氫氣壓力 的英文怎麼說
中文拼音 [qīngqìyālì]
氫氣壓力
英文
hydrogen pressure-
The primary theory of absorption and desorption was also explained. the effects of primary process parameters, such as hydrogen pressure, time and temperature on the magnetic properties of ndfeb have been researched. the structure and magnetic properties have been analyzed by means of optical metallographic microscopy, scanning electronic microscopy, x - ray diffraction analysis, infrared oxygen detector and magnetic properties measurement
本文設計了燒結ndfeb的氫爆制粉設備，對設備調試以及使用過程中出現的主要問題進行了簡要的說明，提出了一系列解決方法；闡述了吸氫、脫氫的基本原理；研究了氫氣壓力、通氫時間、氫爆溫度等基本工藝參數對磁性能的影響；利用金相顯微鏡和掃描電子顯微鏡， x射線衍射分析，紅外線測氧分析及綜合磁性測量儀等手段分析了材料的組織結構和磁性能。As compared with the pressure of carrier gas, the subatmospheric pressure is more favourable condition to atomize the hydride, so the atomization temperature was lower ( about 650 )
由於硒化氫的原子化是在負壓下完成的，它將比常壓或載氣壓力下更有利於氫化物的原子化，因而使硒化氫原子化的最佳溫度降低。High energy explosive was used to create a powerful and planar shock wave for accelerating flyer plate to high velocity, and high pressure was produced when flyer impacting with the sample. in the experiments, the impactor was brass and target was ofhc copper. by measuring the shock wave velocities of hr2 steel, high - density glass, aluminium alloy ( ly12 / lf6 ), magnesium - aluminium alloy ( mb2 ), polymethyl methacrylate and air, shock pressure and release isentrope of ofhc copper have been obtained
採用化爆加載、平面波發生器和空腔增壓技術，以黃銅為飛片，無氧銅為靶板，測量了抗氫鋼（ hr2 ） 、重玻璃（ sio _ 2 ） 、鋁合金（ ly12 lf6 ） 、鎂鋁合金（ mb2 ） 、有機玻璃（ pmma ） 、空氣（ air ）和無氧銅（ ofhccopper ）各阻抗匹配樣品中的沖擊波速度，上述材料的hugoniot狀態參數c _ 0 、均為已知，由此確定了無氧銅的沖擊加載壓力和等熵卸載后的狀態，得到了等熵卸載路徑。We will start with a cubic inch of hydrogen at atmosphere pressure ( or the air pressure at the earth ' s surface )
我們從大氣壓力（即地球表面的空氣壓力）下的一立方英寸氫氣開始。The convective term is solved by ausm + ( a sequel to ausm which means " the advection upstream splitting method " ). the 7 species 8 steps model and 7 species 7 steps model of hydrogen / air is used in the hydrogen reacting flowfield, the 9 species 5 steps model of methane, the 10 species 10 steps model of ethane and the 10 species 13 steps model of kerosene are used in the hydrocarbon reacting flowfield, the results of the distributions of velocity, mach number, pressure, static temperature, total temperature, species mass fraction and the combustion efficiency are gained, and the numerical results of the pressure of hydrogen and methane are compared with those of the experiment
計算中通量項採用ausm +通量分裂格式，氫反應流場採用氫/空氣的七組元八方程模型和七組元七方程模型，碳氫反應流場採用甲烷的九組元五方程模型、乙烯的十組元十方程模型和煤油的十組元十三方程模型，得出了超燃發動機燃燒室流場的速度、馬赫數、壓力、靜溫、總溫和組元質量分數分佈及燃燒效率等性能參數，其中氫和甲烷的計算壓力分佈與實驗結果進行了比較。Moreover, it has been pointed out that the hydrogen engine used in ? cylinder injection with high pressure can increase volumetric efficiency and compression ratio, - therefore, the performance indexes in this engine, such as output power, thermal efficiency, range of thickness of mixture with normal operation and nox emission, can be improved, and it is possible for the engine to realize rapid combustion of thin mixture, so abnormal combustion, such as backfire, pre ? ignition, can be controlled effectively
指出了採用內部混合氣形成方式且高壓噴射的氫發動機，有利於提高充氣效率和壓縮比，從而改善發動機的動力性和經濟性；有利於擴展發動機正常工作的濃度范圍；並且有利於實現稀薄混合氣快速燃燒，從而可以有效地抑制早燃、回火及爆燃等異常燃燒和no _ x排放量。試驗指出了發動機的點火正時、噴射正時及噴氫量對發動機的性能、異常燃燒、 no _ x排放量有很大影響。Conventional approaches to compact hydrogen storage ? compressing the gas to up to 10, 000 pounds per square inch ( psi ) or cooling it down to cryogenic temperatures so that it liquefies ( around - 252 degrees celsius ) ? can attain only about half the energy density needed to fit enough fuel inside something the size of a gas tank
一般壓縮氫氣儲存槽所使用的方式，是將氣體壓縮使壓力達到每平方公尺700萬公斤重，或是冷卻到將近- 252使之液化，但這只能達到所需能量密度的一半，無法將整個氣瓶充滿。The method of optimization is the complex method. the objective function is the opration expenses of the hydrogen system. there were six decisive variables : the pressure and temperature of the high - pressure separator of vrds, gas ration to the prism unit from vrds unit and ssot unit, the pressure of the high - pressure separator of ssot and the entrance pressure of the cycle hydrogen compressor
優化問題以氫氣系統的運行費用函數作為目標函數，選擇了6個決策變量，分別為： vrds高壓分離器壓力、溫度、 vrds和ssot裝置排入prism的氫氣量、 ssot高壓分離器壓力和循環氫壓縮機入口壓力。The prepared sdse modified zirconum meinbrane was tested at the wider range of tcmperaure and pressure and differellt composihons of hydrogen mixturc gases ( i. e. different hydrgen panal pressure ) in order to examine the performance of this membrane and the sole hpermselechvity of the membrane. the results showed tha the purity of the permeated hydrgen is l00 % at the base of the detection greatest lower lanit of the qhle mass spectrometer, and there was no impurity gas passed, the permeating flux and permeability of this membrane are from several decades times to one decade times more higher than tha of a palladum membran in the range of from 593k to 773k, puv = 0. 2 ~ 0. 3mpa, pdn = 4x l04pa - - 0. lmpa, the hydrogen permeatng flux is increased with the difference of the squto root of pressure, and presents a linear relationship, the pressure seems has no influence on the permeablity, the permeabi1ity is decreased with the increasing of the temperature, and presents an exponential relationship, accondng to the fitting curve of the relationship betwen the permeability and the temperatur derived from the experimenta daa, in the range of 593k ~ 773k, pup0. 2 ~ 0. 3mpa, pha = 4 x l0 # pa ~ 0
在更寬的溫度范圍、壓差范圍內，在不同原料氣組成（即不同的氫氣分壓）條件下，對所制備的鋯表面改性膜進行了滲氫性能實驗，考核了膜對氫的唯一選擇滲透性，結果表明：在四極質譜的檢測下限內，只有氫氣存在，而無雜質氣體通過；在593k 773k溫度范圍內，鋯表面改性選擇滲氫膜具有高於鈀膜數十倍至十幾倍的滲氫流量和滲氫系數；其滲氫流量隨著膜兩側氫分壓平方根摘要差的增大而增大，並且呈線性關系；壓力對膜的滲氫系數幾乎無影響；膜的滲氫系數隨著溫度的升高而下降，井巨呈指數關系：根據對實驗數據所作滲氫系數與溫度關系曲線的擬合，在溫度593k 773k范圍內，壓差p 、 0二0Its dense metal membranes produce high purity hydrogen over a wide range of pressure and load
以緻密堆積金屬製成的薄膜可在大范圍的壓力與進料負荷下均可分離出燃料電池所需純度的氫氣。Appointing to the characteristic and operating condition of hydrogen compressor, the carrying capacity, the leakage and the film thickness of the dry gas seal are calculated by the theory of narrow groove
針對氫氣壓縮機的特點和具體的操作條件，利用窄槽理論對所設計的干氣密封進行了承載力、泄漏量及膜厚的計算。30 " is the project to produce 18ton / year synthetic ammonia and 30ton / year urea. the key equipment in the project are the copressor for the mixed gases of nitrogen and hydrogen and the compressor for carbon dioxide. reciprocating compressor as well as centrifugal compressor can be selected for this project. the different opinions for the selection of the compressor existed in 8medium scale fertilizer plants in which coal is used as the raw material. from the points of technology and cost, the analysis and comparison of using these two kinds of compressor were carried out. it is concluded that reciprocating pump is more appropriate
工程就是建成年生產能力達到18萬噸合成氨、 30萬噸尿素的項目，項目中的關鍵設備為氮氫氣壓縮機及二氧化碳壓縮機，壓縮機選型正介於往復式壓縮機和離心式壓縮機之間，國內各設計院在八家立項的以煤為原料的中化肥廠『 18 . 30 』工程初步設計中選何種類型的壓縮機爭論不休，本文從技術及經濟的角度對此作了分析比較，並推薦採用往復式壓縮機，以供參考。Nitrogen generator power consumption
氫氣發生器輸出壓力: 0 . 4mpa可調The stainless steel and carbon steel can be excellently bonded under lower pressure by using silver intermediate sandwich materials and the oxide film on stainless steel can be destroyed effectively by argon gas shielding in the heating process
結果表明，採用自製的銀基中間夾層材料可以使兩種母材在較低的壓力下實現良好的復合；加熱過程中採用氫氣保護能夠有效地去除不銹鋼表面緻密的氧化膜。Weight up y2o3 and ai2o3 with the mole proportion of 3 / 5. after sufficient grinding, we got the round pieces of f 20mm and thickness 5mm with 30mpa pressure. then sinter the pieces in the hydrogen atmosphere at 1700 ? for 5 hours
按照摩爾比為3 ： 5稱取純度為99 . 99的y _ 2o _ 3和al _ 2o _ 3 ，將配好的原料充分研磨混合，然後用30mpa的壓力壓製成f20mm 、厚度為5mm的薄片，在高溫鎢鉬爐中通流動氫氣，在1700下燒結5小時。Typically hydrogen is stored in pressure tanks as a highly compressed gas at ambient temperature
常溫下，氫氣通常以高度壓縮氣體的形式，貯存於壓力瓶中。分享友人