Efficient light energy harvesters for indoor applications

In the era of smart buildings, sensor integration has revolutionized security, welfare, and sustainability. Building intelligence and sustainability are obtained through self-powered sensors via energy collected from residual energy available in the same building. This energy is commonly obtained th...

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Detalles Bibliográficos
Autor: Villaverde Cervantes, Martí
Tipo de recurso: tesis de maestría
Fecha de publicación:2024
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/409999
Acceso en línea:https://hdl.handle.net/2117/409999
Access Level:acceso embargado
Palabra clave:Energy harvesting.
Internet of Things
IoT
Indoor Photovoltaic
Energy Harversting
Energy.
Cèl·lules fotovoltaiques
Àrees temàtiques de la UPC::Energies
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spelling Efficient light energy harvesters for indoor applicationsVillaverde Cervantes, MartíEnergy harvesting.Internet of ThingsIoTIndoor PhotovoltaicEnergy HarverstingEnergy.Cèl·lules fotovoltaiquesÀrees temàtiques de la UPC::EnergiesIn the era of smart buildings, sensor integration has revolutionized security, welfare, and sustainability. Building intelligence and sustainability are obtained through self-powered sensors via energy collected from residual energy available in the same building. This energy is commonly obtained through light, thermal, or electromagnetic harvesting. The goal of ambient energy harvesting is to capture ambient energy to power Internet of Things (IoT) devices that operate on their own. This document is focused on optical energy harvesting through Indoor Photovoltaic (IPV) cells. These cells provide an eco-friendly way to capture energy within buildings. Although the IPV power densities are around 100 to 1000 times lower than in outdoor applications, the scale of IPV cells makes them a desirable option for low-power Internet of Things devices. There are three chapters in this thesis. The first chapter provides a characterization of commercial IPV cells under controlled laboratory conditions, subjected to different types of artificial light. The study concludes that while the a-Si cell, with around 7% efficiency and stable VMPP values, is suitable for a constant voltage method, the perovskite cell, performing better on a Fractional Open Circuit Voltage (FOCV), despite having better efficiency ranges, exhibits instability and unclear temperature behavior, making it less viable currently. The second chapter is a study of the amount of light (artificial, natural, and a combination of artificial and natural) in different rooms oriented to different positions. The study highlights the critical importance of device placement near windows to optimize energy collection from natural light, which can be up to 4.95 times more effective than artificial light alone over a working day. Finally, an experimental characterization in uncontrolled conditions of 4 different cells located in 2 different rooms during a period of weeks is carried out. The study concludes that monocrystalline cells exhibit superior performance in capturing solar energy, emphasizing the importance of unobstructed placement and vertical orientation for optimal power generation indoors.Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No ContaminantUniversitat Politècnica de CatalunyaReverter Cubarsí, Ferran20242024-06-1020242024-06-1420292029-06-04master thesishttp://purl.org/coar/resource_type/c_bdccNAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2117/409999reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengembargoed accesshttp://purl.org/coar/access_right/c_f1cfhttp://creativecommons.org/licenses/by-nc/3.0/es/info:eu-repo/semantics/embargoedAccessoai:upcommons.upc.edu:2117/4099992026-05-27T15:37:01Z
dc.title.none.fl_str_mv Efficient light energy harvesters for indoor applications
title Efficient light energy harvesters for indoor applications
spellingShingle Efficient light energy harvesters for indoor applications
Villaverde Cervantes, Martí
Energy harvesting.
Internet of Things
IoT
Indoor Photovoltaic
Energy Harversting
Energy.
Cèl·lules fotovoltaiques
Àrees temàtiques de la UPC::Energies
title_short Efficient light energy harvesters for indoor applications
title_full Efficient light energy harvesters for indoor applications
title_fullStr Efficient light energy harvesters for indoor applications
title_full_unstemmed Efficient light energy harvesters for indoor applications
title_sort Efficient light energy harvesters for indoor applications
dc.creator.none.fl_str_mv Villaverde Cervantes, Martí
author Villaverde Cervantes, Martí
author_facet Villaverde Cervantes, Martí
author_role author
dc.contributor.none.fl_str_mv Reverter Cubarsí, Ferran
dc.subject.none.fl_str_mv Energy harvesting.
Internet of Things
IoT
Indoor Photovoltaic
Energy Harversting
Energy.
Cèl·lules fotovoltaiques
Àrees temàtiques de la UPC::Energies
topic Energy harvesting.
Internet of Things
IoT
Indoor Photovoltaic
Energy Harversting
Energy.
Cèl·lules fotovoltaiques
Àrees temàtiques de la UPC::Energies
description In the era of smart buildings, sensor integration has revolutionized security, welfare, and sustainability. Building intelligence and sustainability are obtained through self-powered sensors via energy collected from residual energy available in the same building. This energy is commonly obtained through light, thermal, or electromagnetic harvesting. The goal of ambient energy harvesting is to capture ambient energy to power Internet of Things (IoT) devices that operate on their own. This document is focused on optical energy harvesting through Indoor Photovoltaic (IPV) cells. These cells provide an eco-friendly way to capture energy within buildings. Although the IPV power densities are around 100 to 1000 times lower than in outdoor applications, the scale of IPV cells makes them a desirable option for low-power Internet of Things devices. There are three chapters in this thesis. The first chapter provides a characterization of commercial IPV cells under controlled laboratory conditions, subjected to different types of artificial light. The study concludes that while the a-Si cell, with around 7% efficiency and stable VMPP values, is suitable for a constant voltage method, the perovskite cell, performing better on a Fractional Open Circuit Voltage (FOCV), despite having better efficiency ranges, exhibits instability and unclear temperature behavior, making it less viable currently. The second chapter is a study of the amount of light (artificial, natural, and a combination of artificial and natural) in different rooms oriented to different positions. The study highlights the critical importance of device placement near windows to optimize energy collection from natural light, which can be up to 4.95 times more effective than artificial light alone over a working day. Finally, an experimental characterization in uncontrolled conditions of 4 different cells located in 2 different rooms during a period of weeks is carried out. The study concludes that monocrystalline cells exhibit superior performance in capturing solar energy, emphasizing the importance of unobstructed placement and vertical orientation for optimal power generation indoors.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-06-10
2024
2024-06-14
2029
2029-06-04
dc.type.none.fl_str_mv master thesis
http://purl.org/coar/resource_type/c_bdcc
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/409999
url https://hdl.handle.net/2117/409999
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv embargoed access
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dc.rights.openaire.fl_str_mv info:eu-repo/semantics/embargoedAccess
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http://creativecommons.org/licenses/by-nc/3.0/es/
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
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