A novel catalyst of warm-cloud seeding to enhance precipitation

2016 Global Conference on Polymer and Composite Materials

材料科学;化学

Zhu, H.X.^1 ; Li, X.D.^1 ; Yang, R.J.^1

School of Materials Science and Engineering, Beijing Institute of Technology, Beijing

100081, China^1

关键词: Catalytic effects;    Novel catalysts;    Optimal performance;    Precipitation efficiency;    Salt powders;    Sodium polyacrylates;    Water demand;    Water source;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/137/1/012002/pdf
DOI  :  10.1088/1757-899X/137/1/012002

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Water is necessary for sustaining human life. In many regions of the world, traditional water sources cannot meet increasing water demands. Warm-cloud seeding is an efficient way to augment water supplies. In this paper, we explore two new hygroscopicity catalysts: Poly acrylamide (PAM) and Sodium polyacrylate (PAAS). We designed a series of experiments to investigate the effects of these catalysts together with common catalyst salt powder (NaCl). The experiment was held in a cloud chamber built in our laboratory. The results show that: 1) Catalysed by NaCl, a dose of 0.91g/m3can obtain the best precipitation efficiency and enhancement rate at 70.8% and 142%, respectively; 2) A 1.36g/m3dose catalysed by PAM and PAAS exhibits optimal performance at 76.7% and 70.4% precipitation efficiency, respectively; 3) Under the same conditions, PAM shows better catalytic effects than NaCl does.