Journals / Bitlis Eren Üniversitesi Fen Bilimleri Dergisi / 2020 / Cilt: 9 - Sayı: 1

Investigating the Effect of Geometrical and Dynamic Parameters on the Performance of Darrieus Turbines: A Numerical Optimization Approach via QBlade Algorithm

Geometrik ve Dinamik Parametrelerin Darrieus Türbin Performansı Üzerindeki Etkisinin Araştırılması: QBlade Algoritması ile Sayısal Optimizasyon

Pages
413–426
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Thisstudy is expected contribute site-dependent Darrieus turbine design works at different dimension and dynamicscales for both wind and hydrokinetic applications.

📌 3 Key Takeaways

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Objective & Hypothesis:Increasing energy demand, rising per capita energy use, growing climate problems and other detrimentalconsequences of energy and environmental issues have prompted scientists and engineers to conduct more studieson the technical feasibility and efficiency of renewable energy conversion systems.
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Key Findings & Data:Many experimental andcomputational studies have been provided on the performance of Darrieus turbines.
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Conclusion & Impact:Thisstudy is expected contribute site-dependent Darrieus turbine design works at different dimension and dynamicscales for both wind and hydrokinetic applications.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Increasing energy demand, rising per capita energy use, growing climate problems and other detrimentalconsequences of energy and environmental issues have prompted scientists and engineers to conduct more studieson the technical feasibility and efficiency of renewable energy conversion systems. Free flow (wind andhydrokinetic) turbines are one of the mostly investigated renewable energy technologies and Darrieus turbineshave an exceptional place especially for smaller scale and domestic applications. Many experimental andcomputational studies have been provided on the performance of Darrieus turbines. However, the number ofnumerical studies which are more time and cost effective than computational and experimental works are quitelimited in the literature. The main objective of this study is to analyze Darrieus turbines at different geometricaland dynamic configurations using numerical QBlade software. In this study, the effect of airfoil selection, numberof blades, chord length, solidity and helicity are analyzed in terms of delivering higher performance at straightbladed Darrieus turbines. It has been found that NACA 0020 profile performs better relative to other symmetricalblade sections in vertical axis turbines. Better performance and wider TSR range is obtained for three bladedturbines. Also, increasing chord lengths delivered maximum power at lower tip speed ratio (TSR) ranges. Thisstudy is expected contribute site-dependent Darrieus turbine design works at different dimension and dynamicscales for both wind and hydrokinetic applications.

Özet

Artan enerji talebi, kişi başına düşen enerji kullanımı, çevresel problemler ve bunlara bağlı diğer olumsuz sonuçlar bilim insanlarını ve mühendisleri yenilenebilir enerji sistemlerinin verimliliği konusunda daha fazla çalışma yapmaya sevk etmiştir. Serbest akışlı (rüzgâr ve hidrokinetik) türbinler, üzerinde en çok araştırma yapılan yenilenebilir enerji teknolojileri olup Darrieus türbinleri özellikle küçük ölçekli ve lokal uygulamalarda önemli bir yere sahiptir. Darrieus türbinlerinin performansı hakkında birçok deneysel ve hesaplamalı çalışma yapılmış olmasına rağmen, zaman ve maliyet açısından nispeten çok daha elverişli olan numerik çalışmaların sayısı oldukça sınırlıdır. Bu çalışmanın temel amacı, farklı geometrik ve dinamik konfigürasyonlara sahip Darrieus türbinlerinin QBlade yazılımı kullanılarak analiz edilmesidir. Mevcut çalışmada, düz kanatlı Darrieus türbinlerinden daha yüksek performans elde edilmesi amacı ile kanat profili, kanat sayısı, kord uzunluğu, solidite ve sarmallığın performansa etkisi analiz edilmiştir. Bu çalışmada NACA 0020 profilinin, dikey eksen türbinlerde diğer simetrik kanat kesitlerine nazaran daha iyi performans gösterdiği bulunmuştur. Üç kanatlı türbinlerin daha geniş TSR aralığında çalıştığı ve yüksek performans sergilediği tespit edilmiştir. Ayrıca, kord uzunluğu arttıkça maksimum güç katsayısına daha düşük uç hız oranında (TSR) ulaşıldığı tespit edilmiştir. Bu çalışmanın hem rüzgâr hem de hidrokinetik uygulamalar için farklı boyut ve dinamik ölçeklere sahip Darrieus türbini tasarımı çalışmalarına katkıda bulunması beklenmektedir.

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Cite This Article

MURATOĞLU, A., DEMİR, M. S. (2022). Investigating the Effect of Geometrical and Dynamic Parameters on the Performance of Darrieus Turbines: A Numerical Optimization Approach via QBlade Algorithm. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, Cilt: 9 - Sayı: 1, 413–426. https://ajindex.com/articles/466739

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