ventilation number 中文意思是什麼

ventilation number 解釋
通風次數
  • ventilation : n. 1. 通風，換氣（法）；通風裝置。2. 發泄，發表；（問題的）公開討論；訴諸輿論。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. This paper has analyzed twenty - year climatic data of typical cities in cold area, carried on lots number of field investigations and e xperiments, and systematically discussed improvement strategies for indoor physical environment of the ground floor room of residential buildings. though investigation of its thermal, sound and lighting environment it ' s found that there are many problems in this kind of room. those are : seasonal wetness, mold and fungus growing, destroyed structure and furniture etc, insufficient illumination, and bad ventilation condition

    得出寒冷地區住宅底層室內熱環境、聲環境、光環境的實際狀況，結論表明，寒冷地區住宅底層存在的問題：季節性潮濕，高濕度導致黴菌生長、繁殖，潮濕的室內環境，導致建築物維護結構的內表面受潮起鼓，引起結構破壞，室內傢具、電器、物品的損壞，使得室內的衛生狀況、人體健康都受到影響：採光的明顯不足、通風散熱能力較差等。
  2. According to thermal state similitude model experiment of the langya mountain hydropower station, we adopt different velocity of air ventilation and exclude air proportion of upriver and downriver, this paper contrast the air distribution of the dynamo floor on each method, and educe the best projects of arch crest supply air that adapt to langya mountain hydropower station ’ s dynamo floor : g = 17. 4 10 ~ 4m ~ 3 / h, 22 vents, d = 600mm, the scale of volume 1 : 3, t0 = 16. 9. it ’ s also thought that improved any side of volume can reduce its temperature. when study on the air supply of langya mountain hydropower station ’ s underground dynamo floor by cfd software, it proved that cfd software is correct when compare with model experiment. when arrange the number of 5 kinds of vents, it concluded that the number of vents 14 to 22, it can ’ t change velocity, in 36 to 40 can lead to reduction of velocity. when vent in 14 to 36, the parameter kt doesn ’ t change, when the number is as large as 36, kt reduces

    在此基礎上，模擬了5種風口布置方案和送風量的改變對發電機層溫度場和速度場的影響，獲得了些可供參考的結論:在風量和送風速度不變的條件下，風口個數在（ 14 ~ 22 ）小范圍變化時，工作區平均風速基本不變，大幅度增加風口個數（ 36 ~ 44 ）就會導致工作區平均風速的降低，風口數在14 ~ 36之間對工作區的溫度不均勻系數影響不大，當風口數> 36時，溫度不均勻系數隨著風口數的增多而變小，速度不均勻系數一直隨著風口數的增加而減少;在風口布置和尺寸不變的情況下，送風量變化時，工作區平均溫度隨送風量增大而降低，平均溫度的降低量逐漸趨于減少，能量利用系數先是隨著送風量的增加而增大，后隨送風量增加而減少。
  3. The high - performance heat - reflective coated glass is also called sunlight control coated glass it is made by coating a number of metal or metal compaound films onto the high - quality float glass or other base glass with the vacuum magnetic control sputtering method, which can effectively control the reflection, transmission and absorption of solar energy, that is to say, this glass allows sufficient natural light to come in for daylighting, and can also reflect major part of sunlight irradiation to reduce the collection of indoor heat and lower down the expenses for ventilation and air conditioning ; furthermore, the transmission, reflection ratio and reflection color are ready for the selection by the users

    高性能熱所射鍍膜玻璃也稱為陽光控制鍍膜玻璃，是在優質浮法玻璃或其他基片上用真空磁控濺射的方法鍍多層金屬或金屬化合物薄膜而成，可有效控制玻璃對太陽能的反射、透過和吸收，也就是說允許足夠的自然光進入室內用於採光，還能把大部分太陽光輻射熱反射掉，減少室內熱量的積聚，降低通風及空調的費用，而且可以根據客戶的需求，靈活選擇透過率，反射率及反射顏色。
  4. Chicking number of mining and heading faces with air quantity and stopping production beyond mine ventilation capacity

    以風量核定礦井採掘工作面個數遏制礦井超通風能力生產
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