Modeling and simulation of urea-water-solution droplet evaporation and thermolysis processes for SCR systems

Xubo Gan; Dongwei Yao; Feng Wu; Jiawei Dai; Lai Wei; Xingwen Li

doi:10.1016/j.cjche.2016.04.026

Your Location：

Home >

Browse articles >

Modeling and simulation of urea-water-solution droplet evaporation and thermolysis processes for SCR systems

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Modeling and simulation of urea-water-solution droplet evaporation and thermolysis processes for SCR systems
- Chinese Journal of Chemical Engineering Vol. 24, Issue 8, Pages: 1065-1073(2016)
- Affiliations：
  
  Institute of Power Machinery and Vehicular Engineering, Zhejiang University,Hangzhou,China,310027
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.04.026
  CLC：
- Published：2016
- Accepted：
Scan QR Code
Xubo Gan, Dongwei Yao, Feng Wu, Jiawei Dai, Lai Wei, Xingwen Li. Modeling and simulation of urea-water-solution droplet evaporation and thermolysis processes for SCR systems[J]. , 2016, 24(8): 1065-1073.
DOI：

Xubo Gan, Dongwei Yao, Feng Wu, Jiawei Dai, Lai Wei, Xingwen Li. Modeling and simulation of urea-water-solution droplet evaporation and thermolysis processes for SCR systems[J]. , 2016, 24(8): 1065-1073. DOI： 10.1016/j.cjche.2016.04.026.

摘要

Abstract

A reliable mathematical model of urea-water-solution (UWS) droplet evaporation and thermolysis is developed. The well known Abramzon-Sirignano evaporation model is corrected by introducing an adjustment coefficient considering the different evaporation behaviors of UWS droplet at different ambient temperatures. A semidetailed kinetic scheme of urea thermolysis is developed based on Ebrahimian's work. Sequentially

the evaporation characteristics

decomposition efficiency of a single UWS droplet and deposit formation are simulated. As a result

the relation of evaporation time

relative velocity

exhaust temperature and droplet initial diameter is presented. Synchronously

it indicates that temperature is the decisive factor for urea thermolysis. Different temperatures result in different deposit components

and deposit yield is significantly influenced by temperature and decomposition time. The current work can provide guidance for designing urea injection strategy of SCR systems.

关键词

Keywords

references

Views

706

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Optimizing energy efficiency in fluid catalytic cracking units with GA and NSGA-II: A comprehensive simulation and multi-factor analysis

Isobaric vapor—liquid equilibrium for the binary system of methyl propionate and methyl methacrylate at 90.0, 75.0, 60.0, 45.0 and 30.0kPa

Thermodynamics insights into the gas-phase synthesis of glycolide from methyl glycolate

Reaction network design and hybrid modeling of S Zorb

Effect of samarium doping on the activity and sulfur resistance of Ce/MnFeOx catalyst for low-temperature selective catalytic reduction of NOx by ammonia

Related Author

Han Rui

Guan Qingshan

Gu Leqi

Sun Xiaoyan

Tophet Wongladprom

Vissanu Meeyoo

Xia Li

Xiang Shuguang

Related Institution

College of Chemical Engineering, Qingdao University of Science and Technology

Anhui Metaenergy Technologies Co., Ltd

Center of Ionic Liquid and Green Energy, Beijing Key Laboratory of Solid State Battery and Energy Storage Process, State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences

Center for Advanced Materials and Environmental Research, Mahanakorn University of Technology

UTM-QUST Satellite Lab, Faculty of Chemical Engineering, Universiti Teknologi Malaysia

⁰