high-heat flux 中文意思是什麼
high-heat flux
解釋
高熱通量-
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。 -
Among his many contributions to the field of turbulent thermal convection, his work in high prandtl number heat flux measurement played a pivotal role in settling a long - standing issue in the field
他在湍流熱對流領域中有著眾多的貢獻，尤其是關于高普朗德數下湍流傳熱方面的實驗研究，此研究對于解決這個領域中長期未決的問題起了極為關鍵的作用。 -
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。 -
The maximum of instantaneous global radiation is beyond 1000w / m2 and the ten - days average intensity is 338. 90w / m2 because of high atmospheric transparency over semi - arid rainfed agriculture region of loess plateau between june and august. global radiation, reflected global radiation and surface long wave radiation emerge the characteristic of daily variations on a typical clear day and cloudy day, whereas atmospheric long wave radiation has not this characteristic. meanwhile, net radiation, latent heat flux sensible heat flux and soil heat flux appear the same characteristic as the mean daily variations above spring wheat field and bare soil on a typical clear day and cloudy day
黃土高原半乾旱雨養農業區夏秋季大氣透明度較高，晴天地面的總輻射值最大瞬時值均超過1000w m ~ 2 ， 6 8月總輻射旬平均強度為338 . 90w m ~ 2 ；典型晴天和陰天總輻射、反射輻射、地表長波輻射均表現出明顯的日變化特徵，而雨天沒有明顯的日循環規律；無論是晴天、陰天還是雨天，大氣長波輻射基本沒有明顯的日變化規律。 -
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。 -
Improvement of heat pipe technique for high heat flux electronics cooling
電子電器設備中高效熱管散熱技術的研究現狀及發展 -
As we know, heat pipe is a high efficient component of heat transfer which is especially applicable to the situation of high heat flux
熱管是一種高效傳熱元件，特別適用於小溫差高熱流密度條件下的散熱。 -
By theoretical analysis and experimental investigation to the exasperate position of the heat transfer in the umbrella - plate falling film evaporator, the exasperate experimental formula of the heat transfer was obtained. with the same reynolds, the high - point heat flux density of umbrella - plate evaporator is higher than vertical - plate evaporator could be observed from above formula, which maked out that with little reynolds liquid film was not easy to break
在實驗條件下得出了傘板式降膜蒸發器小流量下液膜破裂的實驗關聯式，此關聯式表明極限熱通量隨臨界雷諾數增大而增大，在相同的臨界雷諾數下，傘板蒸發器的極限熱通量大於直板形蒸發器的極限熱通量。 -
The bigger the diameter, the high the heat efficiency, but the weak the temperature increasing ability, length has less effect on the heat efficiency, tilt angle has less effect on the flow field and temperature field while it is larger than 30 degree, vacuum degree and emissivity have great effect on the flow field and temperature field while there is a great temperature difference between the liquid in the tube and the surroundings, the furring has less effect on the heat transfer but should be cleaned up in 3 - 5 years because of poor water quality, the higher the solar flux or the more the temperature difference between the liquid and the surrounding, the more the heat loss and the lower the heat efficiency
分析了各種因素對太陽能真空集熱管流場和溫度場的影響。直徑越大，熱效率越高，但升溫能力弱；長度對熱效率影響不大；傾斜角度大於30后，自然對流已經能夠充分進行，考慮以能夠吸收到最大太陽輻射為主；真空度和發射率對熱效率和溫度場影響很大，尤其是在介質溫度與環境溫度差異比較大時；水垢對傳熱影響較小但由於水質的問題應該被3 5年清洗一次；太陽輻射強度越大，介質溫度與環境溫度差異越大，熱損失越大，效率越低； 4 -
In order to fit the demand for future high speed cpu chip whose running heat flux reaches to 100 - 1000w / cm2, the development of an efficient cooling technology has become the update key projects all over the world
針對熱流密度高達100 ? 1000w / cm2的高速cpu晶元，開發有效的冷卻技術，是當今世界正在研究的重要課題。 -
We researched the influences of systhesis temperature, heat preservation time, eu + concentration, reduction surrounding feeling and flux on luminescent properties of sral2o4 : eu2 + phosphors, optimized the experiment conditions and reduced systhesis temperature about 100 c. we found that the systhesized sample ' s luminescent brightness is better with increasing systhesis temperature, but the phase component is more complex. we found that the luminescence brightness of sample appear a increasing process at first, and then a reducing one with the raise of eu2 + concentration, it indicated that the luminescence brightness is not better if the eu2 + concentration is too high or low. we found that the systhesized sample can not bright at too long heat preservation time, and the luminescence brightness is lower at too short heat preservation time. we found that particle diameter is bigger, the wavelength of emission peak is longer
研究發現合成溫度高，合成樣品的發光效果好，但物相組成也較復雜； eu ~ （ 2 + ）離子在一定摻雜濃度范圍內，合成樣品的發光亮度先是出現一個提高過程，然後是一個降低過程，說明eu ~ （ 2 + ）離子濃度高或低都不利於合成樣品發光；保溫時間較長，合成樣品不發光，保溫時間較短，合成樣品發光效果不好，只有合適的保溫時間才能合成發光效果好的樣品；合成樣品的粒徑大小與發射峰的位置具有一定的關系，粒徑越大，發射峰越偏向長波方向；助熔劑對樣品的合成溫度和發光性能都有影響，助熔劑的量較低時，主要表現為助熔作用，對發光影響不大，助熔劑的量較高時，使得樣品發光亮度降低和余輝時間縮短；還原方式的不同，合成樣品的發光性能也不一樣。 -
The product is constructed with foil type lv windings and hermetically sealed corrugated oil tank with the characteristics of low leakage flux, low losses, high strength, fine heat distribution, no leakage, maintenance free, beautiful outline, reliable opertion and long operating life
產品採用箔式繞組波紋油箱全密封結構漏磁少強度高損耗小散熱好不滲漏免維修外型美觀運行可靠使用期限長。 -
The product is constructed with foil type lv windings and hermetically sealed corrugated oil tank with the characteristics of low leakage flux, low losses, high strength, fine heat distribution, no leakage, maintenance free, beautiful outline, reliable operation and long operating life
產品採用箔式繞組波紋油箱全密封結構漏磁少強度高損耗小散熱好不滲漏免維修外型美觀運行可靠使用期限長。 -
A numerical method, based on single temperature sensor, constant heat flux assumed and arbitrary number future time steps, was employed to determine the heat flux during rapid cooling on high temperature surface with multiply immersed impinging water jets the finite volume discretization method and treatment of boundary condition were presented
摘要基於單點測溫、常熱流假設，任意未來時間步長的導熱反問題演算法求解浸沒水射流冷卻過程的熱流密度；採用有限容積法離散方程，附加源項法處理邊界條件。
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