ARIEF, DANDY (2025) ANALISIS PERHITUNGAN LAJU PERPINDAHAN PANAS DAN EFEKTIVITAS KONDENSOR DENGAN VARIASI TEKANAN VAKUM PADA PLTU. S1 thesis, Universitas Mercu Buana Jakarta.
|
Text (HAL COVER)
01 COVER.pdf Download (8MB) | Preview |
|
![[img]](https://repository.mercubuana.ac.id/style/images/fileicons/text.png) |
Text (BAB I)
02 BAB I.pdf Restricted to Registered users only Download (173kB) |
|
|
Text (BAB II)
03 BAB II.pdf Restricted to Registered users only Download (856kB) |
|
|
Text (BAB III)
04 BAB III.pdf Restricted to Registered users only Download (433kB) |
|
|
Text (BAB IV)
05 BAB IV.pdf Restricted to Registered users only Download (728kB) |
|
|
Text (BAB V)
06 BAB V.pdf Restricted to Registered users only Download (311kB) |
|
|
Text (DAFTAR PUSTAKA)
07 DAFTAR PUSTAKA.pdf Restricted to Registered users only Download (149kB) |
|
|
Text (LAMPIRAN)
08 LAMPIRAN.pdf Restricted to Registered users only Download (1MB) |
Abstract
The condenser is a vital component in the PLTU cycle that contributes significantly to losses and affects the performance of the plant. The output steam from the LP Turbine is flowed to the condenser to undergo a condensation process, namely a phase change from steam to condensate water. The condensate water is then reused as boiler feed water. Considering the important role of the condenser in the PLTU cycle, an analysis of the calculated heat transfer rate and condenser effectiveness with vacuum pressure variation is required. The LMTD method is used to calculate the heat transfer rate and the NTU-Effectiveness method is used to calculate the condenser effectiveness. The results of both methods are used as evaluation parameters for condenser performance. The analysis results show that the highest heat transfer rate of 395.52 MW occurs at a vacuum pressure of 699.27 mmHg (0.08096 bar), while the lowest value is 330.48 MW at a vacuum pressure of 702.97 mmHg (0.07603 bar). The highest condenser effectiveness reaches 99.18% and the lowest is 98.84% at the same vacuum pressure. The higher the vacuum pressure (gauge) in the condenser, the more unstable the condenser performance will be, such as reducing the heat transfer rate and effectiveness, resulting in a less than ideal heat transfer process. Keywords: Condenser Heat Transfer Rate, Condenser Effectiveness, Condenser Vacuum Pressure Kondensor merupakan salah satu komponen vital dalam siklus PLTU yang berkontribusi besar terhadap terjadinya losses dan mempengaruhi kinerja pembangkit. Uap keluaran dari LP Turbin dialirkan ke kondensor untuk mengalami proses kondensasi, yaitu perubahan fasa dari uap jadi air kondensat. Air kondensat ini selanjutnya dimanfaatkan kembali untuk air pengisi boiler. Mengingat peran penting kondensor dalam siklus PLTU, diperlukan analisis perhitungan laju perpindahan panas dan efektivitas kondensor dengan variasi tekanan vakum. Metode LMTD digunakan untuk menghitung laju perpindahan panas dan metode NTU-Effectiveness digunakan untuk menghitung efektivitas kondensor. Hasil dari kedua metode tersebut digunakan sebagai parameter evaluasi terhadap kinerja kondensor. Hasil analisis menunjukkan bahwa laju perpindahan panas paling tinggi sebesar 395,52 MW terjadi pada tekanan vakum 699,27 mmHg (0,08096 bar), sedangkan nilai paling rendah sebesar 330,48 MW pada tekanan vakum 702,97 mmHg (0,07603 bar). Efektivitas kondensor paling tinggi mencapai 99,18% dan paling rendah 98,84% pada tekanan vakum yang sama. Semakin tinggi nilai tekanan vakum (gauge) dalam kondensor maka akan mempengaruhi ketidakstabilan kinerja kondensor seperti berkurangnya laju perpindahan panas dan efektivitas yang menyebabkan proses perpindahan panas tidak ideal. Kata Kunci: Laju Perpindahan Panas Kondensor, Efektivitas Kondensor, Tekanan Vakum Kondensor.
Actions (login required)
 |
View Item |
