Al-Fikri, Shifa (2026) Analisis Numerik Pengaruh Rancangan Sistem Ventilasi Terhadap Distribusi Temperatur, Kecepatan, Dan Karakteristik Aliran Udara Ruang Server DPTSI-ITS. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Ruang server DPTSI-ITS memiliki total beban pendinginan sebesar 93,15 kW dengan kontribusi beban panas terbesar berasal dari peralatan IT sebesar 90 kW. Tingginya disipasi panas ini menuntut sistem manajemen termal yang efektif untuk mencegah kegagalan operasional. Penelitian ini bertujuan untuk mengevaluasi kinerja sistem ventilasi eksisting dan merancang optimasi desain menggunakan metode simulasi Computational Fluid Dynamics (CFD). Tiga skenario disimulasikan, meliputi kondisi eksisting serta dua variasi modifikasi posisi inlet dan outlet (Variasi A dan Variasi B) untuk menganalisis distribusi temperatur, kecepatan, dan pola aliran udara. Hasil simulasi menunjukkan bahwa kondisi eksisting memiliki kinerja yang kurang optimal, ditandai dengan temperatur udara maksimum di sekitar rak mencapai 35°C dan pola aliran yang didominasi oleh resirkulasi turbulen. Penerapan modifikasi desain Variasi A mampu menurunkan temperatur maksimum sebesar 8,57% menjadi 32°C. Namun, peningkatan kinerja paling signifikan dihasilkan oleh Variasi B. Konfigurasi ini berhasil menurunkan temperatur udara maksimum secara drastis sebesar 34,29% menjadi 23°C dan menurunkan temperatur rata-rata ruang menjadi 19,87°C. Keunggulan Variasi B dicapai melalui pembentukan pola aliran yang lebih terarah (streamlined) dengan kecepatan rata-rata 0,915 m/s, yang efektif menghilangkan hotspot tanpa menimbulkan turbulensi berlebih. Berdasarkan hasil tersebut, desain Variasi B direkomendasikan sebagai solusi sistem ventilasi terbaik untuk ruang server DPTSI-ITS.
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The DPTSI-ITS server room operates with a total cooling load of 93.15 kW, with the IT equipment accounting for 90 kW of heat dissipation. This substantial thermal load requires an effective thermal management system to prevent operational failure. This study aims to evaluate the performance of the existing ventilation system and propose design optimizations using Computational Fluid Dynamics (CFD) simulation. Three scenarios were simulated, including the existing condition and two modified inlet/outlet position variations (Variation A and Variation B), to analyze temperature distribution, velocity, and airflow patterns. The simulation results indicated that the existing condition performed sub-optimally, characterized by a maximum air temperature around the racks reaching 35°C and flow patterns dominated by turbulent recirculation. The implementation of design Variation A reduced the maximum temperature by 8.57% to 32°C. However, the most significant performance improvement was demonstrated by Variation B. This configuration successfully reduced the maximum air temperature drastically by 34.29% to 23°C and lowered the average room temperature to 19.87°C. The superiority of Variation B was achieved through the formation of a streamlined flow pattern with an average velocity of 0.915 m/s, which effectively eliminated hotspots without generating excessive turbulence. Based on these results, Variation B is recommended as the optimal ventilation system solution for the DPTSI-ITS server room.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Aliran Udara, Computational Fluid Dynamics (CFD), Distribusi Temperatur, Mixed-supply ventilation, Optimasi Ventilasi, Ruang Server, Airflow, Computational Fluid Dynamics (CFD), Mixed-supply ventilation, Server Room, Temperature Distribution, Ventilation Optimization |
| Subjects: | T Technology > T Technology (General) > T57.62 Simulation T Technology > TH Building construction > TH7687.7 Cooling Systems and details |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
| Depositing User: | Shifa Al-Fikri |
| Date Deposited: | 04 Feb 2026 07:24 |
| Last Modified: | 04 Feb 2026 07:24 |
| URI: | http://repository.its.ac.id/id/eprint/132113 |
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