
[熱] 傳熱系數
Heat transfer coefficient data for normal heat transfer region and heat transfer deterioration region is correlated respectively.
分别在傳熱惡化前及傳熱惡化後兩個區域内關聯了傳熱系數數據。
In mine geothermal prediction, the instable heat transfer coefficient is an important parameter for heat transfer (between country rock and air flow) computation.
在礦井地熱預測中,礦井風流與圍岩之間的非穩定傳熱系數是傳熱計算的重要參數。
Exerting the model of two mechanism heat transfer , the formulation for heat transfer coefficient of liquid film which in smooth tube and equipped with spring inserts is given in this paper.
通過大量的實驗和對各種因素的綜合分析,運用雙機理傳熱模型,得到光管和安裝有彈簧插入物的豎管降膜蒸發傳熱管液膜側傳熱系數的計算式。
The paper analysed the convective heat transfer coefficient of organic heat transfer material heater, takeing a usual thermal medium for example.
以一種常見導熱油為例對有機熱載體鍋爐的對流受熱面傳熱系數進行計算分析。
Then average heat transfer coefficient of building external wall and heat transfer coefficient of building block filling wall by calculating were calculated.
由于常規算法的局限性,在實際項目中換算外牆平均傳熱系數與外牆主牆體傳熱系數需要計算的工作量較大。
A formula of combined heat transfer coefficient was obtained based on the analysis of heat transfer of copper staves.
通過對銅冷卻壁的傳熱過程分析,得到熱面複合傳熱系數的計算公式。
The theoretical analysis model predicts the mean condensation heat transfer coefficient and the predicted mean condensation heat transfer coefficient is compared with experimental data as wall.
同時,由該模型對冷凝段的傳熱系數進行了預測,并将預測值與實驗值進行了對比分析。
Discusses the influences of the shading and airspace width on the integrated heat transfer coefficient.
讨論了遮陽設施、空氣層寬度等因素對綜合傳熱系數的影響。
All measures to improve the complex heat transfer coefficient are discussed in detail together with the improvement of the existing heat exchanger and development of new types.
文中較詳細地讨論了提高換熱器綜合傳熱系數的各種措施,還讨論了完善現有換熱器和開發新型換熱器等問題。
Combined heat transfer coefficient of hotface on copper stave has important effect on the results of simulation.
銅冷卻壁熱面複合傳熱系數值對于其溫度場的模拟結果有重要影響。
The heat transfer coefficient of large tube rotary dryer was calculated by using particle transfer model of moving heating-plate type.
論述了應用基于移動加熱闆的顆粒熱傳遞模型計算大型旋轉管排式幹燥機傳熱系數的方法。
Through the experiment, the profiles of the boiling heat transfer coefficient changing with dryness fraction at different mass flux and different heat flux have been obtained.
實驗得到了在不同質量流密度和熱流密度下窄縫流道中的沸騰傳熱系數隨幹度變化的分布。
The influence factors of the heat transfer performance and the formula of the heat transfer coefficient on the evaporation side in the umbrella-plate have been obtained.
分析了影響傘闆式降膜蒸發器傳熱的主要因素,得到了傘闆降膜蒸發側無因次傳熱系數的實驗關聯式;
The results showed that compared to conventional smooth segment baffle heat exchanger, the plate heat exchanger(PHE) can effectively strengthen the film heat transfer coefficient of the shell side.
研究結果表明,與傳統的光滑管弓形隔闆換熱器相比,闆式換熱器能非常有效地強化空氣側的膜傳熱系數。
The process of heat transfer while slab and billet solidifies is very complicated, but it become easy to describe by equivalent heat transfer coefficient.
連鑄坯凝固時的傳熱過程是一個十分複雜的過程,用等效傳熱系數的方法來描述則簡便易行。
The formula of the heat transfer coefficient on the evaporation side in the umbrella-plate could be obtained.
首先對傘闆的傳熱情況進行了理論分析,得出了傘闆蒸發側傳熱系數的計算式。
Finally, the equation for condensation heat transfer coefficient of steam in magnetic field is derived.
同時對磁場下水蒸氣冷凝傳熱系數影響的基本方程進行了推導。
It picked out heat transfer coefficient, ash concentration in smoke, fuel percentage and other parameters based on experience, summed up general formulas for heat balance in furnace section.
篩選出傳熱系數、煙氣中的固體顆粒濃度、燃料的燃燒份額等需要憑經驗取值的熱力參數,推導了區段熱量衡算的通用計算公式。
Using mixed tube bundle, high heat transfer coefficient can be acquired as well as pressure drop not too high.
采用混合管束既可獲得高的總傳熱系數和管内外傳熱膜系數,又可以使管内壓降不緻過大。
The 5% suspension always shows better cooling performance than water with lower wall temperatures and enhanced heat transfer coefficient within the whole range of mass flow rates.
質量濃度為5%的懸浮液在在整個質量流量範圍内總是表現出比水好的冷卻性能,它對應的是更低的壁面溫度以及更好的傳熱系數。
The result is that the convective heat transfer coefficient increases greatly, and increase of pressure loss is not too much.
可以大範圍地破碎和減簿附面層,從而可大大地提高對流傳熱系數,而壓力損失卻增加不多。
Wind speed and sky temperature have different effect on heat transfer coefficient of different covering materials. PE film's is obvious and PC's is almost steady.
風速和天空輻射背景溫度對不同覆蓋材料的傳熱系數影響程度不同,對PE膜影響顯著,對PC闆影響很小。
The periodically variation of heat transfer coefficient along flow direction was in exactly accordance with that of radial velocity and turbulent intensity in near wall region.
表面傳熱系數、近壁區徑向速度、近壁區湍流強度三者沿流向周期性變化的規律一緻。
The average heat transfer coefficient decreases with increasing diameter of capillary tubes.
毛細管徑的增大将導緻毛細管内換熱系數的下降。
In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.
在實際操作過程中,選擇合理的床層靜止高度和氣流脈動頻率對提高傳熱系數有利。
In order to compare the insulation performance of different materials, this paper put forward the standard condition to determine the heat transfer coefficient.
為了比較各種材料的保溫性能,提出了确定材料傳熱系數的标準氣象條件。
After that, the heat transfer coefficient is rapidly decreased with temperature decline.
當溫度繼續降低時,鑄錠表面傳熱系數又迅速減小。
“Heat transfer coefficient”(傳熱系數)是工程熱力學和傳熱學中的核心參數,用于描述熱量在不同介質或界面間傳遞的速率。以下是詳細解釋:
傳熱系數表示在單位時間内,單位面積上因溫度差(通常為1開爾文或攝氏度)所傳遞的熱量。其物理意義在于量化材料或界面的傳熱效率,數值越大,傳熱能力越強。
公式為: $$ q = h cdot A cdot Delta T $$ 其中:
單位通常為W/(m²·K)。
如需進一步了解不同傳熱模式(傳導、對流、輻射)下的具體計算,可參考工程熱力學教材或專業文獻。
熱傳遞系數是指在傳熱過程中單位時間内單位面積上的熱量傳遞量與傳熱面積之比。以下是對該詞彙的詳細解釋:
熱傳遞系數是熱傳遞學中的重要概念,用于描述熱量在物質中的傳遞速率。熱傳遞系數通常與傳熱表面的溫度差、傳熱過程中所使用的物質類型和流體速度等因素有關。
熱傳遞系數是單位時間内單位面積上的熱量傳遞量與傳熱面積之比。在傳熱領域中,熱傳遞系數是用于描述熱量在物質中的傳遞速率的一個重要參數。熱傳遞系數越高,說明熱量在物質中的傳遞速率越快,即傳熱效率越高。
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