Power Plant
The Scientific Journal of "Power Plant" is a collection of scientific works by lecturers, researchers, and practitioners in the field of Mechanical Engineering that have been published since September 2012. This journal is the result of scientific work, research in the fields of Energy, Materials and Energy Conversion to contribute in writing scientific which will be useful for the application of science and technology, especially in the field of Mechanical Engineering.
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<![CDATA[Analisa Pengaruh Jumlah Pengoperasian CWP Terhadap Performa Kondensor PLTU Rembang ]]>
<![CDATA[Andika Widya Pramono]]>;
<![CDATA[Gita Puspa Artiani]]>;
<![CDATA[Alan Laksono]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.790
<![CDATA[Heat exchanger is a device used to transfer heat from one fluid to another fluid. One in Rembang heat exchanger is a condenser. The condenser serves to condense low pressure steam turbine output by using sea water as coolant fluid. The condenser is a turbine auxiliary equipment which, if having problems then it will result in generation efficiency. In the design of the contractor takes 4 CWP to supply cooling water condenser, but the reality on the ground, only 3 CWP operated. Therefore it is necessary to know how the effects of these operations on the performance of the condenser. The method of analysis is done by calculating the performance of the condenser is based on the current operating parameters of the performance test. By knowing the conditions and the actual performance of the condenser, it will be able to increase plant efficiency.]]>
<![CDATA[Machining Untuk Mengatasi Ovality Pada Cylinder Transition Turbin Gas MW701D Di UP Gresik ]]>
<![CDATA[Arief Suardi Nur Chairat]]>;
<![CDATA[Mahmudi Mahmudi]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.793
<![CDATA[In the gas turbine will function cylinder transition is important, therefore, the need for a replacement part is needed. At this time, the condition of the cylinder transition caused a lot of experience working padadaerah keovalan high temperature so that deformation of the material merupakanpenyebab keovalan.Akibat keovalan the transition cylinder assembly process between basketball combustors and transition piece cylinder connected with the cylinder transition becomes difficult and takes a relatively longer and yield less than the maximum. Furthermore, the process of turning cylinder oval transition so as to re-round, this process requires a cylinder that has been available in the warehouse and use the Gresik Power Unit 1 set lathe which has existed in the workshop Maintenance Service Unit of the Eastern Region and the measuring instrument. Turning is done through the same transition smallest diameter cylinder with a diameter transition piece (Ø 335 mm) After the machining process is done the testing process transition cylinder machining results, the tests performed, among others, hardness test, and penetrant testing test aims to determine whether a decline in the quality of material , and make sure no material defects occur after the machining process. Reduction of the maximum allowable thickness is 3.2 mm atau30% recommendation from manual book.]]>
<![CDATA[Pengaruh Overhaul Terhadap Performa Sistem Pelumasan Air Heater ]]>
<![CDATA[Eko Sulistyo]]>;
<![CDATA[M. Arif Mintorogo]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.795
<![CDATA[In every operation, every piece of equipment a Steam Power (power plant) has a very important role to support the continuity of the process of production of electric power. Reliability and resilience of an equipment in a generating unit is the responsibility of all employees are encouraged that work in the company. At one plant often found damage during overhaul and the unit is operating. Air Preheater is one such example, which often arise various problems with age operates. The pressure drop Lube Oil Pump into a new problem in the Air Preheater, the impact of these problems resulted in Air Preheater can not operate optimally, and the impact of the worst is a unit trip (shutdown), which means the unit stops to produce electricity because of the disruption in one engine plant, of course, it will cause harm to the company. Experience analysis, and manual book is a guide to solving problems every time a unit of power generation, as well as the precision and patience is needed to see clearly how the problem occurred.]]>
<![CDATA[Optimalisasi Acid Cleaning Pada Cell Generator Chlorination Plant Dengan Menggunakan Acuan Tegangan ]]>
<![CDATA[Ammar Asof]]>;
<![CDATA[Nurmiati Pasra]]>;
<![CDATA[Gilang Yuri Wibowo]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.796
<![CDATA[Sea water contains a lot of marine life. If the growth is not inhibited marine life, it can be attached to the installation path (biofouling). Later, as a result of this biofouling will reduce the efficiency of installations through which sea water tersebu t and will add to the cost of production units. Chemical liquid sodium hypochlorite (NaOCl) produced by chlorination plant breeding serves as a barrier to marine organisms. This fluid is produced in the chlorine generator cell through a process of electrolysis of seawater. In fact, electrolysis of sea water also produce side reactions. Namely the deposition of minerals such as magnesium (Mg) and calcium (Ca). As a result, the cell voltage chlorine generator will increase in the use of the same current. Therefore, it is necessary that the process of cleaning acid cell kembalibersih chlorine generator. Reference implementation of the process of cleaning acid that is based on the operating time and based on the voltage. Commissioning of the data, has been conducted several times a dry acid process based on the operating time of 250 H / ± 10 days. But the acid cleaning process is inefficient and ineffective. Therefore, the new reference is made in the implementation process of cleaning acid, wherein the voltage value menjad iacuannya. Several advantages, including the total cost of implementing the dry acid in cycle 1 (one) month more efficient, improve the efficiency and effectiveness of cleaning acid and time flexibility in the implementation process of cleaning acid.]]>
<![CDATA[Analisa Water Hammer Pada Pipa Sirkulasi Condesate Extraction PUMP PT PJB UBJOM PLTU Indramayu ]]>
<![CDATA[Harun Al Rosyid]]>;
<![CDATA[Indah Handayasari]]>;
<![CDATA[Sugeng Tri Hariyanto]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.799
<![CDATA[System piping network is very important in supporting indramayu production plant with an installed capacity of 3 x 330 MW. Where the water from the condenser flowed into deaerator located on the 3rd floor requires a pump called condesate extraction pump (CEP). Problems arising from design errors and material cause water hammer in the pipes CEP circulation. Water hammer can interfere with the performance of condesat extraction pump (CEP) because it can damage the pump circulation pipe structure with specified intervals. For that this research was conducted in order to minimize the impact of water hammer condesate circulation pipe extraction pump (CEP) by installing gas accumulator. Then will be used as a more detailed analysis of section Enjiniring SO Indramayu power plant turbines in order to make the system more reliable water condesate in operation. The research is focused on solving the problem of water hammer in the pipes condesate circulation extraction pump (CEP). This study was conducted based on a guidebook, P & ID (picture), field surveys and other supporting literature. In order to get the research is real and can be applied in the future.]]>
<![CDATA[Analisa Penurunan Vakum Kondesor Tipe Permukaan PLTGU Grati ]]>
<![CDATA[Jasmid Edy]]>;
<![CDATA[Erlina Erlina]]>;
<![CDATA[Anuri Anuri]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.801
<![CDATA[Loss of heat from the steam cycle power plants are mostly due to the heat removed through the condenser. condenser serves to change the output steam turbine (exhaust steam) into a condensate water through the process of heat transfer between steam and cooling water. Grati PLTGU condenser-type surface (surface condenser) with cooling in the form of sea water as much as 46.070 m3 / h decreased vacuum reaches 665 mmHg, whereas the design of the level of vacuum in the condenser PLTGU RoW can reach 703 mmHg at the load of 160 MW. The analysis shows that, keavakuman decline occurred because the RoW PLTGU condenser cooling water capacity of less as a result of the increase in head loss at the inlet tunnel and the rising sea temperature reaches 330C which fluctuates due to the influence of the season and climate. However, it is also the case of over-heat duty, which may be due to damage to the components of the turbine blade and seal so that the steam turbine output energy is still quite large, it is indicated by naikknya LMTD which reached 94% .Penurunan PLTGU Grati condenser vacuum caused losses large enough for the company, where any reduction of 10 mmHg vacuum caused an economic loss of 10 billion rupiah per year. As a follow up then, treated steps to resolve the issue of which is necessary setrategi better maintenance of the condenser and the cooling system so that the equipment can function optimally, as well as replacement in perodik on turbine components that history could potentially damage before the maintenance period Major Inspection Blade Row hereinafter that the Low Pressure Turbine Blades Stationary and Seal Strip, because the maintenance cycle is long enough (36000 hours) so that steam turbine efficiency is maintained.]]>
<![CDATA[Analisa Pengaruh Plugging Evaporator Terhadap Performance Desalination Plant Unit 2 PLTGU Gresik ]]>
<![CDATA[Prayudi Prayudi]]>;
<![CDATA[Retno Aita Diantari]]>;
<![CDATA[Sofian Dwi Susilo]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.804
<![CDATA[Analysis of Effect of Plugging Evaporator Against Performance Desalination Plant Unit 2 PLTGU Gresik is the analysis that discusses the effect of plugging tubes evaporator on the performance of Desaliantion Plant Unit 2 Type MSF-Once Through in PLTGU Gresik by calculating heat transfer in the evaporator and tubes Condenser, in which the calculation includes calculation before plugging the rate of heat transfer, heat transfer rate after plugging and loss of thermal efficiency at the desalination plant due to the effect of plugging the evaporator. After calculating heat transfer occurs, then analyze the results of the calculation of how much influence the evaporator tubes plugging of the desalination plant performance. Where the results are compared with the theoretical calculations of data - data that is in the specification Desaliantion Plant Unit 2 PLTGU Gresik type MSF-Once Through, whether appropriate or not then draw conclusions from such comparisons.]]>
<![CDATA[Analisis Penurunan Tekanan Hp Drum HRSGDI PLTGU Grati Setelah Exhaust Damper Close ]]>
<![CDATA[Roswati Nurhasanah]]>;
<![CDATA[Puri Hariadi]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.807
<![CDATA[Long or short time in PLTGU GRATI HSRG operate depending on the conditions of pressure HP Drum. These pressures affect the waiting time ranges for each stage of the opening of the exhaust damper. If during the stand-by pressure HP Drum quickly run up to the pressure of <5 kg / cm2 then to operate it back it took a long time because the status has changed into a Cold. In order for the operation of the HRSG does not require a long time start-up should be done when the pressure is> 15 kg / cm2 more precisely the conditions Hot. Based on the observation chart ONLINE TEMP known cause of the pressure drop HP Drum very drastic happens during the process of the HRSG is shut down simultaneously with the circulation of HP BCP for 30 minutes after closing Exhaust Damper. From the calculation of the amount of energy lost (q loss) amounted to 1122.6 kW disistem and almost proportional to the amount of energy out of the system through the HP economizer amounted to 1328.2 kW net of energy absorption (q save) from HP Evaporator.]]>
<![CDATA[Kegagalan Fungsi Safety Valve LP STEAM DRUM HRSG 1.1 Muara Karang ]]>
<![CDATA[Sahlan Sahlan]]>;
<![CDATA[Irvan Buchari S. Taman]]>;
<![CDATA[Rian Fauzi Ashidiq]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.809
<![CDATA[PJB UP Muara Karang there are companies producing electrical energy, and use the HRSG (Heat Recovery Steam Generator) as supporting the production process. HRSG operating has the potential danger of explosion. Peroperasi HRSG so safely and reliably, it is one of the tools used is a safety valve. The main objective is the safety valve to ensure personal and equipment operation are protected from excess pressure conditions (over pressure). Safety valve designed to prevent accidents by removing excess pressure that occurs during the interruption process or system failure. Seat is part of the valve stable / dwell in safety valve. Disc are no moving parts, serving as a flow controller. Disc will move upwards so as to provide more space so that fluid can flow, move down when closing and pressing the seat tightly. When the spindle, where the disc is attached, is not working properly, or jammed, it can be said safety valve is damaged or malfunctioning. From the data obtained, it was found that the corrosion is the main cause of the safety valve is malfunctioning. Causes of corrosion can be due to factors metallurgy of the material itself or from the surrounding environment. But the condition of the corrosion can be minimized by carrying out routine maintenance in accordance with the standards of care of the safety valve.]]>
<![CDATA[Kajian Kelayakan Penambahan Fuel Gas Heatergas Turbin Tipe M701D Untuk Meningkatkan Effisiensi PLTGU Grati ]]>
<![CDATA[Vendy Antono]]>;
<![CDATA[Retno Aita Diantari]]>;
<![CDATA[Yudi Kriswanto]]>
<![CDATA[ JURNAL POWERPLANT Vol 3 No 1 (2015): JURNAL POWER PLANT ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/powerplant.v3i1.811
<![CDATA[PT Indonesia Power UBP Perak RoW have six gas turbines with a capacity of 100 MW each in which the fuel used is natural gas. One of the things that is very considered in the generation of electricity is the efficiency of an equipment, the observation that we encounter in the gas turbine efficiency is still relatively low, wasting fuel and have high production costs. To overcome this, the existing power plant should need to improve the efficiency of the total system that will reduce fuel consumption and production costs. In this case, one way to improve the efficiency of gas turbine type M701 D by adding a fuel gas heater (FGH) to absorb most of the heat in the exhaust (waste heat) through the Rotor Cooling Water (RCA) utilized to heat the fuel before entering into the gas turbine, without reducing the functionality of the cooling system of the gas turbine is even improve the functioning of the RCA itself, it aims to minimize waste heat are dumped into the atmosphere is not too large so that the efficiency of the system at the Gas Turbine increased overall, lower fuel consumption so that the production cost becomes less. Having done a comparison of calculation before and after FGH fitted with a variety of load Gas Turbine in getting power output increase by 1.11% - 1.37% and the efficiency of gas turbines rose by 0.25% - 0.39% and a decrease in heat rate ranging between 0.8% - 1.47%.]]>
