
[電][氣象] 溫差,溫度差
HMT relates to temperature difference between inner and outer face of pipe, heating time, wide of heating wire, etc.
該方法處理的優劣,與内外壁面溫度差、加熱時間、線圈寬度、最大加熱溫度等因素有關。
In these cases, a small temperature difference may generate a large enough thermoelectric voltage to affect the accuracy of the measurement.
在這些情況下,很小的溫度差别就可能産生相當大的熱電動勢,足以影響測量的準确度。
After cooler work principle is that use of the cooling medium (such as water or air) and after cooler the exit of compressed air temperature difference.
後冷卻器的工作原理在于利用了冷卻介質(如水或空氣)與後冷卻器出口處壓縮空氣的溫度差異。
A formula was derived to calculate the temperature difference between the dew point and boiling point of a binary ideal mixture.
文章推導出了雙組分理想混合物的需點與泡點之間的溫度差計算公式。
Consequently , the temperature difference is lessened and heat exchange is reduced.
其結果溫度差别就減小了;熱交換減低了。
Temperature difference will cause huge difference in the quality of agricultural product, and quality loss is the loss of profits.
溫度的差異會帶來農産品巨大的質量差異,而質量損失就是利潤的流失。
The system also cools the air around the water, creating a bigger temperature difference so it can absorb more heat from the outside air.
這個系統同樣也給水周圍的空氣降溫,産生出更高的溫度差,這樣它就能從外部空氣中吸收更多的熱量。
The results showed that the turbulence intensity and turbulent energy of the two-phase flow increased while the transverse velocity decreased in the presence of the temperature difference.
分析已有實驗數據表明:在溫度場存在的氣粒兩相流中,兩相流場的湍流強度和湍動能将會增加而橫向速度将會減小。
This will not be instantaneous surface temperature difference, so it does not produce condensed water.
這樣表面不會有瞬時的溫度差,所以也就不會産生冷凝水。
The parts of Earth shaded by the moon naturally cool down, and this temperature difference spawns the acoustic waves, researchers said.
地球被月亮遮蔽的部分自然而然地降低了溫度,由此所産生的溫度差孕育了聲波,研究人員說。
By 2007, however, the temperature difference increased to 14 degrees .
在2007年之前,然而,溫度區别增加到14度。
One is based on the measured temperature difference between the surface and the deep water.
理論蘊藏量采用了兩個估算方法:一是采用實測的表層和深層的海水溫度差;
Parallel connection ? ? ? Small pressure drop Small temperature difference Difficult monitoring of blockage.
平行連接? ? ?壓力降小溫度差小不易檢查通道斷路。
The effect of concrete strain, stress coefficients at fibre end and temperature difference on carbon fibre reinforced concrete (CFRC) is stu***d.
結合碳纖維增強混凝土分析了混凝土應變、纖維端部正應力系數和溫度差對應力傳遞的影響。
This article analyses the reason and unfavourable influence of thermal stress resulted from the drum temperature difference during starting or shutting boiler, and proposes the counter-measure.
本文對鍋爐啟停工況中的汽包溫度差所産生的熱應力的原因及其不利影響進行分析,并提出控制的辦法。
Both inter-phase velocity slip and temperature difference were taken into account in the two-fluid model, but not in the homogeneous model.
兩流體模型考慮了汽液兩相間的速度滑移和溫度差異,而均相流模型則認為汽液兩相的速度和溫度相同。
It was proved that temperature difference was the greatest influencing factor and the filament current was the sensitive parameter in storage test.
評價的結果表明:溫度差為該種元器件最優影響因素,燈絲電流則為其儲存試驗中的敏感參數。
For parameter chosing, indoor environment change should agree with natural climate, which means temperature difference should be reduced as much as possible.
同時在參數選擇上應該遵循室内環境波動與自然氣候變化相協調的原則,最大可能的減少室内外的溫度差。
Experimental results showed that temperature difference between points in middle layer paralleling to hot platens was very little, and along thickness of the mat temperature behavior was different.
實驗結果表明,平行于熱壓闆的闆坯中心平面内的溫度分布比較均勻,沿闆坯厚度方向各點的溫度分布差異較大。
The jet leaves contrails in its wake due to the temperature difference between the hot engine exhaust and the cold air.
這架噴氣式飛機飛行時留下的凝結尾是由于其發動機與冷空氣之間的溫差造成的。
The results show that the diurnal variation of leaf-air temperature difference varies under different soil moisture conditions, the low soil moisture results in large leaf-air temperature difference.
結果表明:水稻葉氣溫差在不同的土壤水分條件下表現出不同的日變化規律,較低的土壤水分導緻了較高的葉氣溫差;
The vacuum is one of the major causes affecting the operating of steam turbines, and the temperature difference of the condenser affects the vacuum directly.
真空度是汽輪機組安全經濟運行的一個重要影響因素,而凝汽器傳熱端差又直接影響着真空度的高低。
Place in a larger temperature difference, the controller should have qualified temperature compensation function.
在溫差較大的地方,合格的控制器還應具備溫度補償的功能。
You can typically tell this by feeling for a notable temperature difference in these areas.
通常這可以告訴你一個明顯的感覺,在這些地區溫差。
There exist linear correlations between the convective heat transfer coefficient of concrete surface and wind speed, the radiation coefficient of concrete surface and the temperature difference.
實驗結果表明,混凝土表面對流換熱系數與風速、混凝土表面熱輻射系數與溫差之間均有很好的線性相關性。
|temperature drop/differential temperature;[電][氣象]溫差,溫度差
溫度差(temperature difference)指兩個物體或同一物體不同區域之間的溫度差異值,是熱力學和工程領域的關鍵參數。根據《傳熱學基礎(第六版)》的定義,溫度差是驅動熱量傳遞的直接原因,其方向性遵循熱力學第二定律,即熱量自發從高溫區域向低溫區域傳遞。
在工程應用中,溫度差的作用體現在三個方面:
溫度差的計算遵循公式:
$$
Delta T = T{text{hot}} - T{text{cold}}
$$
其中$Delta T$為溫度差,$T{text{hot}}$和$T{text{cold}}$分别代表高溫與低溫測量值。該公式被收錄于ISO國際标準《熱工量測方法》。
“temperature difference”(溫差)指兩個物體或同一物體不同區域之間的溫度差異,通常用符號ΔT表示。以下是詳細解釋:
1. 基本定義 溫差是熱力學中的基礎概念,表示兩個測量點之間的溫度數值差。例如,當室内溫度為25°C,室外為15°C時,溫差為10°C。
2. 物理意義 溫差驅動熱量傳遞,遵循熱力學第二定律: $$ Q = k cdot A cdot Delta T cdot t/d $$ 其中Q為傳熱量,k為材料導熱系數,A為接觸面積,t為時間,d為厚度。溫差越大,傳熱速率越快。
3. 應用領域
4. 測量與計算 常用溫度計、紅外熱像儀等工具測量,計算公式為: $$ Delta T = T{text{hot}} - T{text{cold}} $$ 需注意單位統一(如°C、K或°F)。
若需了解特定場景下的溫差影響(如建築保溫或電子設備散熱),可提供更多背景信息以便進一步分析。
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