Coupling detailed radiation model with process simulation in Aspen Plus: A case study on fluidized bed combustor

Date published

2017-08-31

Free to read from

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Department

Type

Article

ISSN

0306-2619

Format

Citation

Hu Y, Wang J, Tan CK, et al., (2018) Coupling detailed radiation model with process simulation in Aspen Plus: A case study on fluidized bed combustor. Applied Energy, Volume 227, October 2018, pp. 168-179

Abstract

While providing a fast and accurate tool for simulating fluidized beds, the major limitations of classical zero-dimensional ideal reactor models used in process simulations become irreconcilable, such as models built into commercial software (e.g. Aspen PlusĀ®). For example, the limitations of incorporating heat absorption by the water wall and super-heaters and inferring thermal reciprocity between each reactor model/module. This paper proposes a novel modelling approach to address these limitations by incorporating an external model that marries the advantages of the zone method and Aspen Plus to the greatest extent. A steady state operation of a 0.3 MW atmospheric bubbling fluidized-bed combustor test rig was simulated using the developed modelling approach and the results were compared with experimental data. The comparison showed that the predictions were in agreement with the measurements. Further improvement is to be expected through incorporating more realistic zoned geometry and more complex reaction mechanisms. In addition, the developed model has a relatively modest computing demand and hence demonstrates its potential to be incorporated into process simulations of a whole power plant.

Description

Software Description

Software Language

Github

Keywords

Zone method, Aspen Plus, Fluidized beds, Process simulation, Radiation analysis

DOI

Rights

Relationships

Relationships

Supplements

Funder/s