Device Design and Simulation Optimization of Exhaust Gas Cooling. (February 2019)

• Record Type: Journal Article
• Authors: Wu, Yiqiang; Liu, Minghou; Li, Xinlong; Lyu, Song; Sun, Feiyang; Qian, Peng; Xie, Fubo; Xu, Chi
• Is Part Of: Energy procedia. Volume 158(2019)
• Page Start: 5361
• Page End: 5366
• Publication Date: 2019-02
• Subjects: Ejector -- CFD -- Exhaust cooling -- Geometry; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2019.01.629
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: The temperature of exhaust gas can exceed 800K, which is much higher than surroundings. It's easy to demonstrate IR and get bombed. Therefore, it's necessary to lower the temperature of exhaust gas. In this paper, a kind of infrared suppressor which uses engine exhaust to eject cold air and water spray is designed. Water spray is produced by ultrasonic atomization. The mixing process of the ejector is revealed by CFD. CFD results are validated with the experimental values. After validation is satisfied, this paper analyzes the temperature field inside the ejector and compares the performances of ejectors with varying geometries. According to CFD results, a device is made. Test results show that a good performance is achieved: radiation energy is only 36% of the original.