ventilation ratio 中文意思是什麼

ventilation ratio 解釋
換氣比率
  • 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。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. In this paper, we have discussed the influences of supply air temperature, supply air quantity, supply air turbulence, as well as mixing ratio of supply unit. all of above parameters are important for the extension of the adjacent zone. consideration of all the parameters is essential for a good system design which can ensure the advantage of displacement ventilation

    本文研究了各種送風參數對鄰接區的大小的影響，結果表明：送風溫差、送風量、送風湍流度以及送風口的摻混量等因素對其都有重要影響，在設計時必須仔細平衡這些因素，確定合適的送風口和送風參數，才能使設計更加合理，充分發揮出置換通風系統的優勢。
  2. Clean and disinfect contaminated areas and items promptly and thoroughly with household bleach diluted in a ratio of 1 in 49 units of water ; maintain good indoor ventilation

    立即用稀釋的家用漂白水以1份漂白水加49份水清洗和消毒染污的地方及物件。
  3. The results indicate that the critical ventilation speed is direct ratio to the heat release rate and reverse ratio to the height of the smoke barrier which lies in the stairs ' access between platform and concourse

    研究表明：臨界通風速度與火災熱釋放速率成正比，與站臺和站廳間樓梯口處的檔煙垂壁高度成反比。
  4. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation

    數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。
  5. 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。
  6. Studying the formulation of a code of practice for introducing a " green building labelling " system, and fully assessing the environmental performance of buildings during the design stage and after their being put to use on the basis of energy efficiency, greening ratio, air ventilation, renewable energy, household waste treatment and design parameters which are conducive to good weather and urban environment ; and

    研究制訂實務守則，推行"環保樓宇標簽制度" ，結合能源效益綠化比率空氣流通可再生能源家居廢物處理，以及有助達致美好氣候和城市環境的設計規范，在設計階段及使用后全面評估樓宇的環境表現及
  7. Presents the characteristics of recreational natatoria, discusses the modes of hvac systems, heat and moisture load calculation, ventilation rate determination and winter ventilation operation adjustment, and provides two calculation methods of outdoor humidity ratio in transition seasons

    摘要介紹了娛樂性游泳館的特點，探討了暖通空調系統形式、熱濕負荷計算、通風量確定、冬季通風運行調節等問題，提出了兩種過渡季室外含濕量計算方法。
  8. Because of the large expansion ratio of liquid - to - gas, it is very important to provide adequate ventilation in areas where liquid oxygen is in use

    因為液體到氣體的大膨脹率，為正在使用液氧的地方提供充分的通風非常重要。
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