Numerical study on thermodynamic characteristics of rotational supercavitating evaporator

7th International Conference on Pumps and Fans

机械制造;工业技术

Li, Q.^1 ; Zheng, Z.Y.^1 ; Li, F.C.^1 ; Kulagin, V.A.^2

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin

150001, China^1

Department of Heat Technology and Fluid Dynamics, Siberian Federal University, Krasnoyarsk

660041, Russia^2

关键词: Convective heat transfer Coefficient;    Extraction pressure;    New technologies;    Rotational speed;    Seawater desalination;    Supercavitating;    Supercavitating flows;    Thermodynamic characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/129/1/012044/pdf
DOI  :  10.1088/1757-899X/129/1/012044

学科分类：工业工程学

来源: IOP

【 摘 要 】

Rotational Supercavitating Evaporator (RSCE) has been proposed as a new technology for seawater desalination. However, thermodynamic characteristics of rotational supercavitation are still vacant. In this paper, numerical simulations are conducted on the supercavitating flows around a 3D rotating blade of RSCE with different rotational speeds and extraction pressures. Energy effect is taken into consideration in the simulation and thermodynamic characteristics of rotational supercavitation are obtained. Rotational supercavitation has a larger convective heat transfer coefficient than the boiling on a heated wall.