thermodinamika dalam vakum
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8/9/2019 thermodinamika dalam vakum
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SUMMARY
ANALISIS PENGARUH KEVAKUMAN TERHADAP LAJU PERPINDAHAN
PANAS DAN EFFEKTIVITAS KONDENSOR PADA PLTU UNIT 4 PT. PJB
UP. GRESIK
INFLUENCE ANALYSIS OF VACUUM TO HEAT TRANSFER RATE AND EFFECTIVENESS CONDENSOR AT
PLTU UNIT 4 PT PJB UP. GRESIK
Created by FITRIANI, NAJELA
Subject : Transmisi panas
Subject Alt : Condensers (steam) Heat--transmission
Keyword : : Kondensor;Laju Perpindahan Panas;Effektivitas
Description :Tingkat kevakuman kondensor perlu dijaga tetap rendah, dikarenakan semakin vakum tekanan di dalam kondensor,
kalor yang dilepas oleh kondensor akan semakin rendah. Apabila kalor yang dilepas kondensor semakin kecil
mengakibatkan kerja netto akan semakin besar. Mengetahui peran kondensor yang penting bagi efisiensi siklus, maka
perlu dilakukan analisis pengaruh kevakuman kondensor pada PLTU Unit 4. Tingkat kevakuman kondensor
mempengaruhi laju perpindahan panas yang merupakan kalor lepas kondensor. Dengan mengetahui laju perpindahan
panas kondensor, dapat diketahui pula effektivitas kondensor.
Data yang diambil dalam tugas akhir ini adalah data spesifikasi dan data rata-rata kondisi aktual kondensor selama lima
bulan. Sedangkan metode yang digunakan untuk meng-hitung laju perpindahan panas dan effektifitas adalah dengan Log
Mean Temperature Different dan Number of Transfer Unit. Dari hasil perhitungan data spesifikasi, diketahui bahwa laju
perpindahan panas maksimum dengan tekanan vakum 0.086676 bar adalah 246,0046 MW dan effektifitas0,991676317%,. Sedangkan data aktual menunjukkan tingkat kevakuman kondensor yang optimal adalah ketika tekanan
vakumnya 0.103537839 bar, dengan laju perpindahan panas sebesar 185.32886 MW dan effektivitas 0.9856%.
Description Alt:
Condensor vacuum is needed to be preserved in settled low, because the more vacuum a pressure in a condensor is, the
lower the heat that leaves the condenser. When the heat that leaves condenser is lower, it will cause the net of works
higher. Knowing the importance of condenser in cycle efficiency, then there is a need to do influence analysis of
condenser vacuum at PLTU Unit 4. The rate of condenser vacuum influences the heat-transfer rate which constitutes
heat leaving the condenser. By knowing the condenser heat transfer-rate, the effectiveness of condenser could also be
figured.
In this final project, data taken are the data of specification design and the average of actual condition condenser for five
months. Whereas, the method used in this calculation of the heat transfer-rate and effectiveness is Log Mean
Temperature Difference and Number of Transfer Unit Method. The result of specification design calculation with the
maximum heat transfer-rate of 0,086676 bar vacuum pressure is 246,0046 MW and the effectiveness is 0,991676317%.
In the other side, from the calculation of the actual condition condenser, the optimum condition indicate when the
vacuum pressure is 0,103537839 bar, with the heat transfer rate is 185,32886 MW and effectiveness is 0,9856%.
Contributor : Ir. Joko Sarsetiyanto,MT
Date Create: 20/07/2013
Type : Text
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8/9/2019 thermodinamika dalam vakum
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Format : PDF
Language : Indonesian
Identifier : ITS-NonDegree-21002140000597
Collection : 21002140000597
Call Number : RSM 621.197 Fit a
Source : Non Degree of Mechanical Engineering RSM 621.197 Fit a, 2014
COverage : ITS Community
Right : Copyright @2013 by ITS Library. This publication is protected by copyright and per obtainedfrom the ITS Library prior to any prohibited reproduction, storage in a re transmission in any formor by any means, electronic, mechanical, photocopying, reco For information regardingpermission(s), write to ITS Library
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