{"id":1724,"date":"2023-10-27T04:34:16","date_gmt":"2023-10-26T21:34:16","guid":{"rendered":"https:\/\/www.tneutron.net\/industri\/?p=1724"},"modified":"2023-10-23T14:08:22","modified_gmt":"2023-10-23T07:08:22","slug":"mengukur-aliran-secara-thermal","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/industri\/mengukur-aliran-secara-thermal\/","title":{"rendered":"Mengukur Aliran Secara Thermal"},"content":{"rendered":"<p><strong>a. Anemometer Kawat Panas<\/strong><br \/>\nMetoda ini cukup sederhana yaitu dengan menggunakan kawat yang dipanaskan oleh aliran listrik, arus yang mengalir pada kawat dibuat tetap konstan menggunakan sumber arus konstan. Jika ada aliran udara, maka kawat akan mendingin (seperti kita meniup lilin) dengan mendinginnya kawat, maka resistansi kawat menurun. Karena dipergunakan sumber arus konstan, maka kita dapat menyensor tegangan pada ujung-ujung kawat. Sensor jenis ini memiliki sensitivitas sangat baik untuk menyensor aliran gas yang lambat. Namun sayangnya penginstalasian keseluruhan sensor tergolong sulit.<br \/>\n<a href=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image-23.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image_thumb-22.png\" alt=\"image\" width=\"179\" height=\"36\" border=\"0\" \/><\/a><br \/>\nDisini berlaku rumus :<br \/>\ndi mana : I = arus kawat<br \/>\nRw = resistansi kawat<br \/>\nKc = faktor konversi, panas ke daya listrik<br \/>\nTw = temperatur kawat<br \/>\nTt = temperatur fluida yang mengalir<br \/>\nHc = koefisien film (pelapis) dari perpindahan panas<br \/>\nA = luas perpindahan panas<\/p>\n<p><a href=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image-24.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image_thumb-23.png\" alt=\"image\" width=\"304\" height=\"185\" border=\"0\" \/><\/a><br \/>\nGambar 3.65 Kontruksi Anemometer Kawat Panas<\/p>\n<p><strong>b. Perambatan Panas<br \/>\n<\/strong>Pada teknik perambatan panas, pemanas dipasang pada bagian luar pipa, pipa tersebut terbuat dari bahan logam. Di kiri dan kanan pemanas, dipasang bahan isolator panas, dan pada isolator ini dipasang sensor suhu. Bila udaramengalir dari kiri ke kanan, maka suhu disebelah kiri akan terasa lebih dingin dibanding suhu sebelah kanan.<br \/>\n<a href=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image-25.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image_thumb-24.png\" alt=\"image\" width=\"432\" height=\"199\" border=\"0\" \/><\/a><br \/>\nGambar 3.66 Flowmeter Rambatan Panas<\/p>\n<p>Sensor suhu yang digunakan dapat berupa sensor resistif tetapi yang biasa terpasang adalah thermokopel karena memiliki respon suhu yang cepat. Sensor aliran perambatan panas tipe lama, memanaskan seluruh bagian dari saluran udara, sehingga dibutuhkan pemanas sampai puluhan kilowatt, untuk mengurangi daya panas tersebut digunakan tipe baru dengan membelokkan sebagian kecil udara kedalam sensor.<\/p>\n<p><strong>c. Flowmeter Radio Aktif<br \/>\n<\/strong>Teknik pengukuran aliran dengan radio aktif adalah dengan menembakkan partikel netron dari sebuah pemancar radio aktif. Pada jarak tertentu kea rah outlet, dipasang detector. Bila terjadi aliran, maka akan terdeteksi adanya partikel radio aktif, jumlah partikel yang terdeteksi pada selang tertentu akan sebanding dengan kecepatan aliran fluida. Teknik lain yang masih menggunakan teknik radio aktif adalah dengan cara mencampurkan bahan radio aktif kedalam fluida kemudian pada bagian-bagian tertentu dipasang detector.<\/p>\n<p>Teknik ini dilakukan bila terjadi kesulitan mengukur misalnya karena bahan aliran terdiri dari zat yang berada pada berbagai fase. Teknik radio aktif ini juga biaa dipergunakan pada pengobatan yaitu mencari posisi pembuluh darah yang macet bagi penderita kelumpuhan.<br \/>\n<a href=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image-27.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/industri\/wp-content\/uploads\/sites\/3\/2017\/03\/image_thumb-26.png\" alt=\"image\" width=\"370\" height=\"210\" border=\"0\" \/><\/a><br \/>\nGambar 3.67 Flowmeter Cara Radiasi Nuklir<\/p>\n","protected":false},"excerpt":{"rendered":"<p>a. Anemometer Kawat Panas Metoda ini cukup sederhana yaitu dengan menggunakan kawat yang dipanaskan oleh aliran listrik, arus yang mengalir<\/p>\n","protected":false},"author":1,"featured_media":1722,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[1831],"tags":[2054,2058,2056,2057,2049,2051,2050,2052,2053,2055,2059],"class_list":["post-1724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sensor-dan-transduser","tag-alat-mengukur-aliran-fluida","tag-alat-untuk-mengukur-aliran","tag-cara-mengukur-aliran-air","tag-cara-mengukur-aliran-sungai","tag-mengukur-aliran","tag-mengukur-aliran-darah","tag-mengukur-aliran-fluida","tag-mengukur-aliran-udara","tag-mengukur-kecepatan-aliran-air","tag-mengukur-kecepatan-aliran-darah","tag-mengukur-luas-daerah-aliran-sungai"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mengukur Aliran Secara Thermal - TN Industri<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tneutron.net\/industri\/mengukur-aliran-secara-thermal\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Mengukur Aliran Secara Thermal - TN Industri\" \/>\n<meta name=\"twitter:description\" content=\"a. 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