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Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste / ALEJANDRO LACONCHA

Swansea University Author: ALEJANDRO LACONCHA

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Abstract

This thesis investigates hydrogen production through electrolysis, explores heat recovery mechanisms and searches innovative methods to develop materials that enable technology to become more sustainable.The latest forms of energy transport and storage are studied, alongside methods to improve the e...

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Published: Swansea 2025
Institution: Swansea University
Degree level: Master of Research
Degree name: MSc by Research
Supervisor: Courtney, J.; Dunnill, C.; and White, A.
URI: https://cronfa.swan.ac.uk/Record/cronfa71077
first_indexed 2025-12-04T13:08:00Z
last_indexed 2025-12-05T18:13:26Z
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recordtype RisThesis
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spelling 2025-12-04T13:08:34.3153814 v2 71077 2025-12-04 Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste 7eec5f415e95d6cbbbcce85bbe0384fc ALEJANDRO LACONCHA ALEJANDRO LACONCHA true false 2025-12-04 This thesis investigates hydrogen production through electrolysis, explores heat recovery mechanisms and searches innovative methods to develop materials that enable technology to become more sustainable.The latest forms of energy transport and storage are studied, alongside methods to improve the efficiency of the energy sector, as well as the advantages of hydrogen to support the energy industry.To enable sustainable solutions, approaches are presented to enhance efficiencies while considering polluting impacts. The thesis delves in the study of hydrogen as an energy vector and storage method.It offers methods to produce hydrogen efficiently to promote green solutions with the aid of energy recovery systems. In addition, carbon nanotubes (CNTs) were researched, to take advantage of their unique physical properties and aid heat recovery technology.This research aims to find methods to generate economical CNTs to increase their availability for energy engineering projects. To do so, experiments are carried out to generate CNTs sustainably from waste plastic. This effort aims to create new methods to recycle waste.In essence, this thesis studies methods to tackle the increasingly demand for sustainable energy, while also proposing ways to reduce manmade pollution and incentivising a circular economy.Methods for heat recovery and conversion have been suggested, and new CNT material produced from recycled materials has been synthesised and characterised.Key findings demonstrate that electrolysis systems combined with heat recovery systems can improve an electrolyser’s efficiency from 75% to as much as 83%. In addition, the CNTs synthesised from waste plastics proved to be a method to reuse waste while also producing CNTs with desirable structural properties. This finding therefore demonstrates that CNTs can be suitable to improve heat exchange systems while being produced sustainably. E-Thesis Swansea Hydrogen, CNTs, heat recovery systems, electrolysers 29 6 2025 2025-06-29 COLLEGE NANME COLLEGE CODE Swansea University Courtney, J.; Dunnill, C.; and White, A. Master of Research MSc by Research 2025-12-04T13:08:34.3153814 2025-12-04T13:03:51.1741561 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering ALEJANDRO LACONCHA 1 71077__35758__2be657df43dd4375997746090b15c2b5.pdf 2025_Laconcha_A.final.71077.pdf 2025-12-04T13:07:16.1368184 Output 6625645 application/pdf E-Thesis – open access true Copyright: the author, Alejandro Benavides Laconcha, 2025 true eng
title Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste
spellingShingle Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste
ALEJANDRO LACONCHA
title_short Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste
title_full Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste
title_fullStr Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste
title_full_unstemmed Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste
title_sort Recycling heat into useful energy for green hydrogen production & Producing carbon nanotubes from clothing waste
author_id_str_mv 7eec5f415e95d6cbbbcce85bbe0384fc
author_id_fullname_str_mv 7eec5f415e95d6cbbbcce85bbe0384fc_***_ALEJANDRO LACONCHA
author ALEJANDRO LACONCHA
author2 ALEJANDRO LACONCHA
format E-Thesis
publishDate 2025
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description This thesis investigates hydrogen production through electrolysis, explores heat recovery mechanisms and searches innovative methods to develop materials that enable technology to become more sustainable.The latest forms of energy transport and storage are studied, alongside methods to improve the efficiency of the energy sector, as well as the advantages of hydrogen to support the energy industry.To enable sustainable solutions, approaches are presented to enhance efficiencies while considering polluting impacts. The thesis delves in the study of hydrogen as an energy vector and storage method.It offers methods to produce hydrogen efficiently to promote green solutions with the aid of energy recovery systems. In addition, carbon nanotubes (CNTs) were researched, to take advantage of their unique physical properties and aid heat recovery technology.This research aims to find methods to generate economical CNTs to increase their availability for energy engineering projects. To do so, experiments are carried out to generate CNTs sustainably from waste plastic. This effort aims to create new methods to recycle waste.In essence, this thesis studies methods to tackle the increasingly demand for sustainable energy, while also proposing ways to reduce manmade pollution and incentivising a circular economy.Methods for heat recovery and conversion have been suggested, and new CNT material produced from recycled materials has been synthesised and characterised.Key findings demonstrate that electrolysis systems combined with heat recovery systems can improve an electrolyser’s efficiency from 75% to as much as 83%. In addition, the CNTs synthesised from waste plastics proved to be a method to reuse waste while also producing CNTs with desirable structural properties. This finding therefore demonstrates that CNTs can be suitable to improve heat exchange systems while being produced sustainably.
published_date 2025-06-29T05:28:45Z
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score 11.090091

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