含气率 meaning in English
air voids
percentage air void
Examples
- The velocity , turbulent intensity , and reynolds stress of the liquid was measured with ldv , while the hold up , velocity of gas were measured with piv
用ldv测量液相时均速度、湍动速度和雷诺应力，用piv测量含气率和气泡运动速度。 - The influence of operating parameters , such as pump rotation speed , suction pressure and gas content , on the performance of a multiphase rotordynamic pump is investigated
用多相泵试验台架测试了泵转速、气体进口压力和含气率等操作参数对螺旋轴流式多相泵输送性能的影响。 - We make a theoretical analysis of the experimental results and draw some conclusions as follows : the saturated temperature r290 - oil mixture is higher than that of pure r290 at a same pressure . the temperature difference , which is called superheat temperature of refrigerant - oil mixtures , increases as the oil concentration and the vapor quality are increased at a certain saturated pressure and pressure has negligible effect on the superheat temperature of the mixture . ( oil concentration is 0 . 43 ? - 5 . 28 ? )
并根据实验结果进行理论计算，得出以下结论：天然制冷剂r290含油混合物的饱和温度高于相同压力下纯工质的饱和温度，这个温度差，也就是本文中提到的所谓制冷剂含油混合物的过热温度随混合物质量含气率、含油浓度的增加而增加，而饱和压力对过热温度的影响不大(含油率0 . 43 ? - 5 . 28 ? ) 。 - In pumping fluid with gas , pressure boost can be improved by enhancing the pump rotation speed , thereby improving the performance of the pump to a certain degree ; when the gas content is constant , by increasing the inlet pressure , the pressure boost can be enhanced and the pump efficiency be improved remarkably ; when the gas content is rather high , there will be a problem of matching between the gas pressure and the fluid pressure ; the performance of the multiphase pump can also be improved by means of rational design of buffer vessel and homogenizer
试验分析认为，气液混输工况下，提高泵转速可以提高增压，在一定程度上能改善多相泵的工作性能；含气率一定时，增加进口压力，可使多相泵增压值增大，泵效明显增加，最大含气率点后移，但含气率很高时，存在气液压力相匹配问题；改进缓冲罐和均化器的设计，有利于气液互相夹带，避免气囊产生，可改善多相泵的输送性能。