Dergiler / Sakarya University Journal of Science / 2026 / Volume: 23 Issue: 5

Metallographic Aspects Investigation of Penstock Materials in Hydroelectric Power Plants and Penstock Maintenance Methods

Gökhan Kahraman(MUNZUR ÜNİVERSİTESİ)0000-0002-8365-2447
Yahya Taşgın(MUNZUR ÜNİVERSİTESİ)0000-0002-0902-336X
Sayfa
—
Yayın Tarihi
2019-10-01
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

This study will help to ensure that all hydroelectric power plants operate smoothly in terms of penstock.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:Hydroelectric power plants are renewable energy sources and have little impact on the environment.
📊
Temel Bulgular & Veri:Therefore, it is one of the most preferred energy sources in the world.
💡
Sonuç & Katkı:This study will help to ensure that all hydroelectric power plants operate smoothly in terms of penstock.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Hydroelectric Power Plants · Penstock Pipe · Metallographic Survey

Abstract

Hydroelectric power plants are renewable energy sources and have little impact on the environment. Therefore, it is one of the most preferred energy sources in the world. In parallel with this situation, it is very important that the hydroelectric power plants are maintained, their failures are prevented or permanently removed. One of the most important parts of hydroelectric power plants is penstock pipes. Along with the snail part of the power plant, the penstock supplies the pressurized water to the turbine wheel for energy production. In the power plants that have been producing energy for many years, the maintenance and material properties of penstock are very important. In this study, one of the most important equipment of hydroelectric power plants, pressurized water pipes (penstock) and chemical components have been examined in macro and micro structure and their maintenance is investigated. In the metallographic study on the samples taken from two different regions of the penstock pipe; the perlitic structure, which has a homogeneous distribution into the ferritic structure forming the matrix, is determined and supported by analyzes. This study will help to ensure that all hydroelectric power plants operate smoothly in terms of penstock.

🔖

Bu Makaleye Atıf Yap

Kahraman, G., Taşgın, Y. (2019). Metallographic Aspects Investigation of Penstock Materials in Hydroelectric Power Plants and Penstock Maintenance Methods. Sakarya University Journal of Science, Volume: 23 Issue: 5. https://doi.org/10.16984/saufenbilder.532674

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (15)

  1. World Energy Councıl, 2016.
  2. U. Dorji, R. Ghomashchi, “Hydro turbine failure mechanisms,” Engineering Failure Analysis, vol. 44, pp. 136–147, 2014.
  3. M.K. Padhy, R.P. Saini, “A review on silt erosion in hydro turbines,” Renew Sustain Energy Rev, vol. 12, pp. 1975–1986, 2007.
  4. A. Adamkowski, “Case study: lapino power plant penstock failure,” J. Hydraul. Eng., Vol. 127 pp. 547–555, 2000.
  5. F. Kawamura, “Fracture toughness of long-term used SS41 and welding joint”, Master Thesis, Kagawa University, 2005.
  6. C.K. Sanathanan, “Accurate low order model for hydraulic turbine-penstock,” IEEE Trans Energy Convers, vol. 2 pp. 196-200, 1987.
  7. G.M. Lucas, J.I. Sarasua, J.A.S. Fernandez, J.R. Wilhelmi, “Power-frequency control of hydropower plants with long penstocks in isolated systems with wind generation,” Renewable Energy, vol. 83, pp. 245-255, 2015.
  8. G.M. Lucas, J.L.P. Diaz, M. Chazarra, J.L. Sarasua, G. Cavazzini, G. Pavesi, G. Ardizzon, “Risk of penstock fatigue in pumped-storage power plants operating with variable speed in pumping mode,” Renewable Energy, vol. 133, pp. 636-646, 2019.
  9. R. Kumar, S.K. Singal, “Penstock material selection in small hydropower plants using MADM methods,” Renewable and Sustainable Energy Reviews, vol. 52 pp. 240–255, 2015.
  10. F. Kawamura, M. Miura, R. Ebara, K. Yanase, “Material strength of long-term used penstock of a hydroelectric power plant,” Case Studies in Structural Engineering, vol. 6, pp. 103–114, 2016.
  11. A.S. Leon, L. Zhu, “A dimensional analysis for determining optimal discharge and penstock diameter in impulse and reaction water turbines,” Renewable Energy, vol. 71, pp. 609-615, 2014.
  12. K.V. Alexander, E.P. Giddens, “Optimum penstocks for low head microhydro schemes,” Renewable Energy, vol. 33, pp. 507–519, 2008.
  13. J.H. Bulloch, A.G. Callagy, “An detailed integrity assessment of a 25 MW hydro-electric power station penstock,” Engineering Failure Analysis, vol. 17, pp. 387–393, 2010.
  14. H. Başeşme, Hidroelektrik santraller ve Hidroelektrik santral tesisleri, 2003.
  15. U. Dorji, R. Ghomashchi, “Hydro turbine failure mechanisms,” Engineering Failure Analysis, vol. 44, pp. 136–147, 2014.