Next Article in Journal
Transesterification Kinetics of Waste Vegetable Oil in Supercritical Alcohols
Previous Article in Journal
Priority-Based Hierarchical Operational Management for Multiagent-Based Microgrids
Energies 2014, 7(4), 2079-2094; doi:10.3390/en7042079
Article

An Experimental Investigation on the Influence of Temperature on the Normal Impact of Fine Particles with a Plane Surface

,
,
 and
*
School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China
* Author to whom correspondence should be addressed.
Received: 20 December 2013 / Revised: 23 March 2014 / Accepted: 25 March 2014 / Published: 31 March 2014
View Full-Text   |   Download PDF [1323 KB, uploaded 17 March 2015]   |   Browse Figures

Abstract

This study investigated the rebound behavior of SiO2 particles normally impacting a planar surface under different temperature conditions. The system has been characterized for an aerosol inlet temperature range of 20–190 °C, flow velocities of 0–20 ms−1, and an impaction surface temperature range of 20–140 °C. For the first time, while keeping the same temperature gradient from the high- to low-temperature regions, the influences of varying temperature on the rebound behavior of SiO2 particles normally impacting a plane surface were examined. At increased temperatures, the plastic deformation increases and the coefficient of restitution reduces. The critical velocity is between 0.542 and 0.546 m/s under condition 1 (the carrier gas temperature (Tg) and the impaction surface temperature (TW) remain at room temperature of 20 °C), which increases to between 0.829 and 0.847 m/s under condition 4 (Tg and TW remain at temperatures of 190 °C and 140 °C, respectively). The experimental results show that the critical velocity increases with increasing temperature.
Keywords: temperature; rebound characteristics; impaction experiments; normal restitution coefficient temperature; rebound characteristics; impaction experiments; normal restitution coefficient
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
SciFeed

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
RIS
MDPI and ACS Style

Dong, M.; Xie, J.; Bai, L.; Li, S. An Experimental Investigation on the Influence of Temperature on the Normal Impact of Fine Particles with a Plane Surface. Energies 2014, 7, 2079-2094.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert