air flow conditions 中文意思是什麼

air flow conditions 解釋
空氣流動條件
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  • conditions : （旅遊合同中）條件或服務項目
  1. Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing

    文摘:應用計算機模擬的方法，在不考慮燃燒的冷態情況下，研究了熱風爐燃燒室內的氣流分佈規律.在此基礎上，比較了2種不同設計方案的氣流流動特徵，尤其是研究了燃燒器空氣通道內阻流板的設置與否對空氣和煤氣的流動和混合的影響.結果表明，阻流板的設計對加強空氣和煤氣的混合有著極為重要的作用，同時也增加了空氣管道的阻力損失，在同樣的工況條件下需要提高管道系統的總壓力
  2. The effect of air distributor on the flow fields was studied with emphasis. the working conditions of the bubble column simulated in the numerical study were as same as in the experiments. the velocity profile at axial direction showed a peek in the center, and a backward flow near the wall when usl / usg < 19. 6

    鼓泡塔內軸向液相速度的徑向分佈呈塔中心峰值、壁面附近倒流形式，且與氣相折算速度大小有關，當液相折算速度一定時，隨氣相折算速度增大而愈加陡峭，返混也劇烈。
  3. Using the program, the thesis studied the status of the chilled water distribution in the system when operating in the practical conditions, and analyzed the performance of the system when adopting different controlling methods of pumps and the chilled water flow in the ahus ( air handling unit ) during the course of converting the constant chilled water flow system to variable chilled water flow system

    利用所編寫的程序研究了冷水系統實時工況下運行時，冷水系統內水量的實際分佈情況；分析了定水量系統改造為變水量系統時，採用不同的水泵控制方案及末端採用不同的水量控制方法時的系統性能。
  4. Finally, we can not use electric power but the engine of bus or subsidiary engine to drive air compressors of bus air conditions. because the change range of turnaround speed of engine is very wide, that brings difficulties in controlling the rate of flow of cold - producing medium. in the control of bus air - conditions, preventing evaporator from freezing to make the air - conditions work with high efficiency and controlling the temperature of railway carriage are the basic tasks in air - condition control

    與一般的建築空調相比，汽車空調的工作環境惡劣，條件差，控制難度要增加很多，主要體現在以下幾個方面：一是車外熱負荷變化大，難以確定控制參數；二是要求空調負荷大，而且要控制空調使其降溫迅速：三，不便於用電力作為動力源，必須用汽車發動機或輔助發動機來帶動壓縮機，當採用汽車發動機作為動力源時，由於汽車的車速變化大，發動機轉速的變化可從600r min到4000r min ，壓縮機轉速與發動機轉速成正比，其轉速變化高達7倍，給空調系統製冷劑流量控制帶來困難。
  5. After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %

    摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定，確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒，增設煙氣含氧量分析，可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下，極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果，從而降低排煙溫度45 ，減少加熱爐排煙損失，節約了煤氣量6 %以上。
  6. When nals was used as the collector in the process, the optimal conditions were the ph of feed solution 5. 0 - 6. 0, air flow rate 100ml / min, the liquid column depths 20cm, the surfactant concentration determined by its cmc and feed concentration. under this condition, the 3 can be above 20. also, the optimal ph ( 5. 0 ) was calculated theoretically for the recovery of the cu ( ii )

    對以十二烷基硫酸鈉為捕集劑的泡沫吸附分離過程的工藝參數進行了研究，並得出本分離系統所確定的最佳工藝參數為： ph5 . 0 6 . 0 ，氣體流量100ml min ，液位高度20cm ，最佳表面活性劑濃度由其臨界膠束濃度和原料液濃度確定，此時（濃縮比）可達20以上；同時還從理論上推算出泡沫吸附分離銅的最佳ph值范圍為5 . 0左右。
  7. Carried out experimental research on conditions of different point heat source ( single, double and many heat sources ), and analyzed the influence of such factors as temperature of air - in, amount and distribution of inlets and outlets, heat emission quantity of heat sources and so on, on distribution of indoor air temperature 、 shape of plume flow 、 heat lamination height 、 ventilation efficiency 、 thermal comfort and so on

    考慮不同點熱源（單、雙及多點熱源）條件下地板送風的系統特性，通過實驗研究，分析了不同送風溫度，送排風口數量及位置，熱源發熱量的大小等因素對室內溫度分佈、羽流流態、熱力分層高度、通風效率、熱舒適性等的影響。
  8. By carrying on experimental study to the ignition performance of the natural gas high speed burners under different conditions, the influence factors are probed such as the type of the gas source, the combustion air pressure, the gas pressure, the proportion of air and gas, gas flow and electrode to the ignition performance of natural gas high speed burner

    摘要在不同的條件下對天然氣高速燒嘴的點火性能進行了實驗研究，探討了氣源種類、助燃空氣壓力、燃氣壓力、空氣與燃氣的比例、氣體流量、點火電極等因素對天然氣高速燒嘴的點火性能的影響。
  9. Conditions and control measures of air flow reversion by mine fire pressure

    礦井火風壓使風流逆轉的條件及控制措施
  10. In this paper, maccormack explicit time - split scheme, baldwin - lomax algebraic turbulent model and two - steps hydrogen - air nonequilibrium chemical kinetics model are employed to simulate the 2 - d flow fields in a fixed geometry scramjet combustor in different injecting way of fuel in different flight conditions. the results show, in the same entrance condition, the operating mode of scramjet combustor is influenced by the control of fuel

    本文採用maccormack顯式時間分裂法、 b - l代數渦粘性湍流模型及氫-空氣兩步非平衡化學動力學反應模型，模擬了在不同的飛行馬赫數條件下，固定幾何的雙模態燃燒室在不同供油規律下的二維燃燒流場。
  11. Because the basic principle of variable air volume system is to meet the comfort conditions indoor by varying air flow rates, air distribution is rather important

    由於變風量系統是通過改變送風量來滿足室內舒適要求的系統，所以氣流分佈對于變風量系統是相當重要的。
  12. Experiments have been taken under the conditions of inlet pressure from 0. 25mpa to o. tompa, inlet temperature from 12 ? to 32 ?, and the mass volume flow from om3 / h to 30m3 / h. some valuable results have been obtained through a large quantity of experiments as follows. the inlet temperature of the air has certain influence on the energy separation of vortex tube

    在大量實驗研究的基礎上，證實了在入口壓力0 . 25mpa 0 . 7mpa之間，入口溫度（從12 32之間）對渦流管的冷熱效應有一定的影響，並且隨著入口溫度的升高，渦流管的製冷性能增加，而制熱性能有所降低。
  13. The flow fields of two - dimension for fuel - air equivalence ratio = 0. 35 are respectively calculated. comparisons made with experimental data obtained at similar ( but not identical ) flow conditions were encouraging

    得到了油氣當量比= 0 . 35的氫燃料超燃沖壓發動機燃燒室流場的精細結構。
  14. Abstract : in order to protect environment, it is very important to explore anew refrigeration method. for its unique characteristic, thermoelectric refrigeration is applied in some conditions. numerical simulation has been developed for the air - cooled thermoelectric air - conditioner by experimental simulation on heat - insulating materials with different thickness, structure - shapes, work - conditions and air - flow capacities. the model and the method have been verified. the effects of the figure of merit of thermoelectric material and the heat transfer coefficient of cool / heat side on the performance of the air - conditioner are analyzed by the model

    文摘:建立了風冷熱電空調器數值模擬模型，對空調器進行了模擬計算.在對風冷熱電空調器研製的基礎上，進行了最佳隔熱層厚度、不同結構形式、變工況、變風量和復現性實驗，驗證了模擬程序的可靠性，並應用模擬程序對熱電材料的優值系數和空調器冷、熱端的傳熱系數進行了分析
  15. By the use of discrete phase model, the gas - solid two phase flow under different conditions were simulated. the trajectories of particles were obtained, and the influence of secondary air and particle diameter distribution were investigated. and by the compare of experimental results and numerical simulation results, the reference for the further study of numerical simulation of gas - solid two phase flow in cfb was supplied to some degree

    運用顆粒軌道模型對床內不同工況下的離散相顆粒軌跡進行了數值模擬，得出了二次風、床料粒徑分佈等因素對顆粒軌跡的影響情況，並通過模擬結果與實驗現象的對比，為循環流化床內氣固兩相流動的進一步數值模擬研究提供了一定的基礎。
  16. Most of present study of 3 - d revolve intake is mainly on the self - intake state. that is to study the air flow in different valve lift, but there is no relative report on the turbo operating conditions in our country

    在氣道穩態試驗時，當進氣壓力增加到大於20 . 4kpa后，真空泵就不能正常的工作而使得吸氣壓力達不到試驗的要求。
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