DWI, NOVAN RIONALDI (2019) PEMELIHARAAN SYSTEM PENDINGIN AIR TAWAR MESIN INDUK DI KAPAL KM. HIJAU SEJUK PT. SALAM PASIFIC INDONESIA LINES. KARYA TULIS.
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Abstract
Fresh water cooling system is one of support of the main propulsion system of a ship, where the function of the system is nothing but to cool the main engine so that the engine can run normally. In this paper, the object of writing using a closed cooling system. The following working principle Fresh water cooling system: 1 When the machine is turned on, the fresh water flows from the cooling expantion tank with fresh water using centrifugal pumps to the main engine. 2 If the cooling fresh water temperature has not reached 80 ° C the thermostat valve to the cooler remains closed, while the valve directly to the main engine remains open. 3 If the cooling fresh water temperature reaches 80 ° C the thermostat valve leading to the open cooler cooled by sea water, then drained to the main engine. 4 sea water pumps run towards the cooler to cool the fresh water. In this case the seawater pump is assumed to be a failure. So it is not necessary analysis. Anythings that need care in order to remain the main engine cooling system is as follows: 1 Water Treatment 2 Care pump 3 Maintenance sieve 4 Treatment pipes 5 Care cooler 6 Maintenance expansion tank 7 Water Treatment charge intercooler 8 Maintenance fresh water heater On the main engine cooling installation consists of several components. In order for the main engine cooling it is necessary to keep normal pH treatment. To determine the levels of pH, the cooling medium can be done with litmus paper, and dipped into the cooling water sample analysis will notice the color change arising statutes diinstruction existing color book. PH levels is best for cooling is between 9 s / d 11, maintains the pH level by mixing water treatment such as DEWT - NC according to the specified ratio.
| Item Type: | Article |
|---|---|
| Additional Information: | 125020068 |
| Subjects: | Teknika |
| Divisions: | Program Studi > D3-Teknika |
| Depositing User: | AMNI Perpustakaan Semarang |
| Date Deposited: | 24 Feb 2020 07:15 |
| Last Modified: | 24 Feb 2020 07:15 |
| URI: | http://repository.stimart-amni.ac.id/id/eprint/1524 |
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