As the pre-evaporation time increases, the holes on the membrane surface becomes smaller and less, dense layer is becoming more evident with large and deep holes in supporting layer; 随着预蒸发时间的延长,膜表面的孔变小变少,膜的致密层越来越明显,支撑层有大而深的孔结构出现。
With short time pre-evaporation and low temperature coagulation bath, membrane's supporting layer is small and uniformity sponginess network-structure. 当预蒸发时间较短和凝固浴温度较高时,膜的支撑层为典型的小而均匀的海绵状网络孔结构,基本看不出过渡层;
Porosity increases along with the increasing of coagulation bath temperature, and doesn't have relation to pre-evaporation. 孔隙率随着凝固浴温度的上升而上升,而与预蒸发时间的长短没有关系;
The water flux increases along with the prolonging of pre-evaporation and the increasing of coagulation bath temperature. 水通量随着预蒸发时间的延长、凝固浴温度的上升而上升;
The effects of pre-evaporation time on the structure and properties of PESmembranes by two-step formation. 研究了铸膜液的预蒸发时间对二次成形聚醚矾膜结构与性能的影响。
The retention rates of Albumin bovine decreases when coagulation bath temperature increases, and first decreases, then increases when pre-evaporation time prolongs. 对牛血清白蛋白的截留率随着凝固浴温度的上升而下降,随着预蒸发时间的延长先略有下降然后上升。
Realization of Pre-evaporation Combustion of Light Oil through the Use of a Cold Flame Phenomenon 利用冷焰现象实现轻油的预蒸发燃烧
Currently the low pollution combustion chamber mainly has the types of grade fuel combustion, oil-poor premixed pre-evaporation combustion chamber, oil-poor direct injection combustion chamber and oil-rich combustion-quench-oil-poor combustion chamber. 目前的低污染燃烧室主要有燃油分级燃烧室、贫油预混预蒸发燃烧室、贫油直接喷射燃烧室和富油燃烧急冷贫油燃烧室。
One of the important techniques for reducing NOx emissions is the use of high efficient combustion of LPP ( Lean Premixed Pre-evaporation). 降低NOx排放的重要手段之一是采用高效的贫燃料预混合预蒸发LPP(LeanPremixedPre-evaporation)燃烧方式。
Study found that the flow distribution has great influence on the effect of pre-mixed and pre-evaporation. 二级旋流器的流量分配对预蒸发预混合效果和燃烧状态有重要影响。