BAHARI, BAGAS OKTA (2026) ANALISIS PENGARUH KINERJA SELENOID VALVE DAN OIL INLET HOSE TERHADAP OVERHEATING PADA KOMPRESOR SEKRUP CSD 122. S1 thesis, Universitas Mercu Buana Jakarta.
|
Text (HAL COVER)
Cover.pdf Download (914kB) | Preview |
|
![[img]](https://repository.mercubuana.ac.id/style/images/fileicons/text.png) |
Text (BAB I)
Bab 1.pdf Restricted to Registered users only Download (36kB) |
|
|
Text (BAB II)
Bab 2.pdf Restricted to Registered users only Download (526kB) |
|
|
Text (BAB III)
Bab 3.pdf Restricted to Registered users only Download (243kB) |
|
|
Text (BAB IV)
Bab 4.pdf Restricted to Registered users only Download (477kB) |
|
|
Text (BAB V)
Bab 5.pdf Restricted to Registered users only Download (93kB) |
|
|
Text (DAFTAR PUSTAKA)
Daftar Pustaka.pdf Restricted to Registered users only Download (92kB) |
|
|
Text (LAMPIRAN)
Lampiran.pdf Restricted to Registered users only Download (617kB) |
Abstract
Screw compressors are important equipment in industrial pneumatic systems that require optimal lubrication and cooling systems to maintain operational stability. One of the problems that often occurs is overheating, which can reduce compressor performance and accelerate damage to internal components. This study aims to analyze the effect of solenoid valve and oil inlet hose performance on overheating in a CSD 122 screw compressor using an experimental quantitative approach. The research method is carried out through direct measurements of operating parameters including oil temperature, oil pressure, and oil flow rate under normal conditions, fault conditions, and after repairs. The analysis is carried out by calculating changes in flow rate and pressure drop due to blockages in the oil inlet hose and limited solenoid valve openings. Calculation of the flow cross-sectional area and evaluation of temperature increases are carried out based on the system energy balance. The results showed that the solenoid valve with an orifice diameter of 8 mm had a flow cross-sectional area of 5.03 × 10⁻⁵ m², while the oil inlet hose with an inner diameter of 12 mm experienced partial blockage so that the effective flow area decreased from 1.13 × 10⁻⁴ m² to 5.50 × 10⁻⁵ m². The combination of these two conditions caused a double flow restriction that increased the pressure drop to more than 1 bar and decreased the oil flow from 1.70 × 10⁻⁴ m³/s to 1.18 × 10⁻⁴ m³/s or by 30.6%. The decrease in oil flow resulted in a suboptimal cooling process so that the oil temperature increased to 105°C, which is 16.67% above the safe operating limit of 90°C. Repair actions in the form of replacing the solenoid valve, cleaning the oil flow system, and modifying the diameter of the oil inlet hose to 14 mm were proven to be able to increase the oil flow to 1.95 × 10⁻⁴ m³/s and reduce the compressor operating temperature to 78°C. Thus, the decrease in the performance of the lubrication system is the main factor causing overheating in the CSD 122 screw compressor, so regular maintenance and monitoring of the lubrication system is required to prevent overheating. Keywords: screw compressor, solenoid valve, oil inlet hose, lubrication system, overheating. Kompresor sekrup merupakan peralatan penting dalam sistem pneumatik industri yang membutuhkan sistem pelumasan dan pendinginan yang optimal untuk menjaga kestabilan operasi. Salah satu permasalahan yang sering terjadi adalah overheating, yang dapat menurunkan kinerja kompresor serta mempercepat kerusakan komponen internal. Penelitian ini bertujuan menganalisis perngaruh kinerja selenoid valve dan oil inlet hose terhadap terjadinya overheating pada kompresor sekrup CSD 122 menggunakan pendekatan kuantitatif eksperimental. Metode penelitian dilakukan melalui pengukuran langsung parameter operasi yang meliputi temperatur oli, tekanan oli, dan debit aliran oli pada kondisi normal, kondisi gangguan, serta setelah dilakukan perbaikan. Analisis dilakukan dengan menghitung perubahan debit aliran dan pressure drop akibat penyumbatan pada oil inlet hose serta keterbatasan bukaan selenoid valve. dilakukan perhitungan luas penampang aliran dan evaluasi kenaikan temperatur berdasarkan neraca energi sistem. Hasil penelitian menunjukkan bahwa solenoid valve dengan diameter orifice 8 mm memiliki luas penampang aliran sebesar 5,03 × 10⁻⁵ m², sedangkan oil inlet hose berdiameter dalam 12 mm mengalami penyumbatan parsial sehingga luas efektif aliran menurun dari 1,13 × 10⁻⁴ m² menjadi 5,50 × 10⁻⁵ m². Kombinasi kedua kondisi tersebut menyebabkan pembatasan aliran ganda yang meningkatkan pressure drop hingga lebih dari 1 bar dan menurunkan debit oli dari 1,70 × 10⁻⁴ m³/s menjadi 1,18 × 10⁻⁴ m³/s atau sebesar 30,6%. Penurunan debit oli mengakibatkan proses pendinginan tidak optimal sehingga temperatur oli meningkat hingga 105°C, yaitu 16,67% di atas batas aman operasi 90°C. Tindakan perbaikan berupa penggantian solenoid valve, pembersihan sistem aliran oli, serta modifikasi diameter oil inlet hose menjadi 14 mm terbukti mampu meningkatkan debit oli menjadi 1,95 × 10⁻⁴ m³/s dan menurunkan temperatur operasi kompresor menjadi 78°C. Dengan demikian, penurunan kinerja sistem pelumasan merupakan faktor utama penyebab overheating pada kompresor sekrup CSD 122, sehingga diperlukan perawatan dan pemantauan sistem pelumasan secara berkala untuk mencegah terjadinya overheating. Kata kunci: kompresor sekrup, solenoid valve, oil inlet hose, sistem pelumasan, overheating.
| Item Type: | Thesis (S1) |
|---|---|
| NIM/NIDN Creators: | 41323120006 |
| Uncontrolled Keywords: | kompresor sekrup, solenoid valve, oil inlet hose, sistem pelumasan, overheating. |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.8 Machine Engineering, Machinery/Teknik Mesin 600 Technology/Teknologi > 690 Buildings/Teknik Bangunan > 697 Heating, ventilating, air-conditioning engineering/Teknik Pemanasan Rumah, Teknik Pemanas Ruangan, Teknik Ventilasi dan Pendingin Ruangan AC > 697.9 Ventilation and Air Conditioning/Teknik Ventilasi dan Pendingin Ruangan AC |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | khalimah |
| Date Deposited: | 06 Mar 2026 02:53 |
| Last Modified: | 06 Mar 2026 02:53 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/101423 |
Actions (login required)
 |
View Item |
