Abstract
Blower is a device that is often used because it is able to increase or add gas that will be flowed in a particular room as well as suctioning or vacuuming gas. At present the blower is comprehensive, starting from laboratories, office buildings and industries which are widely used as a component in the production process. There are several classifications of blowers, namely centrifugal blowers which include radial blade, forward curve blade and backward curve blade. Then, the positive displacement blower includes the vane blower. This study aims to determine the performance of centrifugal blowers when adding the number of blades to the centrifugal impeller blower. There are 3 impellers that are used with variations in the number of different blades, 6, 8, and 10 in testing to find the performance of centrifugal blowers. Air speed is measured using an anemometer while pressure drop measured using a manometer U pipe containing oil fluid. The number of blade impeller affect the increasing performance of blower.
Highlights
Blower is a device that is often used because it is able to increase or add gas that will be flowed in a particular room as well as suctioning or vacuuming gas
This study aims to determine the performance of centrifugal blowers when adding the number of blades to the centrifugal impeller blower
Sedangkan kapasitas (Q) terkecil didapati pada jenis impeller dengan jumlah 6 sudu sebesar 81.12 m3/h pada putaran sebesar yaitu 872 rpm
Summary
Bahan dan yang digunakan dalam penelitian ini ialah satu set blower sentrifugal seperti pada Gambar 1 dan 3 set impeller dengan 3 variasi jumalah sudu impeller sepertoi pada Gambar 2. Anemometer seperti pada Gambar 3 digunakan untuk mengukur kecepatan udara yang keluar dari blower sentrifugal. Mempersiapkan jumlah minyak yang akan digunakan untuk pengujian pressure drop : Menimbang tabung suntik menggunakan neraca digital agar diketahui berat tara dari tabung suntik. Memasukkan minyak yang sudah diukur kedalam selang air untuk proses pengukuran pressure drop dan tunggu hingga minyak didalam stabil. Mengukur putaraan poros impeller menggunakan tachometer dengan mengarahkan laser dari alat tersebut kedalam impeller yang sudah diberi tanda, agar bisa diukur putaran oleh alat tersebut yang dapat dilihat dari monitor kecil alat tersebut dan catat pada tabel analisa data. Lakukan pengambilan data untuk tiap tiap impeller dengan cara yang sama seperti diatas
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