scholarly journals Promising Direction of Perfection of the Utilization Combine Cycle Gas Turbine Units

2016 ◽  
Vol 91 ◽  
pp. 01004 ◽  
Author(s):  
Albina I. Gabdullina ◽  
Nikolay N. Galashov ◽  
Svyatoslav A. Tsibulskiy ◽  
Denis V. Melnikov ◽  
Ilya A. Asanov ◽  
...  
2021 ◽  
Author(s):  
Pugalenthi Nanadagopal ◽  
Animesh Pandey ◽  
Manjunath More ◽  
Pertik Kamboj

Abstract In Gas turbine-based combined cycle power plant market, the customer conducts an economic evaluation of competitive products to decide their buying option. There are different methods to calculate the economics of a power plant like Levelized cost of electricity (LCOE), Net present value (NPV) and payback period. LCOE methodology is commonly used for lifecycle cost analyses for combine cycle power plant that covers cost details of the plant and plant performance over the complete lifetime of a power plant from construction to retiring. Typically, it includes a combine cycle power plant ownership costs (Total plant cost and operating & maintenance cost) and combine cycle power output and efficiency. This LCOE method is helpful to compare power generation system that use similar technologies. This paper encompasses the LCOE calculation method, assumptions & approach to analyze the impact of key parameters of the electrical generation cost. They key parameters includes combine cycle output, combine cycle efficiency, fuel cost, annual operating hours, capital charge factor, annual operating hours, power plant life, discount rate, nominal escalation rate, operating & maintenance cost. This paper analyses result will provide insights to the customer & Gas turbine-based OEM (Own Equipment Manufacturing) companies to focus on different area/parameters to reduce the unit cost of generating electricity.


2021 ◽  
Author(s):  
Pugalenthi Nanadagopal ◽  
Matthias Duerr ◽  
Ole Fahrendorf ◽  
Dan Haid ◽  
Hubert Paprotna

Abstract Gas turbine-based combine cycle (GT-CC) economic evaluation is very important to bring together own equipment manufacturing companies (OEM’s) and power plant owners. The fuel cost & cost of electricity play the major role in economic evaluation which drives the decision during the bidding. The first portion of this paper encompasses the different cost analysis methods like Net Present Value (NPV), Internal Rate of Return (IRR), Levelized Cost of Electricity (LCOE) and Pay Back Period (PBP) for different fuel costs and electricity prices. The second portion of the paper covers the delta cost benefits due to improvement in the combined cycle degradation GT-CC operators or customers are looking for the opportunities to control and minimize the degradation of the gas turbine power plant which directly impact the profitability. The customer or operator always monitor the plant performance to understand the life cost impact on performance degradation. This paper will help the customers & GT-CC OEM companies to focus on different area to reduce the unit cost of generating electricity, decide to move forward with the project during the proposal and improve the business at various regions based on fuel cost and global geographical political situations. Also, the reader can digest the benefits of improved degradation curve over the normal curve.


ROTASI ◽  
2016 ◽  
Vol 18 (4) ◽  
pp. 106
Author(s):  
Eflita Yohana ◽  
Rigo Muhammad Herriza

Turbin Gas Generator umumnya mengalami perubahan beban untuk memenuhi kebutuhan daya listrik yang berubah sewaktu-waktu, sesuai dengan permintaan konsumen. Beban dari turbin gas yang berubah-ubah akan berpengaruh terhadap kinerja dari tiap-tiap komponennya antara lain kompresor, combustion chamber, dan turbin gas. Dalam merespon perubahan beban yang terjadi, maka suplai bahan bakar, udara pembakaran, serta gas buang yang akan di proses di HRSG untuk mengoperasikan turbin uap ikut berubah pula. Hal tersebut akan berpengaruh pada kinerja dan efisiensi dari gas turbin tersebut. Dengan mengetahui efisiensi siklus pada tiap beban maka diperoleh grafik efisiensi siklus pada turbin gas generator sehingga diketahui perbedaan nilai efisiensi siklus pada tiap variasi pembebanan. Analisa efisiensi siklus Gas Turbin Generator dilakukan pada Pembangkit Listrik Tenaga Gas dan Uap melalui perhitungan efisiensi kompresor, dan efisiensi turbin gas, tanpa memperhitungkan efisiensi yang terjadi di ruang bakar. Selain itu analisa efisiensi gas turbin generator juga menghasilkan nilai efisiensi dari tiap pembebanan yang terjadi di turbin gas generator Pembangkit Listrik Tenaga Gas dan Uap. Data temperatur dan tekanan yang diperoleh telah tercatat melalui layanan sistem operasi interface. Dari hasil perhitungan pada turbin gas Pembangkit Listrik Tenaga Gas dan Uap diperoleh nilai efisiensi siklus turbin gas generator yang berbahan bakar gas alam (metan) sebesar 31.28% pada pembenanan 23 MW, 38.71% pada pembebanan 27MW, dan 45.56% pada pembebanan 33MW. Dari hasil perhitungan efisiensi pada 3 proses pembebanan diketahui bahwa semakin besar pembebanan dilakukan maka efisiensi yang dihasilkan mesin semakin tinggi


Author(s):  
Nikolay Georgievich Rodionov ◽  
Vitaly Vladimirovich Korotkov ◽  
Evgeny Ivanovich Tomashov

The article studies the possibility of application combined-cycle gas turbine plants (CCGT) in the Russian Navy. A review of numerous publications allows to infer that the essential increase of ship power plant (SPP) efficiency (10-15%) can be reached by using combine-cycle gas turbine plants. It should be noted that the greatest effect on CCGT performance makes the level of technological sophistication of gas-turbine units (GTU), in particular, the gas temperature achieved before the turbine. The possibility of creating marine CCGT in Russia is being explored. The article contains examples of the use of GTUs on board foreign ships. Close attention is drawn to the advanced techniques used to increase CCGT efficiency. There have been presented calculations of the approved scheme of CCGT, which demonstrate the advantages of using CCGTs.


1906 ◽  
Vol 61 (1569supp) ◽  
pp. 25137-25138
Keyword(s):  

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