Experimental and numerical simulation of the deposition characteristics of NH₄Cl particles in 90° elbow
by Xinyu Liu; Jianxun Quan; Xiaofei Liu; Haozhe Jin; Guofu Ou
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 32, No. 2, 2023

Abstract: The deposition of NH₄Cl particles in the equipment can cause potential safety hazards in petrochemical enterprises. In this study, a gas-solid-flow experimental equipment has been built to explore the characteristics of NH₄Cl deposition with different humidity and fluid velocity. The results show that: the gas flow rate, relative humidity (RH), and duration have little influence on the deposition position of NH₄Cl particles, but they affect the deposition amount of NH₄Cl particles greatly; due to the formation of liquid droplets and the influence of secondary flow in the elbow, the deposition increases rapidly in the range of 45°-75° and reaches 0.57 g at 67.5°. After evaluating the experiment, a computational fluid dynamics (CFDs) coupled with DEM method is employed to analyse the flow parameters of particles. Numerical results of particle deposition show a good agreement with the corresponding experimental data. [Received: February 25, 2022; Accepted: July 6, 2022]

Online publication date: Wed, 04-Jan-2023

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Oil, Gas and Coal Technology (IJOGCT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com