Integrated oxy-combustion power generation with carbon capture and humidification–dehumidification desalination cycle

Binash Imteyaz*, Furqan Tahir, Dahiru Umar Lawal, Kashif Irshad, Mohamed Ahmed

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The amount of resources devoted to saltwater desalination is substantial and will only rise as the scarcity of water escalates globally. Desalination techniques for seawater, particularly thermal desalination techniques, require a lot of energy and utilize conventional energy sources. The goal of this article is to examine the integration of thermal desalination techniques with carbon capture and sequestration (CCS) power generation. This study utilizes an oxy-combustion-based zero-emission power plant and investigates the performance of a humidification–dehumidification (HDH) cycle integrated with the main cycle. The system constitutes two main cycles, namely (i) oxy-combustion power generation cycle (OPGC) and (ii) humidification–dehumidification (HDH) cycle. The performance of several bottoming cycles coupled with a closed-air-open-water water-heated (CAOW-WH) HDH system is studied to evaluate the thermodynamic feasibility of the system. The effect of top and bottom temperatures of the HDH system and mass flow rates are optimized for gain output ratio (GOR) and recovery rate (RR). A sensitivity analysis of the integrated system was also conducted, and the effect of oxy-combustion operating parameters on the net cycle efficiency was examined. This analysis offers crucial design considerations for such integrated systems to generate power with zero emissions and produces sweet water without additional energy costs.

Original languageEnglish
Pages (from-to)126-132
Number of pages7
JournalDesalination and Water Treatment
Volume309
DOIs
StatePublished - Oct 2023

Bibliographical note

Publisher Copyright:
© 2023 Desalination Publications. All rights reserved.

Keywords

  • Carbon capture
  • Desalination
  • Gain output ratio
  • Humidification–dehumidification
  • Oxy-combustion

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

Fingerprint

Dive into the research topics of 'Integrated oxy-combustion power generation with carbon capture and humidification–dehumidification desalination cycle'. Together they form a unique fingerprint.

Cite this