{"id":23040,"date":"2024-10-31T15:53:39","date_gmt":"2024-10-31T15:53:39","guid":{"rendered":"https:\/\/sgciafrica.org\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\/"},"modified":"2026-02-12T13:58:49","modified_gmt":"2026-02-12T13:58:49","slug":"des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique","status":"publish","type":"post","link":"https:\/\/sgciafrica.org\/fr\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\/","title":{"rendered":"Des scientifiques rwandais d\u00e9couvrent des arbres \u00e0 fort potentiel \u00e9nerg\u00e9tique"},"content":{"rendered":"\n

Des scientifiques rwandais ont d\u00e9couvert des arbres susceptibles de produire de l’\u00e9lectricit\u00e9 propre.<\/p>\n\n

Les scientifiques de l’Office des for\u00eats du Rwanda ont identifi\u00e9 deux esp\u00e8ces d’arbres susceptibles de produire de l’\u00e9lectricit\u00e9 propre et d’alimenter ainsi les communaut\u00e9s isol\u00e9es.<\/p>\n\n

Le Rwanda s’est fix\u00e9 pour objectif d’atteindre un taux d’acc\u00e8s \u00e0 l’\u00e9lectricit\u00e9 de 100 % d’ici 2030, mais l’acc\u00e8s \u00e0 l’\u00e9lectricit\u00e9 dans les zones rurales reste limit\u00e9.<\/p>\n\n

Pour y rem\u00e9dier, les chercheurs \u00e9tudient la possibilit\u00e9 de produire de l’\u00e9lectricit\u00e9 \u00e0 partir de la biomasse v\u00e9g\u00e9tale cultiv\u00e9e de mani\u00e8re durable, en \u00e9valuant le potentiel \u00e9nerg\u00e9tique de diverses esp\u00e8ces d’arbres.<\/p>\n\n

Bonaventure Ntirugulirwa, chercheur principal \u00e0 la t\u00eate de l’initiative, a d\u00e9clar\u00e9 que la biomasse avait \u00e9t\u00e9 largement ignor\u00e9e, malgr\u00e9 son potentiel pour remplacer les combustibles fossiles conventionnels en tant qu’alternative \u00e9nerg\u00e9tique.<\/p>\n\n

\u00ab\u00a0Ce projet a \u00e9t\u00e9 con\u00e7u pour r\u00e9pondre aux besoins en \u00e9lectricit\u00e9 des zones rurales\u00a0\u00bb, a-t-il d\u00e9clar\u00e9.<\/p>\n\n

Apr\u00e8s avoir \u00e9tudi\u00e9 le potentiel de biomasse d’un certain nombre d’arbres et d’arbustes \u00e0 croissance rapide, les chercheurs ont identifi\u00e9 les esp\u00e8ces Senna siamea<\/em> et Gliricidia sepium<\/em> comme des candidats de choix pour la production d’\u00e9lectricit\u00e9.<\/p>\n\n

La densit\u00e9 \u00e9lev\u00e9e du bois et le pouvoir calorifique de ces arbres signifient qu’ils br\u00fblent efficacement, ce qui en fait des alternatives \u00e0 haute temp\u00e9rature aux combustibles fossiles.<\/p>\n\n

M. Ntirugulirwa explique que l’objectif de la recherche n’est pas seulement de trouver des arbres qui br\u00fblent efficacement, mais aussi de combler durablement les d\u00e9ficits \u00e9nerg\u00e9tiques dans les r\u00e9gions isol\u00e9es.<\/p>\n\n

La recherche, a-t-il d\u00e9clar\u00e9, \u00ab\u00a0contribuera \u00e0 la r\u00e9alisation de plusieurs objectifs, tels que la protection des terres, l’am\u00e9lioration des sols, la s\u00e9curit\u00e9 alimentaire, l’att\u00e9nuation du changement climatique et la r\u00e9duction de la pauvret\u00e9 rurale\u00a0\u00bb.<\/p>\n\n

Les chercheurs ont explor\u00e9 le potentiel d’esp\u00e8ces d’arbres \u00e0 usages multiples telles que Cajanus ca<\/em> jan (pois d’Angole), Calliandra calothyrsus<\/em>, Hagenia abyssinica<\/em> (s\u00e9quoia africain) et Senna spectabilis (s\u00e9n\u00e9 \u00e0 \u00e9corce blanche)<\/em>.<\/p>\n\n

Ces arbres ne fournissent pas seulement du combustible pour la production d’\u00e9lectricit\u00e9, mais aussi des ressources pr\u00e9cieuses pour les agriculteurs et leurs communaut\u00e9s, a d\u00e9clar\u00e9 M. Ntirugulirwa.<\/p>\n\n

\u00ab\u00a0Les agriculteurs ont \u00e9t\u00e9 autoris\u00e9s \u00e0 tester un ensemble donn\u00e9 de pratiques sur leur exploitation et \u00e0 s\u00e9lectionner celles qui fonctionnent le mieux dans leurs conditions\u00a0\u00bb, a-t-il expliqu\u00e9.<\/p>\n\n

Les agriculteurs des diff\u00e9rentes r\u00e9gions ont identifi\u00e9 leurs esp\u00e8ces pr\u00e9f\u00e9r\u00e9es en fonction des conditions et des besoins locaux, a-t-il ajout\u00e9.<\/p>\n\n

Les esp\u00e8ces d’arbres les plus prometteuses ayant \u00e9t\u00e9 identifi\u00e9es, les chercheurs affirment qu’ils se concentrent d\u00e9sormais sur la production d’\u00e9lectricit\u00e9.<\/p>\n\n

Pour ce faire, le projet s’appuiera sur la participation active des agriculteurs afin de cultiver suffisamment de biomasse pour la production d’\u00e9nergie, a d\u00e9clar\u00e9 M. Ntirugulirwa.<\/p>\n\n

Jusqu’\u00e0 pr\u00e9sent, l’\u00e9quipe a mesur\u00e9 le pouvoir calorifique de la biomasse \u00e0 l’Office rwandais de normalisation. Toutefois, les tests portant sur d’autres \u00e9l\u00e9ments cl\u00e9s tels que le carbone et l’hydrog\u00e8ne devront \u00eatre effectu\u00e9s en Su\u00e8de, car le Rwanda ne dispose pas de l’\u00e9quipement sp\u00e9cialis\u00e9 n\u00e9cessaire. <\/p>\n\n

Babatunde Ajayi, professeur de technologie des produits du bois et des bio-ressources \u00e0 l’universit\u00e9 f\u00e9d\u00e9rale de technologie d’Akure, au Nigeria, a salu\u00e9 l’approche du projet, notamment en ce qui concerne la lutte contre les p\u00e9nuries alimentaires, la pauvret\u00e9 et les coupures d’\u00e9lectricit\u00e9 dans les zones rurales. <\/p>\n\n

\u00ab\u00a0C’est une bonne chose que l’initiative permette de r\u00e9soudre ces probl\u00e8mes\u00a0\u00bb, a-t-il d\u00e9clar\u00e9.<\/p>\n\n

\u00ab\u00a0L’utilisation de la biomasse pour produire de l’\u00e9lectricit\u00e9 est une id\u00e9e int\u00e9ressante, en particulier dans les zones rurales o\u00f9 l’acc\u00e8s \u00e0 l’\u00e9lectricit\u00e9 est extr\u00eamement faible\u00a0\u00bb, a ajout\u00e9 M. Ajayi.<\/p>\n\n

Il a compar\u00e9 ce processus \u00e0 l’\u00e9nergie solaire, qui utilise la lumi\u00e8re du soleil pour produire de l’\u00e9lectricit\u00e9.<\/p>\n\n

\u00ab\u00a0Une fois la biomasse introduite dans une machine, celle-ci la convertit en \u00e9nergie \u00e9lectrique\u00a0\u00bb, a expliqu\u00e9 M. Ajayi.<\/p>\n\n

\u00ab\u00a0C’est comme l’utilisation de l’\u00e9nergie solaire : un panneau est plac\u00e9 \u00e0 l’ext\u00e9rieur, le soleil frappe le panneau et l’\u00e9nergie est convertie en \u00e9lectricit\u00e9.<\/p>\n\n

Le projet de recherche a \u00e9t\u00e9 financ\u00e9 par la Science Granting Councils Initiative (SGCI) en collaboration avec le Conseil national rwandais pour la science et la technologie.<\/p>\n\n

Cet article a \u00e9t\u00e9 \u00e9crit par Afeez Bolaji<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Des scientifiques rwandais ont d\u00e9couvert des arbres susceptibles de produire de l’\u00e9lectricit\u00e9 propre. Les scientifiques de l’Office des for\u00eats du Rwanda ont identifi\u00e9 deux esp\u00e8ces d’arbres susceptibles de produire de l’\u00e9lectricit\u00e9 propre et d’alimenter ainsi les communaut\u00e9s isol\u00e9es. Le Rwanda s’est fix\u00e9 pour objectif d’atteindre un taux d’acc\u00e8s \u00e0 l’\u00e9lectricit\u00e9 de 100 % d’ici 2030,…<\/p>\n","protected":false},"author":13,"featured_media":22002,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","wds_primary_category":0,"wds_primary_country":0,"wds_primary_objective":0,"wds_primary_sg_theme":0,"footnotes":""},"categories":[161],"tags":[],"country":[],"objective":[],"sg_theme":[],"class_list":["post-23040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"acf":[],"yoast_head":"\nDes scientifiques rwandais d\u00e9couvrent des arbres \u00e0 fort potentiel \u00e9nerg\u00e9tique - SGCI Africa<\/title>\n<meta name=\"description\" content=\"Des scientifiques rwandais d\u00e9couvrent des esp\u00e8ces d\u2019arbres \u00e0 fort potentiel \u00e9nerg\u00e9tique, offrant une solution durable pour renforcer l\u2019approvisionnement en \u00e9lectricit\u00e9 du pays.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sgciafrica.org\/fr\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Des scientifiques rwandais d\u00e9couvrent des arbres \u00e0 fort potentiel \u00e9nerg\u00e9tique\" \/>\n<meta property=\"og:description\" content=\"Des scientifiques rwandais d\u00e9couvrent des esp\u00e8ces d\u2019arbres \u00e0 fort potentiel \u00e9nerg\u00e9tique, offrant une solution durable pour renforcer l\u2019approvisionnement en \u00e9lectricit\u00e9 du pays.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sgciafrica.org\/fr\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\/\" \/>\n<meta property=\"og:site_name\" content=\"SGCI Africa\" \/>\n<meta property=\"article:published_time\" content=\"2024-10-31T15:53:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-12T13:58:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sgciafrica.org\/wp-content\/uploads\/2024\/10\/wood-4191159_BODY.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"996\" \/>\n\t<meta property=\"og:image:height\" content=\"567\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Davis Weddi\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SGCIAfrica\" \/>\n<meta name=\"twitter:site\" content=\"@SGCIAfrica\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Davis Weddi\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/sgciafrica.org\\\/fr\\\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sgciafrica.org\\\/fr\\\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\\\/\"},\"author\":{\"name\":\"Davis Weddi\",\"@id\":\"https:\\\/\\\/sgciafrica.org\\\/#\\\/schema\\\/person\\\/428f9ad4d83bdadcb2d6d2110d2fcf92\"},\"headline\":\"Des scientifiques rwandais d\u00e9couvrent des arbres \u00e0 fort potentiel \u00e9nerg\u00e9tique\",\"datePublished\":\"2024-10-31T15:53:39+00:00\",\"dateModified\":\"2026-02-12T13:58:49+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/sgciafrica.org\\\/fr\\\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\\\/\"},\"wordCount\":773,\"publisher\":{\"@id\":\"https:\\\/\\\/sgciafrica.org\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/sgciafrica.org\\\/fr\\\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/sgciafrica.org\\\/wp-content\\\/uploads\\\/2024\\\/10\\\/wood-4191159_BODY.jpg\",\"articleSection\":[\"Actualit\u00e9s\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/sgciafrica.org\\\/fr\\\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\\\/\",\"url\":\"https:\\\/\\\/sgciafrica.org\\\/fr\\\/des-scientifiques-rwandais-decouvrent-des-arbres-a-fort-potentiel-energetique\\\/\",\"name\":\"Des scientifiques rwandais d\u00e9couvrent des arbres \u00e0 fort potentiel \u00e9nerg\u00e9tique - 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Le Rwanda s’est fix\u00e9 pour objectif d’atteindre un taux d’acc\u00e8s \u00e0 l’\u00e9lectricit\u00e9 de 100 % d’ici 2030,…","_links":{"self":[{"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/posts\/23040","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/comments?post=23040"}],"version-history":[{"count":0,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/posts\/23040\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/media\/22002"}],"wp:attachment":[{"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/media?parent=23040"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/categories?post=23040"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/tags?post=23040"},{"taxonomy":"country","embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/country?post=23040"},{"taxonomy":"objective","embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/objective?post=23040"},{"taxonomy":"sg_theme","embeddable":true,"href":"https:\/\/sgciafrica.org\/fr\/wp-json\/wp\/v2\/sg_theme?post=23040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}