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- Title
微型空气取水装置拉瓦尔管导流结构的CFD 研究.
- Authors
蔡 申; 李松晶; 吴海成; 袁 帅; 周礼根; 张 亮
- Abstract
Aiming at the problem of harvesting water efficiently from air, a micro atmospheric water generator based on hygroscopic material was studied. A Laval nozzle for micro atmospheric water generator was designed to improve efficiency. The relation between Laval nozzle structure and air flow in the generator was investigated by employing a CFD (Computational Fluid Dynamics) numerical simulation. The mass flow based on different diameter and height of nozzle “throat” was analyzed. The results indicate that utilization of Laval nozzle can keep pipe heat insulation, reducing the internal air density, and form the negative pressure area because of the air acceleration effect. Appropriate Laval nozzle can increase mass flow rate in the generator by 50%. The adjustment of Laval nozzle structure can keep the mass flow in the best range and increase work efficiency.
- Publication
Journal of Mechanical & Electrical Engineering, 2018, Vol 35, Issue 3, p241
- ISSN
1001-4551
- Publication type
Academic Journal
- DOI
10.3969/j.issn.1001-4551.2018.03.005