{"id":118242,"date":"2023-08-24T09:02:41","date_gmt":"2023-08-24T07:02:41","guid":{"rendered":"https:\/\/www.velasolaris.com\/handbuch\/sondes-geothermiques\/"},"modified":"2026-03-30T16:41:26","modified_gmt":"2026-03-30T14:41:26","slug":"sondes-geothermiques","status":"publish","type":"handbuch","link":"https:\/\/www.velasolaris.com\/fr\/handbuch\/polysun-designer\/pompes-a-chaleur-et-geothermie\/sondes-geothermiques\/","title":{"rendered":"Sondes g\u00e9othermiques"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">La sonde g\u00e9othermique a une profondeur de 50 \u00e0 plusieurs centaines de m\u00e8tres, en fonction des conditions locales et des exigences de performance. Dans la pratique, trois types typiques de sondes ( U simple, U double et coaxial) sont install\u00e9s dans le forage. Le mod\u00e8le math\u00e9matique de la sonde g\u00e9othermique de Polysun a \u00e9t\u00e9 adopt\u00e9 dans le programme EWS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce \u00e0 la compatibilit\u00e9 avec le programme EWS, il est possible de lire les fichiers de projet EWS directement dans Polysun \u00e0 partir du niveau utilisateur du Designer. Gr\u00e2ce \u00e0 un mod\u00e8le puissant fonctionnant en arri\u00e8re-plan, il est \u00e9galement possible de cr\u00e9er des champs de sonde g\u00e9othermique. Ceux-ci sont caract\u00e9ris\u00e9s par la sp\u00e9cification de la fonction g selon ESKILSON :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(g(r,t) = \\frac{\\mathrm{\\Delta}T_{Erde}(r,t)2\\pi\\lambda_{Erde}}{\\dot{q}}\\)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(\\Delta T_{Erde}\\) = R\u00e9duction de la temp\u00e9rature<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(\\lambda_{Erde}\\) = Conductibilit\u00e9 thermique<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\\(\\dot{q}\\) = Puissance de retrait sp\u00e9cifique<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette r\u00e9ponse sans dimension refl\u00e8te le comportement de la temp\u00e9rature dans l&rsquo;environnement de la sonde par rapport au sol non affect\u00e9. Veuillez noter que la fonction g n&rsquo;est valable que pour un certain rapport entre la profondeur H et l&rsquo;espacement B de la sonde. Diverses dispositions de sonde sont d\u00e9j\u00e0 enregistr\u00e9es dans un catalogue. Le rapport B\/H ne doit pas n\u00e9cessairement correspondre \u00e0 l&rsquo;arrangement r\u00e9el, car un rapport B\/H effectif est extrapol\u00e9 en cas d&rsquo;\u00e9carts. Afin de minimiser les impr\u00e9cisions d&rsquo;extrapolation, il convient toutefois de toujours utiliser la prochaine possible. Le mod\u00e8le permet de prendre en compte jusqu&rsquo;\u00e0 10 strates de terre diff\u00e9rentes, chacune d&rsquo;entre elles \u00e9tant incluse dans le calcul de la sonde enti\u00e8re. Pour chaque strate, plusieurs n\u0153uds de temp\u00e9rature sont calcul\u00e9s en fonction d&rsquo;un mod\u00e8le physique d\u00e9taill\u00e9. Le mod\u00e8le permet \u00e9galement de r\u00e9introduire de l&rsquo;\u00e9nergie, par exemple pour la r\u00e9g\u00e9n\u00e9ration ou le free cooling.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour simuler le vieillissement de la sonde, il est possible de sp\u00e9cifier l'\u00a0\u00bb\u00e9nergie pr\u00e9lev\u00e9e annuellement\u00a0\u00bb et la \u00ab\u00a0dur\u00e9e de pr\u00e9chargement de la sonde\u00a0\u00bb. La sonde est pr\u00e9charg\u00e9e avec une charge constante pendant cette p\u00e9riode. Si l&rsquo;on souhaite calculer plus pr\u00e9cis\u00e9ment le comportement \u00e0 long terme de la sonde, il est possible de r\u00e9gler la dur\u00e9e de la simulation pr\u00e9liminaire (dans le menu sous Variante &#8211; Dur\u00e9e de la simulation pr\u00e9liminaire).&nbsp; Avec cette simulation pr\u00e9liminaire, le syst\u00e8me entier est simul\u00e9, ainsi le profil de charge effectif est appliqu\u00e9 \u00e0 la sonde. Si l&rsquo;on souhaite simuler 50 ans, il faut entrer la valeur 17885 (49 * 365), c&rsquo;est-\u00e0-dire que 49 ans sont pr\u00e9-simul\u00e9s et que la simulation annuelle habituelle suit.Le chauffage du sol d\u00e9finit la diff\u00e9rence entre la temp\u00e9rature moyenne annuelle de l&rsquo;air et la surface du sol. Les valeurs typiques sont:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>for\u00eat, ombrag\u00e9 :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0 K<\/li>\n\n\n\n<li>Champ, prairie :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.8 K<\/li>\n\n\n\n<li>Valeur moyenne :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.5 K<\/li>\n\n\n\n<li>Urbain :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   2 K<\/li>\n\n\n\n<li>Altitude enneig\u00e9e :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bis 4 K<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Le gradient de temp\u00e9rature axial d\u00e9finit l&rsquo;augmentation de la temp\u00e9rature avec la profondeur. Il est d\u00e9fini comme le flux de chaleur g\u00e9othermique \/ la conductibilit\u00e9 thermique de la terre. Typique est de 0,03K\/m (0.06W\/m<sup>2<\/sup> \/ 2 W\/mK).<\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-7387b849 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.velasolaris.com\/wp-content\/uploads\/2023\/10\/image153-2.png\" alt=\"\" class=\"wp-image-75383\"\/><figcaption class=\"wp-element-caption\">Figure: Sonde g\u00e9othermique<\/figcaption><\/figure>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Polysun appelle l&rsquo;algorithme de sonde dans la simulation toutes les quatre minutes, ce qui conduit \u00e0 des r\u00e9sultats finaux tr\u00e8s pr\u00e9cis.<\/p>\n","protected":false},"author":19748,"featured_media":0,"parent":118234,"menu_order":37,"comment_status":"closed","ping_status":"closed","template":"","class_list":["post-118242","handbuch","type-handbuch","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - 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