Real time optimization of solar powered direct contact membrane distillation based on multivariable extremum seeking

Karam, Ayman M.; Laleg-Kirati, Taous-Meriem

Real time optimization of solar powered direct contact membrane distillation based on multivariable extremum seeking

Files

MSC2015_final_submision.pdf (1.39 MB)

Type

Conference Paper

Authors

Karam, Ayman M.

Laleg-Kirati, Taous-Meriem

KAUST Department

Computational Bioscience Research Center (CBRC)
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program

Online Publication Date

2015-11-05

Print Publication Date

2015-09

Date

2015-11-05

Abstract

This paper presents a real time optimization scheme for a solar powered direct contact membrane distillation (DCMD) water desalination system. The sun and weather conditions vary and are inconsistent throughout the day. Therefore, the solar powered DCMD feed inlet temperature is never constant, which influences the distilled water flux. The problem of DCMD process optimization has not been studied enough. In this work, the response of the process under various feed inlet temperatures is investigated, which demonstrates the need for an optimal controller. To address this issue, we propose a multivariable Newton-based extremum seeking controller which optimizes the inlet feed and permeate mass flow rates as the feed inlet temperature varies. Results are presented and discussed for a realistic temperature profile.

Citation

Karam, A. M., & Laleg-Kirati, T. M. (2015). Real time optimization of solar powered direct contact membrane distillation based on multivariable extremum seeking. 2015 IEEE Conference on Control Applications (CCA). doi:10.1109/cca.2015.7320841