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pressure drop resistance
相关语句
  相似匹配句对
     drop.
     drop,第1天。
短句来源
     Investigation on Pressure Drop Oscillation
     加热U型管内压力降型脉动发生界限研究
短句来源
     Study on the Pressure Drop in Hydrocyclone
     水力旋流器压力降的研究
短句来源
     pressure;
     压力;
短句来源
     b and the resistance to the disease.
     叶绿素B和叶绿素总量与抗病性无明显相关.
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By the fullscale test of tunnel fire, with automatically acquisition data system and 3D distribution of measuring points, it was revealed that the time-dependents of the smoke-flowing temperature, oxygen concentration, velocity of inlet and outlet in burning branch, pressure drop of fan and its characteristics parameters during the period of the fire-throtting; it is correspondence to the process of quick devolatilization of fuels and volatile burning.Temperature peak is orderly behind troughs of...

By the fullscale test of tunnel fire, with automatically acquisition data system and 3D distribution of measuring points, it was revealed that the time-dependents of the smoke-flowing temperature, oxygen concentration, velocity of inlet and outlet in burning branch, pressure drop of fan and its characteristics parameters during the period of the fire-throtting; it is correspondence to the process of quick devolatilization of fuels and volatile burning.Temperature peak is orderly behind troughs of oxygen concentration and throttling function and pressure drop (resistance) peak of fan, so it is not correct traditionally to calculate the maximum resistance by the maximum temperature. The factors of influence on throttling include the characteristic parameters of network system and fan, the position of fire taking place, the direction and its increasing rate of heat potential and heat resistance.

通过实际规模的火灾试验, 三维空间布点, 全自动数据采集, 详尽地揭示了火灾节流效应发生时烟气温度、浓度、燃烧分支的入口与出口流速和风机风压时序变化的非稳态特性以及典型参数; 试验发现, 节流时段与挥发分的快速析出和燃烧是一致的, 温度峰滞后于氧气浓度谷点、节流函数最小点和压力峰(阻力峰), 使用温度峰值计算最大阻力的传统方法是错误的. 提出了用节流系数描述节流度的方法, 由此导出了影响节流效应的因素为系统的特性参数、风机特性参数、火灾发生的位置、火风压和热阻的方向及增长速率.

 
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