ANALISA CLEANLINESS FACTOR SEBAGAI NILAI PERFORMASI KONDENSER UNIT 4 PT. INDONESIA POWER UP SURALAYA

2017 ◽  
Vol 1 (2) ◽  
pp. 36
Author(s):  
Ghusrina Prihandini ◽  
Muhammad Tri Sinarta
Keyword(s):  
Surface Condenser ◽  
Cleanliness Factor

PT. Indonesia Power UP Suralaya merupakan salah satu perusahaan yang bergerak dalam bidang ketenaga listrikan yang melayani kebutuhan listrik hingga seputaran daerah Jawa, Bali, dan Madura. Dengan kapasitas 3400 MW PT. Indonesia Power UP Suralaya merupakan salah satu PLTU terbesar dikawasan Asia Tenggara. Kondenser, salah satu alat utama pada proses di pembangkit listrik tenaga uap (PLTU). Kondenser itu sendiri merupakan alat yang digunakan untuk merubah uap yang digunakan untuk menggerakan turbin menjadi air yang akan digunakan kembali pada proses PLTU. Kondenser yang digunakan pada PLTU Suralaya adalah tipe surface condenser. Air pendingin yang digunakan dalam kondenser pada PLTU suralaya adalah air laut dengan menggunakan sistem one through. Cleanliness factor merupakan faktor tingkat kebersihan kondenser, cleanliness factor menjadi sangat penting untuk menunjukkan seberapa besar performance dari kondenser tersebut jika semakin besar nilai cleanliness factor yang dihasilkan maka semakin besar pula kefektifan daripada kondenser tersebut. Perbandingan nilai cleanliness factor yang dihasilkan pada tanggal 2 April 2016 adalah sebesar 91,98 % dan pada tanggal 3 April 2016 menghasilkan nilai cleanliness factor sebesar 81,18%. Performa kondenser pada unit 4 masih dalam performa yang cukup baik.

Technical Challenges of Retubing the E´lectricite´ de France (EDF) Belleville Unit 2

2011 ◽  
Author(s):  
Merwin W. Jones ◽  
Kim M. Massey ◽  
David Voisin
Keyword(s):  
Leak Test ◽  
Brass Alloy ◽  
Steel Tubes ◽  
Laser Alignment ◽  
Alignment System ◽  
Leak Testing ◽  
Nuclear Station ◽  
Surface Condenser ◽  
Rolling Torque ◽  
Station Unit

This paper describes the numerous challenges involved in the partial retubing of the Belleville Nuclear Station Unit 2 steam surface condenser using 64,242 tubes. Specific challenges of the project included retubing with both duplex stainless steel tubes and with brass alloy tubes, analyzing the risk of flow induced tube vibration and designing a staking system to prevent such vibration, and, replacement of six tubesheets. The tubesheet stresses were analyzed using a beam strip analysis and ANSYS, and new tubesheets were reverse engineered from original drawings. Tubesheets were aligned to the support plate holes using a newly developed laser alignment system. Prior to the retubing, extensive mockup tests were performed to optimize the rolling torque, and to determine rolling parameters that limit the work-hardening of the brass tubes. Testing also included leak testing the mockup joints with a small pressure vessel and then performing a helium leak test of the pressurized tube joints. Tests were performed with both smooth and serrated holes.

Design of Fast and Reliable Steam Surface Condensers

2020 ◽  
Author(s):  
Ranga Nadig
Keyword(s):  
Steam Turbine ◽  
Gas Turbines ◽  
Power Plants ◽  
Combined Cycle ◽  
Design Features ◽  
Surface Condenser ◽  
Combined Cycle Plant ◽  
Startup Time ◽  
On Line ◽  
To Come

Abstract Power plants operating in cyclic mode, standby mode or as back up to solar and wind generating assets are required to come on line on short notice. Simple cycle power plants employing gas turbines are being designed to come on line within 10–15 minutes. Combined cycle plants with heat recovery steam generators and steam turbines take longer to come on line. The components of a combined cycle plant, such as the HRSG, steam turbine, steam surface condenser, cooling tower, circulating water pumps and condensate pumps, are being designed to operate in unison and come on line expeditiously. Major components, such as the HRSG, steam turbine and associated steam piping, dictate how fast the combined cycle plant can come on line. The temperature ramp rates are the prime drivers that govern the startup time. Steam surface condenser and associated auxiliaries impact the startup time to a lesser extent. This paper discusses the design features that could be included in the steam surface condenser and associated auxiliaries to permit quick startup and reliable operation. Additional design features that could be implemented to withstand the demanding needs of cyclic operation are highlighted.

Recommended Practices for the Development of an Effective Steam Surface Condenser Maintenance Regime; Including Suggested Maintenance Solutions and Design Modifications That Can Improve Condenser Performance and Reliability

2012 ◽  
Author(s):  
Darren M. Nightingale
Keyword(s):  
Failure Modes ◽  
Operating Costs ◽  
Testing Methods ◽  
Component Failure ◽  
Routine Testing ◽  
Proper Understanding ◽  
Surface Condenser ◽  
Reference Implementation ◽  
Main Components

A detailed & proper understanding of the main components that comprise a Steam Surface Condenser is absolutely essential when designing an effective maintenance regime. This Paper provides a breakdown for each of the main components, including typical ancillary items, which should be incorporated into visual inspections, and routine testing, when developing an effective maintenance regime for Steam Surface Condensers. Topics cover recommended inspection criteria for the main and ancillary components as well as proposed testing methods. Examples of known component failure modes, suggested repairs, replacements, modifications & upgrades are also included for reference. Implementation of an effective maintenance regime can help to ensure design performance is maintained. Often, it can even lead to improvements in unit availability and overall long term reliability; which in turn can result in tangible reductions in operating costs.

Large Steam Surface Condenser Tube-Sheet Design

1972 ◽  
Vol 75 (642) ◽  
pp. 1034-1040
Author(s):  
Michizo MIYOSHI ◽  
Kazuyasu SAKURAI
Keyword(s):  
Tube Sheet ◽  
Condenser Tube ◽  
Surface Condenser

Improving surface condenser performance

1951 ◽  
Vol 70 (1) ◽  
pp. 038-038
Author(s):  
J. G. Dobson
Keyword(s):  
Surface Condenser
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