校正計算模型。 -
The best match between cooling efficiency and power can be obtained by choosing a reasonable flow velocity
合理選擇流速可以達到冷卻效率與動力的最佳匹配。 -
3 the design theories of cooling pipe of play down internal temperature of mass concrete about diameter, length, arrange method, rate of flow, current velocity, reduce heat time, temperature disparity to in and out, reduce heating result etc. 4 the theory of influence about concrete internal temperature and concrete crack because of transform of mixture ratio and pulverized fuel ash sophisticate quantity
西安建築科技大學博士生論文一;一;一一『一一一3降低大體積混凝土內部溫度常用的冷卻水管的管徑、長度、布置方法、水流量、流速、降溫時間、進出水口的溫差、降溫效果等的設計計算理論。 4配合比及摻加料對混凝土內部溫度和混凝土開裂的影響理論。 -
It is reduced the thermal loss, molten steel cooling velocity and product cost and is improved the working efficiency and quality
實踐證明，烘烤器全纖維新型壁襯，顯著降低了鋼包熱量損失、鋼包內鋼水冷卻速度和生產成本，提高了生產效率和產品質量。 -
In this task, a test _ bed for engineering vehicles was developed based on virtual instrument. the whole system comprised 5 parts : the checking of running velocity, which was gotten on the test bed through the vehicles simulating real road running ; the temperature checking of the important points on the transmission system ; the temperature checking of the circling cooling water on the exit port of dynamometers ; the control of the loading power. which was given to vehicles by the power measuring machine ; the control of the total test - run time
本課題開發的基於虛擬儀器的工程機械跑合試驗臺，其測量和控制參數有：行駛速度檢測（車輛在跑合試驗臺上模擬路面的行駛速度） ；傳動系溫度檢測（試驗車輛傳動系主要部位多點溫度） ；冷卻水溫度檢測（測功機循環冷卻水出口溫度） ：加載功率控制（測功機施加給車輛的載荷） ；跑合時間控制（試驗車輛在試驗臺上加載跑合的總時間） 。 -
But the alloys fabricated by normal ingot metallurgy worsen the mechanical properties due to the coarse block - like or plate - like angular primary si particles. multi - layer spray deposit ( mlsd ) technology is a kind of rapid solidification with high cooling velocity up to 1 04 - 1 06k / sec, which can improve the microstructure, lessen segregation and increase the solid - solution of the alloy
利用多層噴射沉積技術的高冷速（可達10 ~ 4k / s ） ，可顯著改善al - si合金的顯微組織、減少偏析、提高合金固溶度等，使合金性能得以大幅度提高，擴大其應用范圍。 -
With the increasing of weir height, the pressure drop increases. and it is independent of bare tower velocity and plate dimension. the correlation before was corrected as follows : pl 3911z this paper analyzed the heat transfer coefficient between the outer wall of heat tubes and cooling water
堰高越高，換熱系數越大；在鼓泡范圍內，空塔速度越大，換熱系數越大；在本實驗條件下，熱流密度在10kw / m2附近換熱系數達到最大值。 -
The size of the nanoparticles prepared with the flow - levitation method can be controlled by controling the gas pressure in the action tube, the velocity of cooling gas flow and the temperature in the melt metal globule
自懸浮定向流方法制備納米鋁粉和銅粉的過程中，通過控制反應管內的氣體壓力、冷卻氣體的流速、熔球的溫度等因素可以對粉體的尺寸分佈進行控制。 -
Temperature process lines with tidal cycles of multi engineering conditions of characteristic sections are obtained, the relationship between temperature distribution and velocity field is established, the inner mechanism change of temperature process lines is investigated, the interrelation between water intake and outlet is analyzed, the relation between the ratio of dimensionless temperature rise span of the plant intake and the ratio of river discharge volume and plant cooling water intake volume is obtained
得到了特徵斷面多種工況隨潮周期變化的溫度過程線，建立了溫度場與流速場的相關關系，研究了溫度過程線的變化機理，分析了取排水口對溫度場的相互影響關系，探討了無量綱溫升時長比與無量綱來取流量比的相關關系。 -
In this thesis, we intended to eliminate the a - fe phase by adjusting the composition and the cooling velocity. the effects of sm content, cooling velocity and the additions of nb and zr on the microstructures of sm - fe alloys and magnetic properties of sm2fe17nx were studied. effects of nitrogenation techniques on magnetic properties were also studied
本文力圖通過控制合金成分及冷卻速度的方法來消除sm - fe合金中初生的- fe相，系統地研究了sm含量，凝固速度及nb和zr的添加對sm - fe合金微觀組織的影響，及合金成分和氮化工藝對sm _ 2fe _ （ 17 ） n _ x磁性能的影響。 -
Mostly, including in the cubage of periodic sizing flash tank, steam exhaust pipe, draining pipe, cooling water line size, the cubage of continuing sizing flash tank. in chimney outlet velocity, the users should confirm the parameters of
《擴容器和煙囪出口煙速選擇計算軟體系統》將為電力設計行業帶來極大的經濟效益和社會效益，同時也為電廠設計過程進一步現代化奠定了堅實的基礎。 -
Abstract : the on line measuring technology suitable for closed cooling system as well as open cooling sysem of blast furnace in the water temperature, the difference in water temperature, the rate of flow, the current velocity, the heat load and lead water detection is introduced. the fundamental principles and requirements involved and distributed computer network applied in the measuring system are described. the situations in industrial use are analyzed and summed up
文摘:詳細介紹了一種既適用於高爐閉路冷卻系統，又適用於高爐開路冷卻系統的進出水溫度、水溫差、流量、流速、熱負荷及檢漏在線監測技術.描述了該技術基於的基本原理和要求以及檢測系統所採用的分步式計算機網路結構特點.最後，對該技術的工業實際應用情況進行了分析和總結 -
Critical cooling velocity
臨界冷卻速度 -
Effect of cooling velocity on phase transformation and formation of steel t
91相變速度和產物的影響 -
However, due to the supplying air volume change corresponding to cooling or heating load change, such phenomena as uneven temperature and velocity distribution often take place, which lead to bad indoor air distribution and thermo - environment
然而在變風量空調室內，因為送風量隨著室內負荷的變化而變化，經常存在溫度和速度分佈不均勻現象，導致室內不良的氣流組織和不舒適的熱環境。
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