Kömürlü Termik Santrallerde Kazan Verimsizliğinin Seviyelendirilmiş Elektrik Maliyetine Etkisi Üzerine Bir İnceleme

Öz

Bu çalışmada, Afşin–Elbistan B Termik Santralinde tesisin olan SR EPOS (Energy Optimization System) sisteminden elde edilen veriler kullanılarak termo-ekonomik analiz gerçekleştirilmiştir. Tesisin seviyelendirilmiş elektrik maliyeti (SEM), üç farklı senaryo üzerinden hesaplanmış ve kazanın tasarım değerlerine dayalı olarak hesaplanan verim ile EPOS sisteminden elde edilen gerçek verilerle belirlenen verimler arasındaki farklar, üretici tarafından sağlanan referans verim ile karşılaştırılmıştır. Bu karşılaştırma sonucunda, verim farklılıklarının SEM üzerindeki etkisi analiz edilmiştir. Kazan verimindeki sapmadan kaynaklanan ve tesisin ekonomik ömrünün 20 yıl olduğu kabulüyle hesaplanan SEM farkın 100 milyon USD seviyelerine ulaşabildiğini göstermektedir.

Anahtar Kelimeler

• Termo-ekonomik analiz
• Seviyelendirilmiş elektrik maliyeti (LCOE-SEM)
• Enerji optimizasyon sistemi (EPOS)
• Kazan verimi
• Gerçek zamanlı performans analizi
• Termik santral ekonomisi

A Study on the Effect of Boiler Inefficiency on Levelized Electricity Cost in Coal-Fired Thermal Power Plants

Abstract

In this study, thermo-economic analysis was performed using data obtained from the SR EPOS (Energy Optimization System) system of the Afşin–Elbistan B Thermal Power Plant. The levelized electricity cost (LEC) of the plant was calculated over three different scenarios and the differences between the efficiency calculated based on the design values ​​of the boiler and the efficiencies determined by the actual data obtained from the EPOS system were compared with the reference efficiency provided by the manufacturer. As a result of this comparison, the effect of the efficiency differences on the LEC was analyzed. The LEC, which is calculated by assuming that the economic life of the plant is 20 years and caused by the deviation in the boiler efficiency, shows that the difference can reach 100 million USD.

Keywords

• Thermo-economic analysis
• Levelized cost of electricity (LCOE-SEM)
• Energy optimization system (EPOS)
• Boiler efficiency
• Real-time performance analysis
• Thermal power plant economy

Kaynakça

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