Bheatric Rajib Ferdinan, . (2025) STUDI NUMERIK PERPINDAHAN KALOR PADA FUNNEL BERONGGA SILINDER. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
Infrared radiation produced from ship exhaust gases poses a serious risk to human health and the environment, especially due to exposure to high temperatures that can trigger thermal stress, skin tissue damage, and occupational safety disturbances. This study aims to analyze the natural convection heat transfer in the design of a cylindrical hollow funnel with variations in the depth of the pipe cavity, in order to improve the efficiency of the Infrared Suppression System (IRS) on ships. Simulations were conducted using Computational Fluid Dynamics (Simscale) to model and analyze the variations in funnel design, which included a hole diameter of 0.20 m with cross-sectional lengths of 0.10 m, 0.20 m, and 0.21 m, as well as a surface temperature range between 375–750 K. Funnel variations with a cross-sectional length of 0.10 m resulted in the highest Nusselt number values (3116), the highest convective wall heat flux (29121 W/m²), and the highest thermal radiation at (4299 W/m²) at 750 K, indicating faster heat transfer than other designs. Visualization of fluid flow speed contours supports these findings, where buoyant plume patterns are formed more effectively, improving natural cooling efficiency. This research is expected to contribute to the development of more optimal IRS technology, improve crew safety, and reduce the impact of infrared radiation on the environment.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No. Panggil: 2110313012] [Pembimbing: Fajri Ashfi Rayhan] [Penguji 1: Purwo Joko Suranto] [Penguji 2: Fakhri Akbar Ayub] |
| Uncontrolled Keywords: | Heat Transfer, Natural Convection, Hollow Funnel, IRS |
| Subjects: | V Naval Science > V Naval Science (General) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering |
| Divisions: | Fakultas Teknik > Program Studi Teknik Perkapalan (S1) |
| Depositing User: | BHEATRIC RAJIB FERDINAN |
| Date Deposited: | 04 Aug 2025 08:42 |
| Last Modified: | 04 Aug 2025 08:42 |
| URI: | http://repository.upnvj.ac.id/id/eprint/38446 |
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