{"id":3017,"date":"2020-08-24T07:58:18","date_gmt":"2020-08-24T07:58:18","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=3017"},"modified":"2026-04-28T10:41:45","modified_gmt":"2026-04-28T10:41:45","slug":"how-thermoelectric-power-generation-work","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/how-thermoelectric-power-generation-work\/","title":{"rendered":"Comment fonctionne la production d'\u00e9nergie thermo\u00e9lectrique"},"content":{"rendered":"<h4 class=\"wp-block-heading\">1. Aujourd'hui, l'environnement se d\u00e9grade et l'\u00e9nergie devient de plus en plus tendue. Les chercheurs sont \u00e0 la recherche d'applications \u00e9nerg\u00e9tiques propres, vertes et non polluantes. Parmi celles-ci, l'\u00e9nergie solaire, l'\u00e9nergie \u00e9olienne et l'\u00e9nergie mar\u00e9motrice sont connues de tous. Certains romans de science-fiction imaginent \u00e9galement la vie future des gens et mentionnent plus ou moins l'\u00e9nergie, et une fois que la diff\u00e9rence de temp\u00e9rature n'est pas faible, la fr\u00e9quence de production d'\u00e9lectricit\u00e9 n'est pas faible. Par exemple, dans un conte de Zheng Yuanjie, un dispositif ressemblant \u00e0 une carapace de tortue est apparu, et les gens le portaient sur leur dos, utilisant la chaleur g\u00e9n\u00e9r\u00e9e par le corps humain pour produire de l'\u00e9lectricit\u00e9 pour un usage quotidien. Le seul inconv\u00e9nient de cet appareil est son aspect hideux, mais l'\u00e9lectricit\u00e9 produite est suffisante pour permettre \u00e0 tout le monde de porter cette \"carapace de tortue\". Bien que Zheng Yuanjie ait utilis\u00e9 la satire des ph\u00e9nom\u00e8nes sociaux, ce dispositif est en principe possible. Bien qu'il n'y ait pas suffisamment de produits dans la vie r\u00e9elle, certains chercheurs ont fabriqu\u00e9 des mod\u00e8les dans des conditions exp\u00e9rimentales. . La production d'\u00e9nergie thermo\u00e9lectrique a commenc\u00e9 d\u00e8s les ann\u00e9es 1940. Le rendement initial de conversion du mat\u00e9riau thermo\u00e9lectrique \u00e9tait faible, le co\u00fbt \u00e9lev\u00e9 et la dur\u00e9e de vie courte. Elle a \u00e9t\u00e9 limit\u00e9e aux domaines militaire et a\u00e9rospatial, et n'a \u00e9t\u00e9 d\u00e9velopp\u00e9e rapidement dans le domaine civil que r\u00e9cemment. Nouveau hotspot.<\/h4>\n\n<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> A practical chemical-sourcing decision starts with the intended use first, then verifies purity, compatibility, storage, and process behavior before scale-up.<\/p>\n<!-- lc-qa-end -->\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">                                 <\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">2. Le principe de la production d'\u00e9nergie par diff\u00e9rence de temp\u00e9rature est le suivant : la temp\u00e9rature de surface du corps humain \u00e9tant l\u00e9g\u00e8rement sup\u00e9rieure \u00e0 la temp\u00e9rature ambiante quotidienne, cette diff\u00e9rence de temp\u00e9rature peut \u00eatre directement convertie en \u00e9nergie \u00e9lectrique \u00e0 l'aide de mat\u00e9riaux sp\u00e9ciaux pour la diff\u00e9rence de temp\u00e9rature. L'utilisation de la diff\u00e9rence de temp\u00e9rature ne se limite pas \u00e0 cette m\u00e9thode, mais la dilatation et la contraction thermiques de la chambre \u00e0 air peuvent \u00e9galement \u00eatre utilis\u00e9es pour tendre le ressort gr\u00e2ce \u00e0 une conception m\u00e9canique, ou le fluide est chauff\u00e9 pour s'\u00e9vaporer afin d'entra\u00eener les pales du g\u00e9n\u00e9rateur, mais en th\u00e9orie, cela n'est pas directement converti en \u00e9nergie \u00e9lectrique. La production d'\u00e9nergie thermo\u00e9lectrique est une technologie de production d'\u00e9nergie d\u00e9velopp\u00e9e sur la base de l'effet Seebeck des mat\u00e9riaux thermo\u00e9lectriques. Elle utilise deux types diff\u00e9rents de mat\u00e9riaux thermo\u00e9lectriques semi-conducteurs, de type P et de type N (le type P est un mat\u00e9riau riche en trous et le type N un mat\u00e9riau riche en \u00e9lectrons). Une extr\u00e9mit\u00e9 est connect\u00e9e pour former une jonction PN, comme le montre la figure 1a, plac\u00e9e \u00e0 haute temp\u00e9rature, et l'autre extr\u00e9mit\u00e9 est plac\u00e9e \u00e0 basse temp\u00e9rature, et il doit y avoir une certaine diff\u00e9rence de temp\u00e9rature entre les deux extr\u00e9mit\u00e9s. Sous l'effet de l'excitation thermique, la concentration de trous (\u00e9lectrons) \u00e0 l'extr\u00e9mit\u00e9 haute temp\u00e9rature du mat\u00e9riau de type P(N) est plus \u00e9lev\u00e9e qu'\u00e0 l'extr\u00e9mit\u00e9 basse temp\u00e9rature, de sorte que, sous l'effet de ce gradient de concentration, les trous et les \u00e9lectrons commencent \u00e0 diffuser vers l'extr\u00e9mit\u00e9 basse temp\u00e9rature, formant ainsi une force \u00e9lectromotrice. Le m\u00eame dispositif, s'il est aliment\u00e9, peut r\u00e9aliser un refroidissement actif, qui est une m\u00e9thode d'application efficace du refroidissement \u00e9lectrique, et peut \u00eatre utilis\u00e9 dans des \u00e9quipements de refroidissement de petite taille et de micro-refroidissement.<\/h4>\n\n\n\n<h2 class=\"wp-block-heading\">                              <\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"673\" height=\"437\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-1-1.png\" alt=\"\" class=\"wp-image-3020\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-1-1.png 673w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-1-1-300x195.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-1-1-600x390.png 600w\" sizes=\"(max-width: 673px) 100vw, 673px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"> <\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">3. Lors de la fabrication d'un dispositif, en raison de la limitation des mat\u00e9riaux et de la diff\u00e9rence de temp\u00e9rature, une seule jonction PN peut former une petite force \u00e9lectromotrice et un courant relativement faible. Si plusieurs jonctions PN de ce type sont connect\u00e9es en s\u00e9rie, une tension suffisamment \u00e9lev\u00e9e peut \u00eatre obtenue pour devenir un g\u00e9n\u00e9rateur thermo\u00e9lectrique efficace. La m\u00e9thode d'int\u00e9gration illustr\u00e9e dans la figure ci-dessous est tr\u00e8s courante dans la fabrication de dispositifs.<\/h4>\n\n\n\n<h2 class=\"wp-block-heading\">                        <\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1030\" height=\"683\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-2-1030x683.png\" alt=\"\" class=\"wp-image-3019\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-2-1030x683.png 1030w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-2-300x199.png 300w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-2-768x509.png 768w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-2-600x398.png 600w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/08\/thermoelectric-power-generation-2.png 1189w\" sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">                       <\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">4. Outre l'utilisation de l'\u00e9nergie solaire pour la production d'\u00e9nergie thermo\u00e9lectrique, toutes les autres sources de diff\u00e9rence thermo\u00e9lectrique sont g\u00e9n\u00e9r\u00e9es par d'autres consommations d'\u00e9nergie. M\u00eame si elle est utilis\u00e9e \u00e0 la surface du corps humain, elle utilise \u00e9galement l'\u00e9nergie de la biomasse g\u00e9n\u00e9r\u00e9e par les \u00eatres humains. \u00c9tant donn\u00e9 que l'\u00e9nergie dissip\u00e9e sous forme d'\u00e9nergie thermique est consid\u00e9rable et que le stockage de l'\u00e9nergie solaire et de l'\u00e9nergie oc\u00e9anique est tr\u00e8s important, la production d'\u00e9nergie thermo\u00e9lectrique a de grandes perspectives de d\u00e9veloppement.<\/h4>\n\n\n\n<h2 class=\"wp-block-heading\">                       <\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">Cet article a \u00e9t\u00e9 r\u00e9dig\u00e9 par Longchang Chemical R&amp;D Department. Si vous souhaitez le copier et le r\u00e9imprimer, veuillez indiquer la source.<\/h4>\n\n\n<!-- lc-commercial-start -->\n<h2>A practical sourcing checklist for general industrial chemicals<\/h2>\n<p>General chemical decisions usually become clearer when teams move from theory to application fit: what the material needs to do, how pure it needs to be, how it behaves in the real process, and what downstream constraints it must satisfy.<\/p>\n<ul>\n<li><strong>Define the use case first:<\/strong> laboratory understanding and industrial purchasing often need different levels of specification detail.<\/li>\n<li><strong>Check process compatibility:<\/strong> handling, blending, stability, and downstream interaction often determine whether a material is practical to use.<\/li>\n<li><strong>Review storage and transport behavior:<\/strong> shelf life, moisture sensitivity, temperature range, and packaging can all matter commercially.<\/li>\n<li><strong>Use sample validation when the application is critical:<\/strong> small-scale confirmation often saves the most time before a full purchasing decision.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why can a material that looks correct on paper still underperform in use?<\/strong><br \/>Because real-world process conditions, substrate interaction, and storage behavior can reveal problems that are not obvious in a simplified specification review.<\/p>\n<p><strong>Should technical chemical selection always start with the lowest-cost option?<\/strong><br \/>Not usually. The lowest purchase price is not always the lowest use cost once process fit, stability, and downstream quality are considered.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>1. Today, the environment is deteriorating and energy is becoming more and more tense. Researchers have been looking for green and pollution-free clean energy applications. Among them, solar energy, wind<\/p>","protected":false},"author":1,"featured_media":3018,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3017","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How thermoelectric power generation work - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"1. 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