Yusiliana Pratiwi, . (2025) ANALISIS TERMODINAMIKA PADA SIKLUS BRAYTON SUPERKRITIS DENGAN FLUIDA KERJA CO2, C2H6, DAN N2O UNTUK PEMULIHAN LIMBAH PANAS DARI MARINE LOW-SPEED DIESEL ENGINE. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
The Supercritical Brayton Cycle (SBS) is a system used to generate electricity by utilizing heat from the exhaust gases of marine low-speed diesel engines, offering high performance and efficiency. SBS technology is expected to reduce emissions such as NOx, SOx, CO, and CO2 from diesel engine exhaust. This study focuses on two objectives: the energy generated by each engine component and thermal efficiency. The research examines three variations: working fluid, temperature, and pressure. The working fluids used are CO2, C2H6, and N2O. While temperature and pressure include five variations each. Results show that C2H6 produces the highest turbine work, compressor work, and heat input, amounting to 506.6 kJ/kg, 124.66 kJ/kg, and 716.78 kJ/kg, respectively. Thermal efficiency analysis reveals N2O as the most efficient working fluid, with an average efficiency of 60%, compared to 59% for CO2 and 58% for C2H6. However, energy loss analysis indicates that although C2H6 achieves the highest turbine and compressor work and heat input, it also incurs the highest energy losses at 258.93 kJ/kg under all conditions. This study evaluates SBS technology's effects with variations in working fluid, temperature, and pressure on waste heat utilization in marine diesel engines. The findings aim to support alternative technology development for reducing environmental pollution.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No.Panggil: 2110313024] [Pembimbing; Dr. Ir. Fajri Ashfi Rrayhan, ST., MT.] [Penguji 1: Fakhri Akbar Ayub, ST., M.Eng., Ph.D.] [Penguji 2: Purwo Joko Suranto, ST. MT.] |
| Uncontrolled Keywords: | brayton cycle, exhaust gas, turbine work, efficiency |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology 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: | YUSILIANA PRATIWI |
| Date Deposited: | 04 Feb 2025 08:31 |
| Last Modified: | 04 Feb 2025 08:31 |
| URI: | http://repository.upnvj.ac.id/id/eprint/35992 |
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