Metamaterials for radiactive cooling

Lezaun Capdevila, Carlos

Publication:
Metamaterials for radiactive cooling

dc.contributor.advisorTFE	Beruete Díaz, Miguel
dc.contributor.affiliation	Escuela Técnica Superior de Ingeniería Industrial, Informática y de Telecomunicación	es_ES
dc.contributor.affiliation	Industria, Informatika eta Telekomunikazio Ingeniaritzako Goi Mailako Eskola Teknikoa	eu
dc.contributor.author	Lezaun Capdevila, Carlos
dc.date.accessioned	2021-07-26T11:48:42Z
dc.date.available	2021-07-26T11:48:42Z
dc.date.issued	2021
dc.date.updated	2021-07-26T07:57:07Z
dc.description.abstract	The increasing pressure of society to decrease energy consumption and to enhance energetic efficiency has lead to search novel technologies to accomplish it. Notwithstanding the increasing electricity production of renewable energies, it is a fact that the energy expenses can be drastically reduced in most areas. Among these areas, cooling systems stand out for being energetically inefficient. Furthermore, both economical and energy cost of such systems are increasing due to the global warming, which is aggravated by the energy production for them, making a loop that is increasingly damaging the environment. A solution to this problem has emerged under the name of radiative cooling, which is a physical phenomenon by which any terrestrial object losses heat in form of radiation that is sent to outer space. This process can be explained by black body radiation theory and the atmospheric window. The former states that any object at some temperature above 0 K radiates energy at all wavelengths, with its radiation peak and spectral location modulated by its temperature. The latter is a frequency band in which the atmosphere is transparent to radiation, making possible for waves at certain frequencies to cross freely. These phenomena allows a direct heat transmission between earth and space, which is cold and almost infinite, making a great storage for excess warmth without wasting energy in the process. In this work, it has been studied one of the main technologies that can implement radiative cooling in practice, metamaterials, with the aim to understand how to improve its associated problems of manufacturing and design for radiative cooling applications. In Chapter 1, the fundamentals of radiative cooling are introduced along with the state of the art. Then, Chapter 2 presents the materials used in the literature and in this work to develop later analytical models for thin film multilayered metamaterials and a possible way to automatically design them. To better understand the analytical developments, two appendices introducing the underlying theory and equations are included. Also, the software used in this work is presented. Finally, the performance and analysis of three different radiative cooling devices is exposed in Chapter 3, one of them using the materials and methods of Chapter 2.	en
dc.description.degree	Máster Universitario en Ingeniería de Telecomunicación por la Universidad Pública de Navarra	es_ES
dc.description.degree	Nafarroako Unibertsitate Publikoko Unibertsitate Masterra Telekomunikazio Ingeniaritzan	eu
dc.format.mimetype	application/pdf	en
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/40271
dc.language.iso	eng	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.title	Metamaterials for radiactive cooling	en
dc.type	info:eu-repo/semantics/masterThesis
dspace.entity.type	Publication