Use of Alternative Fluids in Very High-Power Transformers: Experimental and Numerical Thermal Studies

Autor: Ramazan Altay, Agustin Santisteban, Cristian Olmo, Carlos J. Renedo, Alfredo Ortiz Fernandez, Felix Ortiz, Fernando Delgado

Publikováno v: IEEE Access, Vol 8, Pp 207054-207062 (2020)

The very high-power transformer lifespan depends mainly on the temperature that cellulose insulation reaches during its operation. Traditionally, its cooling has been carried out using mineral oil as coolant. Nowadays, alternative ester-based liquids

Externí odkaz: https://doaj.org/article/7165dd41f0204688bcda73ede87a256e

100MVA Non-Uniform Heat Losses Study

Autor: Ramazan Altay, Pedro Jose Quintanilla, Alfredo Ortiz, Fernando Delgado, Ahmet Kerem Koseoglu

Publikováno v: 2022 9th International Conference on Condition Monitoring and Diagnosis (CMD).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae90a515fbc4f6474deb29176d321d07
https://doi.org/10.23919/cmd54214.2022.9991711

Performance analysis of natural, synthetic and mineral oil in a 100 MVA power transformer

Autor: Ramazan Altay, A.Kerem Koseoglu, Fernando Delgado, Alfredo Ortiz, Agustín Santisteban, Cristian Olmo, Carlos J. Renedo

Publikováno v: 3rd IEEE International Conference on Dielectrics (ICD), Valencia, 2020, 770-773
UCrea Repositorio Abierto de la Universidad de Cantabria
Universidad de Cantabria (UC)
2020 IEEE 3rd International Conference on Dielectrics (ICD)
International Conference on Dielectrics (ICD 2020

The power transformer lifespan depends on the dielectric capacity of its insulation system, mainly of the paper. Integrity of this material depends significantly on the cooling capacity of the oil used to cool it. Currently, ester-based fluids are be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fb3ecc2fab31b53db4178caef545586
http://hdl.handle.net/10902/21725

EXPERIMENTAL VERIFICATION OF THE FEASIBILITY OF THE CFD APPROACH IN AN AIR-KNIFE.

Autor: ALTAY, Ramazan¹ ramazan.yaman@atlas.edu.tr, YAMAN, Gulsen², YAMAN, Ramazan³

Publikováno v: Thermal Science. 2022 Special Issue, Vol. 26, pS727-S734. 8p.

VALIDATION OF COMPUTATIONAL FLUID DYNAMIC ANALYSIS OF NATURAL CONVECTION CONDITIONS FOR A RESIN DRY-TYPE TRANSFORMER WITH A CABIN.

Autor: YAMAN, Gulsen¹ yamangulsen@gmail.com, ALTAY, Ramazan², YAMAN, Ramazan³

Publikováno v: Thermal Science. 2019 Supplement, Vol. 23, pS23-S32. 10p.