Analisa Penambahan Intercooler Pada Snorkel Tank Kapal Selam Saat Mode Snorkel

Fadholi, Ipung Nur Wahyu (2023) Analisa Penambahan Intercooler Pada Snorkel Tank Kapal Selam Saat Mode Snorkel. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 04211940000126-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2025. Download (7MB) | Request a copy

Abstract

Sistem ventilasi pada kapal selam memiliki peranan penting dalam dalam menyuplai udara untuk pembakaran mesin, emisi panas, pernapasan, dan kebutuhan kompresi udara seperti compressor dll. Ventilasi yang kurang optimal disebabkan oleh kapasitas udara yang masuk belum memenuhi kebutuhan atau massa udara yang dibutuhkan belum memenuhi. Latar belakang penelitian ini karena adanya penurunan tekanan khususnya pada kamar mesin kapal selam sebesar 0,968 bar sehingga ventilasi yang ada saat ini kurang optimal karena tekanan normal adalah 1,01325 bar. Maka penelitian ini bertujuan untuk menganalisa bagaimana pengaruh penambahan intercooler dengan prinsip kerja mendinginkan udara yang masuk ke kapal selam agar suhu udara masuk sesuai dengan kebutuhan kebutuhan suhu dan tekanan ideal. Oleh karena ini pada penelitian ini berfokus untuk menurunkan suhu supaya massa udara meningkat sehingga tekanan di kamar mesin meningkat. Kebutuhan suhu udara di kamar mesin didapatkan melalui persamaan gas ideal sehingga didapatkan suhu udara masuk sebesar 25,6 oC dari kondisi eksisting sebesar 37,968 oC. Penelitian ini dilakukan dengan melakukan variasi ketinggian fin hingga batas maksimal dimensi ducting, namun masih belum memenuhi kebutuhan sehingga dipilih ketinggian maksimum untuk dilakukan penambahan luas permukaan yang digunakan. Selanjutnya dilakukan variasi kecepatan air pendingin karena keceparan air berbanding lurus dengan energi perpindahan panas sehingga didapatkan model fin yang memenuhi kebutuhan sebesar -1070,488 Watt. Suhu hasil simulasi intercooler selanjutnya digunakan untuk inlet simulasi di kamar mesin.
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The submarine's ventilation system plays an important role in providing air for engine combustion, heat generation, breathing, and the need to use compressed air such as air compressors. The ventilation system is less than optimal because the incoming air capacity does not meet the demand or the required air volume is not met. The bottom of this study is due to the Different pressure, especially in the submarine's engine room, which is 0.968 bar, while the current ventilation system is not optimal because the normal pressure is 1.01325 bar. Therefore, this study aims to analyze the impact of adding an intermediate cooler with the operating principle of cooling the air entering the submarine so that the incoming air temperature meets the requirements of temperature and temperature. ideal pressure. For this reason, this study focused on reducing the temperature so that the air volume increases so that the pressure in the engine room increases. The air temperature requirement in the engine room is calculated according to the ideal gas equation such that the intake air temperature is 25.6oC compared to the existing condition of 37.968oC. This study was carried out by changing the height of the fins to the maximum limit of the tube size, but it still did not meet the needs, so the maximum height was chosen to increase the usable surface. In addition, changes in coolant velocity are made since the water velocity is proportional to the heat transfer energy to obtain a fin pattern that meets the -1070,488 Watt demand. The temperatures from the intercooler simulation results are then used for the entrance to the simulated engine room.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Intercooler, Tekanan, Suhu, Energi.
Subjects:	Q Science > QC Physics > QC320 Heat transfer T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Ipung Nur Wahyu Fadholi
Date Deposited:	01 Sep 2023 08:25
Last Modified:	01 Sep 2023 08:25
URI:	http://repository.its.ac.id/id/eprint/101933

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