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All Journal Komunikasi Fisika Indonesia Jurnal Fisika Unand JISTech (Journal of Islamic Science and Technology)
Zubair Aman Daulay
Universitas Islam Negeri Sumatera Utara
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics Other

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Pemanfaatan Pelepah Pisang Sebagai Treatment Akustik Pada Ruang Masjid Al Ikhlas Jalan Timor Medan Sri Wahyuni; Mulkan Iskandar Nasution; Zubair Aman Daulay
Jurnal Fisika Unand Vol 12 No 1 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (466.458 KB) | DOI: 10.25077/jfu.12.1.101-107.2023

Abstract

Penelitian ini dilakukan untuk mengetahui pengaruh treatment akustik terhadap kenyamanan pada ruang Masjid dengan menggunakan pelepah pisang (α = 0,71). Kemudian menempatkan sampel pelepah pisang berukuran 25 x 25 x 2 cm pada dinding Masjid untuk mengukur tingkat tekanan bunyi dan waktu dengung menggunakan alat ukur sound level meter. Nilai tingkat tekanan bunyi turun dari 71,2 dB menjadi 55 dB, nilai waktu dengung dengan menggunakan metode sabine dan percobaan berturut-turut turun dari 1,89 s menjadi 1,5 s dan dari 1,78 s menjadi 1,56 s. Pelepah pisang memiliki pengaruh yang baik untuk dijadikan  bahan treatment akustik ruang karena memiliki daya serap dan daya simpan yang baik dalam kondisi kering. 
Penerapan Barrier Buatan Untuk Mereduksi Tingkat Kebisingan Jalan Raya Pada Kawasan Pemukiman di Jalan Halat Kota Medan Cici Chairani; Mulkan Iskandar Nasution; Zubair Aman Daulay
Jurnal Fisika Unand Vol 12 No 1 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.505 KB) | DOI: 10.25077/jfu.12.1.108-114.2023

Abstract

Meningkatnya jumlah penduduk dan sarana transportasi dalam aktivitas mobilitas dapat menimbulkan dampak kebisingan. Kebisingan adalah sumber bising paling utama. Kebisingan pada sekarang terutama di perkotaan memiliki dampak kebisingan yang tidak disadari dapat menimbulkan dampak buruk bagi kesehatan dan kenyamanan lingkungan. Telah dilakukan penelitian tingkat kebisingan di Jalan Halat Kota Medan. Tujuan penelitian ini untuk mengetahui tingkat kebisingan, pola sebaran kebisingan, dan penerapan barrier buatan. Metode pengukuran yang digunakan mengacu pada Surat Keputusan Menteri Lingkungan Hidup No.48/MENLH/11/1996. Alat yang digunakan untuk pengukuran kebisingan adalah Sound Level Meter tipe TL 200. Untuk pemetaan dengan menggunakan Software Surfer Golden Versi 20. Penelitian ini memiliki 32 titik yang terdiri dari 8 titik pada pembatas jalan dan 24 titik pada pemukiman penduduk. Untuk mereduksi kebisingan menggunakan barrier buatan dari bahan triplek. Dari hasil penelitian, diperoleh tingkat kebisingan tertinggi sebesar 76,2 dBA dan tingkat kebisingan terendah sebesar 59,5 dBA. Jalan Halat Kota Medan memiliki nilai kebisingan yang melebihi standar baku mutu 55 dBA.
STUDI PENERAPAN AKUSTIK PADA GERBONG KERETA API SRI LELAWANGSA Riri Angriani Nasution; Zubair Aman Daulay; Abdul Halim Daulay
Komunikasi Fisika Indonesia Vol 20, No 2 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.20.2.171-178

Abstract

This study aims to determine the noise level in the Sri Lelawangsa train carriage without the addition of sound-absorbing materials and to determine the thickness of the sound-absorbing material needed to meet the acoustic comfort standard if it is simulated in a sample testing room. Noise level measurements were carried out on the Sri Lelawangsa train carriages in conditions without the addition of sound-absorbing materials. This noise level measurement was carried out in three carriages of the Sri Lelawangsa train, namely the train carriage, engine carriage, and passenger carriage, the source of noise comes from outside and inside the Sri Lelawangsa train. The study of the application of acoustics was carried out in a sample testing room made of cardboard boxes with a length of 34cm, width 25, cm and height 32 cm, and the source of noise in the sample testing room was the speaker. The absorbent material used to meet the acoustic comfort standard is pyramidal foam which is placed on the nearest side of the sound source. The measuring instrument used to measure noise on the Sri Lelawangsa train is a sound level meter and the Surfer Golden V16 software is used to describe the distribution of sound in the Sri Lelawangsa train carriage. The noise level on the Sri Lelawangsa train still exceeds the quality standard set by the Regulation of the Minister of Transportation of the Republic of Indonesia No. 75 of 2015 which is 80 dB. The highest noise level in the passenger car is at point (1) 82.81 dB. The machinist carriage is 84.70 dB, and the engine carriage is at point (2) 88.92 dB. After measuring the reverberation time on the Sri Lelawangsa train carriage, it is known that the surface area of the sound absorbing material needed to meet the reverberation time standard on the Sri Lelawangsa train carriage is 34,83 m3 with an absorption coefficient (α) of 0.58 according to with the provisions of SNI 03-6306-2000.
STUDI KENYAMAN AKUSTIK PADA RUANG AULA BMKG STASIUN KLIMATOLOGI KELAS 1 DELI SERDANG Zubair Aman Daulay; Abdul Halim Daulay; Widia Arti Syafitri
JISTech (Journal of Islamic Science and Technology) Vol 8, No 2 (2023)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v8i2.19061

Abstract

The purpose of this study was to determine the acoustic comfort level of the BMKG Hall Class 1 Deli Serdang Climatology Station before and after the treatment of the room in the form of adding sound-absorbing materials. The purpose of this study was to measure the noise level and optimize the effect of noise with acoustic comfort standards in accordance with KEPMENLH No. 48 of 1996 concerning Noise Level Standards in the BMKG Hall of Class 1 Deli Serdang Climatology Station. Sample Materials The materials used for sound absorption in the room are newsprint pulp and cork waste (Styrofoam) with a thickness of 3 cm. This research is motivated by the high noise below in the room which causes hearing discomfort in the room. The results of the physical test of newsprint and cork pulp (Styrofoam) at frequencies of 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, and 4000 Hz obtained absorption coefficients of 0.47, 0.36, 0.48, 0.36, 0.55 and 0, 59 with the results of Reverberation Time (RT) calculations at frequencies of 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, and 4000 Hz, the results obtained are RT 2.13 s, 1.35 s, 1.01 s, 0.80 s, 0.79 s, 0.82 s.
Co-Authors Abdul Halim Daulay Anak Agung Gede Sugianthara Cici Chairani Mulkan Iskandar Nasution Riri Angriani Nasution Widia Arti Syafitri