Analisis Kebisingan Pada Sistem Heating, Ventilation, and Air Conditioning (HVAC) Ruang Penumpang Kereta Eksekutif Stainless Steel New Generation

Ardelia, Myra Rizky (2025) Analisis Kebisingan Pada Sistem Heating, Ventilation, and Air Conditioning (HVAC) Ruang Penumpang Kereta Eksekutif Stainless Steel New Generation. Other thesis, Institut Teknologi Spuluh Nopember.

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Abstract

Kebisingan di dalam kereta penumpang dapat bersumber dari structural borne noise maupun air borne noise. Ketika kondisi statis, kebisingan di dalam ruang penumpang kereta berasal dari beberapa sumber, salah satunya dari sistem HVAC (Heating, Ventilation, and Air Conditioning). Kebisingan yang dihasilkan oleh sistem HVAC berasal dari getaran mekanis komponennya, seperti kipas, kompresor, pompa, kondensor, dan turbulensi pada saluran udara (ducting). Pada penelitian ini, dilakukan analisis kebisingan akibat pengaruh sistem HVAC di dalam ruang penumpang Kereta Eksekutif Stainless Steel New Generation atau Kereta K1. Analisis ini diawali dengan melakukan simulasi untuk memperkurakan persebaran kebisingan di dalam ruang penumpang. Hasil simulasi menunjukkan pola sebaran kebisingan yang SPL tertingginya berada di tengah ruangan, ujung depan, dan di ujung belakang ruang penumpang. Lalu, pengukuran tingkat kebisingan dilakukan dengan mikrofon yang terintegrasi dengan soundcard dan sound analyzer pada beberapa titik di dalam ruang penumpang kereta. Hasil pengukuran menunjukkan bahwa kebisingan HVAC menurut pendengaran penumpang memiliki nilai di range 59,8 – 70,5 dBA. Titik dengan kebisingan tertinggi di pada area kursi penumpang berada di titik 2 R dengan nilai sebesar 66,6 dBA. Sedangkan titik dengan kebisingan tertinggi pada area gang way (posisi berdiri), berada di titik 2 dengan nilai 70,5 dBA. Sumber kebisingan dominannya dari frekuensi rendah dan menengah tepatnya di frekuensi 50 Hz sampai 1000 Hz, yang sumbernya dari fan, kompresor, kondensor, dan evaporator, serta diffuse noise
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Noise in passenger trains can originate from structural or airborne noise. When conditions are static, noise in the passenger compartment of a train originates from several sources, one of which is the HVAC (Heating, Ventilation, and Air Conditioning) system. Noise generated by the HVAC system comes from the mechanical vibrations of its components, such as fans, compressors, pumps, condensers, and turbulence in the air ducts (ducting). In this study, an analysis of noise due to the influence of the HVAC system in the passenger compartment of the New Generation Stainless Steel Executive Train or K1 Train was conducted. This analysis began with a simulation to estimate the distribution of noise in the passenger compartment. The simulation results showed a noise distribution pattern with the highest SPL in the center of the room, the front end, and at the rear end of the passenger compartment. Then, noise level measurements were carried out using a microphone integrated with a sound card and a sound analyzer at several points in the passenger compartment of the train. The measurement results showed that the HVAC noise according to passenger hearing had a value in the range of 59.8 – 70.5 dBA. The point with the highest noise in the passenger seat area is at point 2R with a value of 66.6 dBA. Meanwhile, the point with the highest noise in the gangway area (standing position), is at point 2 with a value of 70.5 dBA. The dominant noise sources are from low and mid frequencies, specifically in the frequency range of 50 Hz to 1000 Hz, which are sourced from the fan, compressor, condenser, and evaporator, as well as diffuse noise

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Noise, New Generation Train, HVAC System; Kebisingan, Kereta New Generation, Sistem HVAC.
Subjects:	Q Science > QC Physics > QC221 Acoustics. Sound
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Myra Rizky Ardelia
Date Deposited:	30 Jul 2025 01:26
Last Modified:	30 Jul 2025 01:26
URI:	http://repository.its.ac.id/id/eprint/121277

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