Road sweeper is the widely-employed machine to clear up garbage and dust on streets. Its performance has profound influence on the reduction of fuel consumption and hence CO2 emission. The key component of a road sweeper is a centrifugal fan which produces suction force for clearing. Therefore, the performance of this device has direct impact on fuel economy of the machine. This paper targets at the performance analysis of a centrifugal fan in a commercial road sweeper. Firstly, the performance and flow field of the centrifugal fan are analyzed by computational fluid dynamics (CFD) method. The breakdown of the flow loss in the fan shows that the volute and the impeller are major components contributing to flow loss in the fan. The flow at the inlet of the impeller is highly distorted due the interaction among the asymmetrical inlet duct, the leakage and the volute tongue. Because of the interaction, flow passages near the tongue are the ones with the highest flow loss. Moreover, the flow velocity entering the volute is considerably high which thus results in high flow loss in the volute. Finally, based on the flow field analysis, an inlet duct with round shape is designed preliminarily and simulated together with the centrifugal fan. The results show that the efficiency can be improved by more than 4% compared with the original configuration due to the alleviation of the interaction.
Skip Nav Destination
ASME 2017 Fluids Engineering Division Summer Meeting
July 30–August 3, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5804-2
PROCEEDINGS PAPER
Numerical Analysis of a Centrifugal Fan for a Road Sweeper
Xiaoxuan Chen,
Xiaoxuan Chen
Shanghai Jiaotong University, Shanghai, China
Search for other works by this author on:
Mingyang Yang,
Mingyang Yang
Shanghai Jiaotong University, Shanghai, China
Search for other works by this author on:
Kangyao Deng,
Kangyao Deng
Shanghai Jiaotong University, Shanghai, China
Search for other works by this author on:
Yunlong Bai
Yunlong Bai
Fujian Longma Environmental Sanitation Equipment Co. Ltd., Longyan, China
Search for other works by this author on:
Xiaoxuan Chen
Shanghai Jiaotong University, Shanghai, China
Mingyang Yang
Shanghai Jiaotong University, Shanghai, China
Kangyao Deng
Shanghai Jiaotong University, Shanghai, China
Yunlong Bai
Fujian Longma Environmental Sanitation Equipment Co. Ltd., Longyan, China
Paper No:
FEDSM2017-69103, V01AT02A001; 10 pages
Published Online:
October 24, 2017
Citation
Chen, X, Yang, M, Deng, K, & Bai, Y. "Numerical Analysis of a Centrifugal Fan for a Road Sweeper." Proceedings of the ASME 2017 Fluids Engineering Division Summer Meeting. Volume 1A, Symposia: Keynotes; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Fluid Machinery; Industrial and Environmental Applications of Fluid Mechanics; Pumping Machinery. Waikoloa, Hawaii, USA. July 30–August 3, 2017. V01AT02A001. ASME. https://doi.org/10.1115/FEDSM2017-69103
Download citation file:
47
Views
Related Proceedings Papers
Related Articles
A Port in the Storm
Mechanical Engineering (November,1999)
Design Concept and Development of a Heavy-Duty Truck Diesel Engine for Better Fuel Economy
J. Eng. Power (July,1983)
A Study of Fuel Efficiency and Emission Policy Impact on Optimal Vehicle Design Decisions
J. Mech. Des (November,2004)
Related Chapters
Environment
Engineering the Everyday and the Extraordinary: Milestones in Innovation
Current Situations and Solutions of Urban Architectural Trash in China
International Conference on Measurement and Control Engineering 2nd (ICMCE 2011)
Introduction
Design and Analysis of Centrifugal Compressors