Standardized dried extracts of Bidens pilosa l.: technological development and eva...
| Full text | |
| Author(s): |
Amigo, R. C. R.
[1, 2]
;
Prado, D. S.
[1]
;
Paiva, J. L.
[1]
;
Hewson, R. W.
[2]
;
Silva, E. C. N.
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Escola Politecn, Sao Paulo - Brazil
[2] Imperial Coll London, London - England
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION; v. 58, n. 6, p. 2431-2454, DEC 2018. |
| Web of Science Citations: | 0 |
| Abstract | |
Adsorption is a retention mechanism of fluid molecules on solid surfaces and presents a wide range of applications, such as fuel storage, refrigeration and separation processes. This work describes the modelling of gas adsorption on porous media and presents an optimisation approach for the design of adsorption systems based on biphasic adsorbent beds by topology optimisation. A comprehensive formulation for the adsorption phenomenon is presented, detailing the derivation of governing equations and respective weak forms and discretisation for the implementation of the finite element method (FEM). A new topology optimisation material model based on offset hyperbolic tangents is introduced. The derivation of sensitivities is presented in detail, based on a transient adjoint problem. A diverse set of optimised adsorbed natural gas (ANG) tanks, considering real material properties of activated carbon and steel, is presented. Results indicate the suitability of the method in optimising the distribution of phases across adsorbent beds and show that biphasic ANG tanks can perform significantly better than traditional tanks. (AU) | |
| FAPESP's process: | 14/50279-4 - Brasil Research Centre for Gas Innovation |
| Grantee: | Julio Romano Meneghini |
| Support type: | Research Grants - Research Centers in Engineering Program |