{"id":55562,"date":"2022-12-01T15:47:08","date_gmt":"2022-12-01T13:47:08","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=55562"},"modified":"2022-12-01T15:48:03","modified_gmt":"2022-12-01T13:48:03","slug":"these-m-boutghatin-etude-de-membranes-photoniques-dans-le-mir-pour-le-confort-thermique-individuel","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/theses-2022\/these-m-boutghatin-etude-de-membranes-photoniques-dans-le-mir-pour-le-confort-thermique-individuel.html","title":{"rendered":"THESE : M. BOUTGHATIN Etude de membranes photoniques dans le MIR pour le confort thermique individuel"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_1718ffcxa1m2f\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-55562'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lb54qtak-fd812fb0fc1f086502a874def2f5280c\">\n#top .av-special-heading.av-lb54qtak-fd812fb0fc1f086502a874def2f5280c{\nmargin:0 0 10px 0;\npadding-bottom:4px;\n}\nbody .av-special-heading.av-lb54qtak-fd812fb0fc1f086502a874def2f5280c .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lb54qtak-fd812fb0fc1f086502a874def2f5280c .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lb54qtak-fd812fb0fc1f086502a874def2f5280c av-special-heading-h2  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >THESE : M. BOUTGHATIN Etude de membranes photoniques dans le MIR pour le confort thermique individuel <\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-jriy64i8-2f4600354c0449b610997916bbd9b6bc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" >\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-68e036126b913e5028f77311dc66b825\">\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825{\ncolor:#bfbfbf;\nborder-color:#bfbfbf;\n}\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825 .av-icon-char{\nfont-size:60px;\nline-height:60px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-68e036126b913e5028f77311dc66b825 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue8c9' data-av_iconfont='entypo-fontello' ><\/span><\/span>\n<p><strong>M. BOUTGHATIN<\/strong><\/p>\n<p>Soutenance : <strong>29 mars 2022<br \/>\n<\/strong>Th\u00e8se de doctorat en Electronique, photonique, Universit\u00e9 de Lille, ENGSYS Sciences de l\u2019ing\u00e9nierie et des syst\u00e8mes,<br \/>\nAssociated project: RENATECH<\/p>\n<\/div><\/section>\n<section  class='av_textblock_section av-jtefqx33-628129dba2299b2ecd65ebfc92eac29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div  class='hr av-kjh3zw-4dff888f744b728a1aca9b3a0971493a hr-default  avia-builder-el-6  avia-builder-el-no-sibling'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<h5>Summary:<\/h5>\n<p>Les v\u00eatements sont des acteurs essentiels de notre quotidien afin de satisfaire le confort thermique du corps humain. Cependant, les v\u00eatements conventionnels pr\u00e9sentent g\u00e9n\u00e9ralement des performances thermiques m\u00e9diocres et peu contr\u00f4l\u00e9es. En effet, une variation brutale de la temp\u00e9rature de la pi\u00e8ce affecte consid\u00e9rablement le confort thermique du corps. D\u2019o\u00f9 la n\u00e9cessit\u00e9 d\u2019utiliser de mani\u00e8re continue des syst\u00e8mes de chauffage, ventilation, et climatisation (CVC) dans des espaces clos, afin de maintenir un environnement thermique appropri\u00e9 de la pi\u00e8ce. Cependant cette solution montre clairement ses limites par une consommation \u00e9nerg\u00e9tique consid\u00e9rable qui affecte les secteurs de l\u2019\u00e9conomie, de l\u2019\u00e9nergie et de l\u2019environnement. Le d\u00e9veloppement de nouveaux textiles capables de g\u00e9rer, \u00e0 proximit\u00e9 de la peau, la temp\u00e9rature du corps humain, sur une large gamme de temp\u00e9ratures ambiantes, sans apport d\u2019\u00e9nergie suppl\u00e9mentaire, appara\u00eet alors comme une solution alternative d\u2019une urgente n\u00e9cessit\u00e9. Le corps humain, pour une temp\u00e9rature de peau de 34\u00b0C, \u00e9met des rayonnements \u00e9lectromagn\u00e9tiques (EM) dans le moyen infrarouge (MIR) responsables de plus de 50% des pertes thermiques d\u2019un individu. Une compr\u00e9hension et une ma\u00eetrise de ces rayonnements permettraient de contr\u00f4ler la temp\u00e9rature du microclimat, espace d\u2019air entre le corps et le textile. Dans ce contexte, concevoir des textiles passifs, qui modulent les rayonnements MIR, pr\u00e9sente un d\u00e9fi pour la communaut\u00e9 scientifique. Le but de la th\u00e8se est d\u2019\u00e9tudier th\u00e9oriquement et exp\u00e9rimentalement les r\u00e9ponses spectrales dans le MIR (5-15 \u00b5m) de diff\u00e9rentes membranes \u00e0 faibles indices de r\u00e9fraction afin de contr\u00f4ler la thermor\u00e9gulation individuelle. Nous avons d\u00e9montr\u00e9 que l\u2019insertion de particules dans des membranes permettait de moduler son absorption et donc, selon la loi de Kirchhoff, son \u00e9missivit\u00e9. Sur la base de ces r\u00e9sultats, nous avons propos\u00e9 un tissu asym\u00e9trique \u00e0 r\u00e9chauffement radiatif haute performance pour des environnements pr\u00e9sentant des temp\u00e9ratures allant de froide \u00e0 mod\u00e9r\u00e9e. Dans un deuxi\u00e8me temps, nous avons \u00e9largi l\u2019\u00e9tude aux propri\u00e9t\u00e9s de transmission, r\u00e9flexion, absorption et diffusion de membranes photoniques \u00e0 base de polym\u00e8re. Nous avons montr\u00e9 que celles-ci, sous certaines conditions g\u00e9om\u00e9triques, \u00e9taient capables de moduler le rayonnement EM dans le MIR, permettant ainsi d\u2019agir sur la thermor\u00e9gulation du microclimat. Le travail de th\u00e8se est bas\u00e9 sur des calculs analytiques et num\u00e9riques par la m\u00e9thode des \u00e9l\u00e9ments finis (FEM). L\u2019\u00e9tude num\u00e9rique a \u00e9t\u00e9 accompagn\u00e9e par des exp\u00e9riences de fabrication en salle blanche \u00e0 l\u2019IEMN et de caract\u00e9risation par spectroscopie infrarouge (FTIR).<\/p>\n<h5>Abstract:<\/h5>\n<p>Clothing is an essential part of our daily life to satisfy the thermal comfort of the human body. However, conventional clothing generally has poor thermal performance and little control. Indeed, a sudden variation of the room temperature affects considerably the thermal comfort of the body. Hence the need for continuous use of heating, ventilation, and air conditioning (HVAC) systems in enclosed spaces to maintain an appropriate thermal environment in the room. However, this solution clearly shows its limits by a considerable energy consumption that affects the economic, energy and environmental sectors. The development of new textiles capable of managing, close to the skin, the temperature of the human body, over a wide range of ambient temperatures, without additional energy input, appears as an alternative solution of urgent necessity. The human body, for a skin temperature of 34\u00b0C, emits electromagnetic (EM) radiation in the mid-infrared (MIR) range, which is responsible for more than 50% of an individual\u2019s heat loss. An understanding and control of this radiation would allow to control the temperature of the microclimate, the air space between the body and the textile. In this context, designing passive textiles, which modulate MIR radiation, is a challenge for the scientific community. The aim of this thesis is to study theoretically and experimentally the spectral responses in the MIR (5-15 \u00b5m) of different membranes with low refractive indices in order to control individual thermoregulation. We have demonstrated that the insertion of particles in membranes allows to modulate its absorption and thus, according to Kirchhoff\u2019s law, its emissivity. Based on these results, we proposed a high performance asymmetric radiative heating fabric for environments with cold to moderate temperatures. In a second step, we extended the study to the transmission, reflection, absorption and scattering properties of polymer-based photonic membranes. We have shown that these membranes, under certain geometrical conditions, were able to modulate the EM radiation in the MIR, thus allowing to act on the thermoregulation of the microclimate. The thesis work is based on analytical and numerical calculations using the finite element method (FEM). The numerical study was accompanied by experiments of manufacturing in clean room at IEMN and characterization by infrared spectroscopy (FTIR).<\/p>\n<\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[316],"tags":[],"class_list":["post-55562","post","type-post","status-publish","format-standard","hentry","category-theses-2022"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=55562"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55562\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=55562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=55562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=55562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}