Effect of the Injection Structure on Gas Velocity Distribution in a 3D Vertical Oven-Reference-Cited by-同舟云学术

Effect of the Injection Structure on Gas Velocity Distribution in a 3D Vertical Oven

Published:2023-09-28 Issue:10 Volume:13 Page:1707
ISSN:2079-6412
Container-title:Coatings
language:en
Short-container-title:Coatings

Author:

Zhou Qiucheng¹,Yang Zhanyu¹,Zheng Changsong¹,Wei Liping¹²³,Li Dong¹³,Fan Xiaoyong⁴

Affiliation:

1. School of Chemical Engineering, Northwest University, Xi’an 710069, China

2. Xi’an Key Laboratory of Special Energy Materials, Northwest University, Xi’an 710069, China

3. The Research Center of Chemical Engineering Applying Technology for Resource of Shaanxi, Xi’an 710069, China

4. Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China

Abstract

Gas injection structures were designed for a vertical oven to improve the gas–solid flow countercurrent structure. This work measured the wall temperature distribution of the vertical oven to reflect gas velocity distribution, and simulated the basic gas–solid flow field. The effects of the number of gas orifice layers and the injection angle on the gas velocity distribution were examined. The results showed that number of gas injection layers had a significant effect on the gas velocity distribution in the lower zone. Compared with the distributions with one or three injection layers, two injection layers produce more uniform gas flow. A small particle size of 6–15 mm increased the bed resistance and solid fraction standard deviation. A nozzle angle of 45° was conducive to increase the gas velocity in the upper zone and forming a more uniform gas distribution.

Funder

National Natural Science Foundation of China

Xi’an Qin chuang yuan “Scientist + Engineer” Project

Shccig-Qinling Program

Shaanxi Province’s Key Research and Development Plan

Publisher

MDPI AG

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces

Link

https://www.mdpi.com/2079-6412/13/10/1707/pdf

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