換氣效率 的英文怎麼說

中文拼音 [huànqìxiàolǜ]
換氣效率 英文
ventilatory efficiency
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 換氣 : 1 （屏氣后再次呼吸） take a breath （in swimming）; aeration2 （通風） change of air換氣風扇 scav...
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. 3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant

    對鍋爐本體進行了燃料燃燒計算、爐膛結構熱力計算、對流受熱面結構熱力計算、鍋爐給水加熱器結構參數設計、煙道阻力計算及鍋爐元件強度校核等；改進了水冷壁布置使換熱效果更好，減少輻射換熱損失；改進對流段結構，更充分的利用爐膛出口煙氣余熱，提高熱效率；並且進行了煙氣阻力計算、熱效率計算和能量平衡測試，對改進后的稠油燃料和改進前進行了對比，燃燒狀況和熱效率有明顯改善。
  2. The most studies were focused on the influence of soz on photosynthetic organ e. g. chloroplast in vitro and fumigating with high concentrations of soz. thus, those experiments could not reflect the real state of plant suffering from soz pollution in nature condition and it was very difficult to find out the mechanism of soz affecting photosynthesis

    我們採用與自然條件相近的野外開頂式熏氣裝置，用0 . 8571mg m ~ 3的低濃度so2長期處理油桐苗木，用近期發展起來的對植物無傷害作用的熒光測定技術和葉紅外820nm吸收測定技術，對長期低濃度so2對光合能量轉換效率及其機理進行了研究。
  3. Between glass - cover board and endothermic board, honeycomb is placed, which can eliminate heat loss caused by air natural convection and greatly reduce heat loss caused by radiation, and hence a better transfer heat efficiency

    而在透明玻璃蓋板和吸熱板之間放置蜂窩結構，基本上能消除吸收表面和蓋板之間的空氣自然對流熱損失，並可大大降低輻射損失，顯著提高集熱器的熱轉換效率。
  4. The works would include creation of negative pressure gradient in wards, provision of 100 per cent fresh air supply and dilution of bioload in sufficient air change rates, installation of high efficiency particulate air filters to filter out droplets and aerosols, and the provision of en - suite toiletshower facilities in ward cubicles where building structure and existing building services installations permit

    工程將包括在病房內製造負氣壓坡度；以足夠的換氣率，供應百分之百的新鮮空氣以及稀釋空氣中的微生物含量；安裝高效能空氣粒子過濾器，過濾飛沫和噴霧；以及在建築結構和現有屋宇裝備許可的情況下，在病房單間內提供獨立洗手間和淋浴設施。
  5. Thermodynamic methods were used to optimize gasifier, shift reaction and co2 removal, and methanol synthesis processes. polygeneration is a promising system to make the best use of thermal energy with different qualities to achieve high environmental and economic benefits

    本文以熱力學方法研究了多聯產系統的熱效率和火用損失，對氣化爐、水煤氣變換和脫碳以及甲醇合成等單元作了優化分析，指出了多聯產系統在能量利用方面的合理性，對其環境效益和經濟效益的綜合評估方法進行了初步探索。
  6. It is shown that the fin efficiency, air flow - rate, and fin performance are significantly decreased while pressure of the air side is increased when frosting occurs at the exchanger

    研究發現，換熱器結霜引起了翅片效率、空氣流通率及翅片性能的顯著降低，同時還伴隨著空氣側壓力降上升。
  7. Along with the advent of the highly efficient turbofan jet engine, used today on the majority of commercial aircraft, came a new and challenging problem for maintenance personnel. the repair and replacement of the abradable liner seal, sometimes also known as the fan track.

    在大多數商用飛機使用高效率的渦輪風扇噴氣發動機時代到來的同時，飛機維修人員也面臨著新的挑戰，即如何修理和替換發動機上的耐磨損內襯密封條，有時候也被稱為風扇軌道
  8. The results show that : the lose of pressure is small when air velocity and the longth of honeycomb potter heat storage bed are varied ; but the switch time of air and the bulk of storage bed play important roles as regard its dynamic thermal performance

    結果表明：蜂窩型陶瓷蓄熱體換熱器的壓力損失隨著空氣流速以及蓄熱體長度的不同而變化，但總體上說，其壓力損失並不大；四通換向閥的換向周期和蜂窩陶瓷蓄熱體換熱器的體積等是影響其溫度效率和熱回收率等熱性能的重要因素。
  9. Abstract : the in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging

    文摘:針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況，提出了若干技術改造措施包括，增大對流管表面積以增大對流段的熱負荷；增加輻射管的換熱面積；修正煙囪高度；換用新型燃燒器，變自然通風為強制供風，以增大燃燒器的發熱量，減小過剩空氣系數，節省燃料2 % 3 % ；在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度；採用高溫輻射塗料增強輻射換熱效果，從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。
  10. The in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging

    針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況，提出了若干技術改造措施包括，增大對流管表面積以增大對流段的熱負荷；增加輻射管的換熱面積；修正煙囪高度；換用新型燃燒器，變自然通風為強制供風，以增大燃燒器的發熱量，減小過剩空氣系數，節省燃料2 % 3 % ；在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度；採用高溫輻射塗料增強輻射換熱效果，從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。
  11. Displacement ventilation also has higher energy using ration than other supply air systems, ie it has higher temperature effectiveness, and that displacement ventilation system always has part quantity of heat lying upside area of room, air supply outlet lies at low side, supply air direct come into workaround, and only absorb heat and humid of workaround, assure satisfaction of the design conditions of workaround

    對于置換通風其節能性也優于其它的送風方式，即其溫度效率高，而且置換通風總有部分熱量處于房間上部區域，送風口設在低部，送入空氣直接進入工作區，只是吸收了工作區的熱、濕量，保證工作區的氣象參數滿足要求。
  12. Since the 1980s, with the developing of air - condition technology, men begin thinking much of room condition quality, displacement ventilation has been given a good favour for its higher ventilation effectiveness and air exchange efficiency

    二十世紀八十年代以來，空調技術的發展開始對室內環境質量有了足夠的重視，置換通風因其較高的通風效率和換氣效率而受到人們的青睞。
  13. Using lithium bromide aqueous solution as liquid desiccant, adopting the total heat transfer rate and enthalpy efficiency to describe the combined heat and mass transfer performance and the moisture removal rate and regenerative efficiency to describe the mass transfer performance of the regenerator, explores the effect of air and desiccant inlet parameters on the regenerator performance by experiment, and compares the result obtained with those of other counter - flow configurations previously published

    以溴化鋰溶液為除濕劑，採用總換熱量、全熱效率描述再生器的熱質交換總體效果，採用再生量、再生效率描述傳質效果，實驗測試了溶液和空氣的進口參數對再生器性能的影響，並與逆流再生器的實驗結果進行了比較。
  14. Ventilation efficiency : an evaluation of the pollutant removal capacity of a ventilation system

    名義時間除去平均空氣齡的兩倍為換氣效率，表示空氣通過房間的快慢。
  15. Combining burning and heat exchange as a whole, this furnace adopts the novel indirect heating technology of performing heat exchange at high temperature position of the furnace, inside which, smoke and air flow separately, heating has no contamination, thermal efficient reaches 60 - 75 %, therefore, it features speedy temperature rise, compact dimension, convenient installation, reliable operation and lower cost ( only half of that by boiler heating system )

    該爐集燃燒與換熱為一體以爐體高溫部分進行換熱的最新間接加熱技術，煙和空氣各行其道，加熱絕對無污染，熱效率高達60 - 75 % ，升溫快，體積小，安裝方便，使用可靠且價格低，與一噸鍋爐相比，該加熱系統只相當于鍋爐加熱系統價格的一半。
  16. The immersion electrical heater is chiefly applied in the direct contact mode of fluid heating. it features fast heat exchange and high thermal efficiency. it has the varieties of water heater, oil heater and gas heater. its heating element power density, i. e. the power per unit of heating area of the heating element, is an important parameter of the electrical heating element, which has a direct bearing on the performance and working life. the working out of the value is a highly specialized problem, being under the influence of many factors ( media flow rate, tempt, physical and chemical properties and direction in which the medium flows past the element etc )

    浸入式電加熱器主要用於直接對流體接觸加熱的場合，具有熱交換快，熱效率高等特點，分為水用加熱器、油用加熱器、氣體用加熱器，加熱元件的功率密度：即電加熱元件單位發熱面積上的功率，它是電加熱元件極重要的參數，直接影響加熱器的使用性能及使用壽命，它的取值是一個非常專業的問題，受到許多因素的影響（如介質的流速、溫度、物理和化學性質及介質流過加熱元件的方向等等） 。
  17. The results of simulated and practical application have proved that the system is able to enhance the heat - transfer efficiency, stabilize the furnace condition, economize the energy and simplify the operating procedure

    模擬試驗與實際運行結果表明，該控制器通過對廢氣溫度變化的控制，可以在滿足工藝要求的條件下提高熱交換效率、穩定爐況、節約能源、易於實現。
  18. These results can be used as a reference for optimization of polygeneration systems. the syngas generated from coal needs shifting reaction to adjust h2 / co ratio to fit the methanol synthesis requirement

    由煤制得的合成氣經過變換反應達到滿足甲醇合成要求的氫碳比，這一過程消耗了能量但提高了甲醇產率，在不同的甲醇產率下多聯產系統的效率隨之改變。
  19. The prototype test results indicate : voltage mode and current mode ac - ac mode ac / ac converters with high frequency link have the advantages such as high frequency electrical isolation. simple topology, two - stage power conversions, high power density, bidirectional power flow, good line current waveform, no audio noise, high converting efficiency, and high input power factor etc. this kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply, electronic transformer, ac regulator, and wave converter etc

    試驗表明，這類變換器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac hfac lfac ） 、功率密度高、雙向功率流、無音頻噪音、變換效率高、網側功率因數高等優點。為新一代正弦交流穩壓器、電子變壓器、交流調壓器、同頻波形變換器的實現奠定了關鍵技術基礎。
  20. Evaporative cooling can keep a low and uniform wall temperature. it can reduce the volume, the weight of the electrical equipments. meanwhile, it is safe and reliable even in short - time emergency overloads, so this cooling method really shows great promise on the application of large electrical equipment

    採用此種冷卻方式的大型變壓器等電氣設備換熱效率高、能耗少；發熱表面溫度均勻；結構緊湊、製造所需材料減少、製造成本下降；壽命延長；重量減輕、體積減小；安全可靠。
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