A green approach to future water harvesting strategy through solar steam generator system

Onggowarsito, Casey

A green approach to future water harvesting strategy through solar steam generator system

Onggowarsito, Casey

Permalink

Publication Type:: Thesis
Issue Date:: 2024

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download thesisAdobe PDF (9.56 MB)

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Onggowarsito, Casey
dc.date.accessioned	2025-05-23T04:46:47Z
dc.date.available	2025-05-23T04:46:47Z
dc.date.issued	2024
dc.identifier.uri	http://hdl.handle.net/10453/187482
dc.description	University of Technology Sydney. Faculty of Engineering and Information Technology.	en_US.UTF-8
dc.description.abstract	Over the years, there have been an overly increasing water demand crisis caused by the growing population and economic. Due to current unsustainable conventional desalination systems, the pursue to search and develop for a greener/sustainable alternative water production system has become a crucial aspect in the global water crisis. A newly proposed water production system known as solar steam generation (SSG) has brought many attentions to being a more sustainable water production system due to the utilisation of photothermal materials (PTM) to convert renewable sunlight into thermal energy, efficiently distilling contaminated water for clean water source. However, existing challenges to produce a high-water evaporation performance, efficient, and versatile filtration system, still hinder the progression of this technology to be developed as an alternate water production system. This research aims to develop, investigate, and improve interfacial SSG materials by addressing the mentioned challenges. The initial development of a novel highly hydrophilic PVA/MnO2 hydrogel-based SSG addresses the water evaporation performance challenge while featuring a self-cleaning desalination application, effectively filtrating majority salt ions while meeting the World Health Organisation’s guidelines. The subsequent study refined the heat and water management aspects of SSG technology by introducing a novel dual-layer hydrogel (DLH). This novel SSG features tuneable water transport for sufficient water replenishment, excellent heat isolation, and low latent enthalpy, contributing to its high-water evaporation performance and providing further understanding into evaporation dynamic. In addition, DLH bottom layer cationic group allows DLH to passively filtrate salt and eliminate pathogenic bacterial activities with the absence of sunlight. Lastly, the development of dual-layer hydrogel phase change material (DLHPCM) highlights the importance of understanding evaporation dynamic, particularly regarding the inevitable heat loss, and reaffirms the significance of optimising SSG materials for more efficient and sustainable applications.	en_US.UTF-8
dc.format	Thesis (PhD)
dc.language.iso	en_US	en_US.UTF-8
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/187482/1/thesis.pdf
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.rights	© 2024 Casey Onggowarsito
dc.rights	au.edu.uts.lib/cph
dc.title	A green approach to future water harvesting strategy through solar steam generator system	en_US.UTF-8
dc.type	Thesis
utslib.copyright.status	open_access	*

Abstract:

Over the years, there have been an overly increasing water demand crisis caused by the growing population and economic. Due to current unsustainable conventional desalination systems, the pursue to search and develop for a greener/sustainable alternative water production system has become a crucial aspect in the global water crisis. A newly proposed water production system known as solar steam generation (SSG) has brought many attentions to being a more sustainable water production system due to the utilisation of photothermal materials (PTM) to convert renewable sunlight into thermal energy, efficiently distilling contaminated water for clean water source. However, existing challenges to produce a high-water evaporation performance, efficient, and versatile filtration system, still hinder the progression of this technology to be developed as an alternate water production system. This research aims to develop, investigate, and improve interfacial SSG materials by addressing the mentioned challenges. The initial development of a novel highly hydrophilic PVA/MnO2 hydrogel-based SSG addresses the water evaporation performance challenge while featuring a self-cleaning desalination application, effectively filtrating majority salt ions while meeting the World Health Organisation’s guidelines. The subsequent study refined the heat and water management aspects of SSG technology by introducing a novel dual-layer hydrogel (DLH). This novel SSG features tuneable water transport for sufficient water replenishment, excellent heat isolation, and low latent enthalpy, contributing to its high-water evaporation performance and providing further understanding into evaporation dynamic. In addition, DLH bottom layer cationic group allows DLH to passively filtrate salt and eliminate pathogenic bacterial activities with the absence of sunlight. Lastly, the development of dual-layer hydrogel phase change material (DLHPCM) highlights the importance of understanding evaporation dynamic, particularly regarding the inevitable heat loss, and reaffirms the significance of optimising SSG materials for more efficient and sustainable applications.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/187482