熱的垂直梯度 的英文怎麼說
中文拼音 [rèdechuízhítīdù]
熱的垂直梯度
英文
vertical thermal gradient- 的 : 4次方是 The fourth power of 2 is direction
- 垂 : Ⅰ動詞1 (東西的一頭向下) hang down; droop; let fall 2 [書面語] (敬辭 多用於長輩、上級對自己的行...
- 直 : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
- 梯 : Ⅰ名詞1 (梯子; 樓梯) ladder; stairs; steps; staircase 2 (姓氏) a surname Ⅱ形容詞(形狀像樓梯的...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
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There are many advantages to heat by air condition system, but there are also many problems. the air distribution of air condition room is often designed according to the summer outdoor parameters. thus, in winter, the hot air will arise with the influence of buoyancy, which result in the decline of vertical temperature gradient and produce a successive of problems
空調送風供暖有著很多的優點,但也出現了很多問題,由於空調房間的氣流組織一般是以夏季工況為設計工況,在冬季由於送風熱氣流在浮升力作用下上升,引起垂直溫度梯度的增加,並產生一系列的問題,致使空調房間冬季室內熱舒適性較差、能源利用效率較低。The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return
對于相對滑動的粗糙表面,因實際接觸面積小而導致接觸壓力很大,這樣使得熱流密度會很大,同時由於滑動時間很短,熱來不及傳導,最高溫度發生在摩擦表面,在垂直於摩擦面的方向有很大的溫度梯度,使得熱應力很大,且最大應力發生在表面,同時產生熱彈性變形,這種變形使得接觸區域內的壓力分佈發生變化,這種變化又反過來影響了接觸區域的溫度分佈。The article quantitatively analyses the winter hot air ' s distribution regulation in the human work region and reveals the regulation of temperature gradient forming and change and the influence to human thermal comfort. after test research, it clarifies the thermal characteristic regulation of indoor environment in winter air condition room. the mainly characteristic regulations are the over - great vertical temperature gradient and the over - low mean radiation temperature of air condition room
本文對現有實際空調房間冬季熱射流在人體工作區的規律做出定量化分析,揭示了其溫度梯度形成變化的規律及對人體舒適的影響,經過測試研究明確冬季空調房間室內環境存在的熱特性的規律,其中房間的垂直溫度梯度過大、空調房間的平均輻射溫度較低是其主要熱特性規律。
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