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当量比     
相关语句
  equivalence ratio
    The critical energy as the equivalence ratio (j)=2 was much more than that as =1. This result was consistent with the experimental one in gas detonation.
    当量比φ=2时所需的点火能量比φ=1时所需的点火能量大得多。 这一点,两相爆轰与气体中的爆轰点火能量的实验结果是一致的。
短句来源
    Results demonstrate that the relationship of critical initiation energy and equivalence ratio shows an "U" shape curve, the cell size is also.
    燃料云雾的临界起爆能和爆轰胞格尺寸均与当量比成一“U”形曲线关系,并且云雾爆轰最敏感点并不是对应于等化学当量的混合物而是偏向于富燃料;
短句来源
    The results show that there are a minimum of the critical initiation energy for a at the equivalence ratio 1.05,1.12,1.15,1.17 for the PO air, C 6H 14 air, C 10 H 22 air and C 5H 8.68 air respectively.
    癸烷 -空气混合物当量比为 1.15时 ,其临界起爆能值最小 ; 工业燃料C5H8.68-空气混合物当量比为 1.17时 ,其临界起爆能值最小。
短句来源
    Under the condit ions of the experimental system, there is minimum critical initiation energy f or propylene epoxide air at equivalence ratio of 1.05, the hexane air at eq uivalence ratio of 1.12, and the decane air at equivalence ratio of 1.15 respe ctively.
    实验发现,当PO 空气混合物、正己烷 空气混合物及癸烷 空气混合物的当量比分别为1.05、1.12及1.15时,其临界起爆能均最小;
短句来源
    (2) Improving the sooted-foil technique, the detonation cellular structures of several fuel-air mixtures are studied respectively under the normal pressure and negative pressure. Evident imprints are gained and the relationship among detonation cell size and initial pressure, equivalence ratio, initiation energy is too obtained.
    (2) 在改进了烟迹技术之后,在常温常压和常温负压两种条件下研究了上述几种燃料的气云爆轰胞格结构,得到了清晰的胞格烟迹,获得了燃料的胞格尺寸分别与初始压力、当量比以及起爆能之间的关系。
短句来源
更多       
  equivalent ratio
    When the other venting conditions were fixed, the probability of the secondary explosion in low equivalent ratio(less than 1.0) of fuel-air mixtures was lower than the high (more than 1.0).
    在其它泄爆条件不变时,当量比小于1时二次爆炸的概率小于当量比等于或大于1。 同样,只改变泄爆膜强度,而其它条件不变时,脆性低强度泄爆膜发生二次爆炸的概率较小。
短句来源
    In this paper, with a cylindrical vented vessel connected to a duct, the experiments on the venting to air under different venting conditions (failure pressure, vent area, equivalent ratio of the methane-air gas mixture and the location of ignition source) were performed and the pressure-time profiles of the external flow field were obtained.
    本文利用自行设计的带导管的柱形泄爆装置,对不同泄爆条件(即泄爆压力、点火位置、泄爆面积和初始甲烷-空气预混气当量比)下向空气中泄爆的情形进行了实验,获得了内外流场的压力历史。
短句来源
  equivalence ratios
    The direct initiation of detonation in a pr op ylene epoxide spray in air, a hexane spray in air and a decane spray in air has been studied respectively using a vertical shock tube with a diameter of 240mm. The critical energy for the direct initiation of detonation has been measured fo r the three fuel air mixtures at different equivalence ratios.
    在直径240mm的立式激波管中环氧丙烷(PO)、正己烷、癸烷分别与空气混合进行了直接起爆,测定了不同燃料、不同当量比的云雾直接引爆的临界起爆能。
短句来源
    The critical energy for the direct initiation of detonation has been measured for above three fuel air mixtures of different equivalence ratios.
    在该实验系统条件下 ,发现 PO-空气混合物当量比为 1 .0 5时 ,其临界起爆能值最小 ;
短句来源
    The critical energy for the direct initiation of detonation has been measured for above four fuel air mixtures of different equivalence ratios.
    在本实验系统条件下 ,发现 PO-空气混合物当量比为 1.0 5时 ,其临界起爆能值最小 ; 正己烷 -空气混合物当量比为1.12时 ,其临界起爆能值最小 ;
短句来源
  the equivalence ratio
    The critical energy as the equivalence ratio (j)=2 was much more than that as =1. This result was consistent with the experimental one in gas detonation.
    当量比φ=2时所需的点火能量比φ=1时所需的点火能量大得多。 这一点,两相爆轰与气体中的爆轰点火能量的实验结果是一致的。
短句来源
    The results show that there are a minimum of the critical initiation energy for a at the equivalence ratio 1.05,1.12,1.15,1.17 for the PO air, C 6H 14 air, C 10 H 22 air and C 5H 8.68 air respectively.
    癸烷 -空气混合物当量比为 1.15时 ,其临界起爆能值最小 ; 工业燃料C5H8.68-空气混合物当量比为 1.17时 ,其临界起爆能值最小。
短句来源
    Under the conditions of this experimental system, there are a minimum of the critical initiation energy for a propylene epoxide air at the equivalence ratio Φ =1.05, for a hexane air at the equivalence ratio Φ =1.12, for a decane air at the equivalence ratio Φ =1.15 respectively.
    正己烷 -空气混合物当量比为 1 .1 2时 ,其临界起爆能值最小 ; 癸烷 -空气混合物当量比为 1 .1 5时 ,其临界起爆值能最小 .
短句来源

 

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      equivalence ratio
    Ignition delay time behind a reflected shock wave is measured for a lean propane-air mixture with an equivalence ratio of ? = 0.5 in wide temperature and pressure ranges (T = 880-1500 K, P = 2-500 atm).
          
    Both experiment and numerical simulation were made at inlet temperature of 553 K, inlet velocity of 3 to 7 m/s and equivalence ratio of 0.3 to 0.5.
          
    The combustion timing advances with the increase of DTBP concentrations, coolant temperature and equivalence ratio.
          
    The chemical form of the nitrogen affixed to the PP surface is strongly dependent on the flame equivalence ratio.
          
    With both models, the dependence of the results on the stoichiometric coefficient and the equivalence ratio can be expressed in an explicit manner.
          
    更多          
      equivalent ratio
    The nuclease activity was either suppressed or stimulated in the presence of PCMB depending on the C7H5O2Hg+ to nucleotide equivalent ratio.
          
    When Cu(II) bis(isobutyl) dithiocarbamate was used in an equivalent ratio with an initiator, the polymerization of MMA proceeded as a well-controlled process and yielded a monodisperse polymer.
          
    When Cu(II) bis(isobutyl) dithiocarbamate was used in an equivalent ratio with an initiator, the polymerization of MMA proceeded as a well-controlled process and yielded a monodisperse polymer.
          
    A model approach to inflation is generated through a newIS-LM analogous synthesis of money, output and prices incorporating several capacity equivalent ratio variables of the product, the factor and the money markets.
          
    The high contribution of (Ca+Mg) to the total cations, high concentration of dissolved silica, relatively high (Na+K)/TZ+ ratio (0.3) and low equivalent ratio of (Ca+Mg)/(Na+K) suggests combined influence of carbonate and silicate weathering.
          
    更多          
      equivalence ratios
    Under such conditions we have calculated extremely small lethal equivalence ratios in demes where probably a great deal of consanguinity takes place.
          
    Results are presented for initial pressuresPo and equivalence ratios Φ ranging from 0.3 to 1 bar and from 1 to 2 respectively, for the two initial temperaturesTo, 123 K and 293 K.
          
    Mixtures of hydrogen, ethylene, propane, and methane with air at ambient conditions over a range of equivalence ratios are used.
          
    For equivalence ratios less than approximately 1.2 the detonation exhibits a short-period oscillatory mode, characterized by high-frequency, low-amplitude waves.
          
    The acetylene fluorescence signal is easily detected in propane flames over equivalence ratios from 0.6 to 1.2, although it increases under fuel-rich conditions.
          
    更多          
      the equivalence ratio
    With both models, the dependence of the results on the stoichiometric coefficient and the equivalence ratio can be expressed in an explicit manner.
          
    These initial conditions are expected to depend mainly on four parameters: the equivalence ratio of the mixture, the amount of the initial energy deposition, the initial temperature and pressure of the mixture.
          
    As forCH4/C4H10 mixed fuel, detonation velocities and detonation limits as a function of the equivalence ratio of the whole mixture of mixed fuel coincided with those ofCH4 single fuel.
          
    The numerical results show that the equivalence ratio $\Phi$ of the gas-mixture is high enough in order to have a non-reactive gas close to the wall which keeps constant the hydrogen temperature along the centre-body.
          
    The equivalence ratio (test/reference) for the pharmacokinetic characteristics AUCnormwas 1.03 (geometric mean; 0.95-1.11, 90% confidence interval) and Cmax,norm1.01 (0.94-1.08).
          
    更多          


    The critical initiation energy for detonation of butane air mixtures was measured in confined (shock tube tests) and unconfined (plastic bag tests) conditions. Based on the concept of explosion length proposed by Ramamurth, a formula for estimating the initiation energy of detonation under unconfined condition was presented. Good agreement was found between the formula and experiments.

    本文在矩形激波管内和无约束条件下分别测定了不同当量比的丁烷和空气混合物的临界起爆能,并利用Ramamurth提出的爆炸长度的概念,推导出可以很方便的由平面起爆估算无约束起爆临界起爆能的公式。根据此式估算的起爆能结果与实验结果吻合较好。

    This paper presents the experimental results of the initiation and stabilization of an oblique detonation by launching a hypervelocity projectiles at velocities of 1700~2100m/s,into H 2 air mixtures.The influences of the conical vertex angle,the velocity of projectile and equivalence ratio of combustible mixture on the generation of the standing oblique detonation are discussed.

    给出了锥形弹丸以 16 0 0~ 2 10 0m/s的速度射入预混的氢 空气混合介质中形成驻定斜爆轰波的试验结果 ,并讨论锥顶角、飞行体速度以及可燃介质当量比等因素对形成驻定斜爆轰波的影响

    In this paper, the experiments were conducted in a vertical shock tube, critical initiation energy of some fuel and air mixture was measured. Meanwhile these results were used to calculate theoretical critical initiation energy of fuel air mixture in unconfined conditions, and calculated results agree well with experimental ones. The investigation results maybe of directive purpose on accidental explosion prevention, and on application researchs in military.

    采用自行设计的立式激波管 ,测定了几种燃料与空气混合物不同当量比时的临界起爆能 ,并且从理论上将激波管内得到的起爆能数据外推到无约束条件下的临界起爆能 ,理论结果与实验值吻合较好。这一结果对预防意外爆炸事故的发生以及研究其在军事上的应用具有重要的参考价值。

     
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