Perancangan Pengendalian Bising Pada Ruang Operator Di Plant II CO2 PT. Petrokimia Gresik - Noise Control Design In Operator Room At Plant II Co2 PT. Petrokimia Gresik

Arisandi, Stefani (2015) Perancangan Pengendalian Bising Pada Ruang Operator Di Plant II CO2 PT. Petrokimia Gresik - Noise Control Design In Operator Room At Plant II Co2 PT. Petrokimia Gresik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Metode yang digunakan dalam pengendalian bising di Ruang Operator plant II CO2 ini adalah pengendalian bising berdasarkan medium propagansi struktur bangunan (structure borne noise). Penebalan difokuskan hanya pada bidang partisi dikarenakan bidang tersebut yang mempengaruhi Noise Reduction (NR) antara plant sebagai sumber bunyi dan ruang operator sebagai titik penerima bunyi. Pada dasarnya penelitian ini menggunakan nilai Noise Reduction (NR) dan Transmission Loss (TL) untuk menganalisis kemampuan suatu bahan dalam mereduksi bising setelah bahan tersebut dipertebal. Ketebalan rancangan dari masing-masing bahan partisi menghasilkan nilai Lp2 setelah perancangan. Batu bata dengan ketebalan 17 cm menyebabkan nilai Lp2 menjadi 46 dB. Kaca dengan ketebalan 0,8 cm menyebabkan nilai Lp2 menjadi 52 dB. Sedangkan kayu dengan ketebalan 5,5 cm menyebabkan nilai Lp2 menjadi 62 dB. Dengan demikian maka penebalan bidang partisi tersebut berhasil menurunkan nilai Lp2 sesuai dengan rentang tingkat kebisingan suara percakapan manusia yaitu 54-72 dB. Penelitian ini berhasil mereduksi tingkat kebisingan di dalam ruang operator menjadi <60 dB atau <50 dBA. Ketiga bahan partisi tersebut nilai TL semakin mengalami peningkatan seiring dengan makin besarnya frekuensi bunyi. Sedangkan nilai Lp2 relatif mengalami penurunan seiring dengan makin besarnya frekuensi bunyi. Hal ini sesuai dengan teori bahwa jika frekuensi semakin tinggi maka nilai TL juga semakin tinggi. Semakin besar nilai TL maka semakin besar pula bunyi yang mampu direduksi oleh bahan tersebut. Dinding yang direkomendasikan dalam perhitungan pengendalian bising ini adalah jenis brick painted. ======================================================================================================================== For noise control in operator room, the autor used a method based propagation medium of building structure or also known as structure borne noise. In order to reduce the noise, we need to thickening the partition field that affects Noise Reduction (NR) between the plant (as noise source) and operator room (as noice receiver). Basically this final project uses Noise Reduction (NR) and Transmission Loss (TL) to analyzes the ability of materials to reduces noise. The new thickness of each material has Lp2 value after it has thicked. The results are: Bricks 17 cm with Lp2 = 46 dB, glass 0,8 cm with Lp2 = 52 dB, and solid wood 5,5 cm with Lp2 = 62 dB. The thickening of partition fields has reduced Lp2 in range of human conversation noise between 52-72 dB. All the partition fields (A, B and C) Transmission Loss (TL) values increased along with the enhancement of sound frequencies. Whereas Lp2 values has decreased along with the enhancement of sound frequencies. This is consistent with the theory that sound frequency increasing while Transmission Loss (TL) value increasing too. If the value of Transmission Loss (TL) is bigger, then the material will absorbs higher noise. The walls that recommended in the calculation of noise control are bricks painted.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 620.23 Ari p
Uncontrolled Keywords: Bising, noise reduction, pengendalian bising industri, transmission loss, Noise, noise reduction, industrial noise control, transmission loss
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD892 Noise control
Divisions: Faculty of Industrial Technology > Physics Engineering
Depositing User: ansi aflacha
Date Deposited: 15 Nov 2019 09:16
Last Modified: 15 Nov 2019 09:16
URI: https://repository.its.ac.id/id/eprint/71825

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