Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Christina G. Georgantopoulou"'
Publikováno v:
Thermal Science, Vol 25, Iss 6 Part A, Pp 4383-4393 (2021)
This paper investigates the analysis of natural-convection heat enhancement in an inclined square enclosure when filled with water-based nanofluids with left edge wall undergoing heating with consistent heat flux while the right edge wall being cold
Autor:
Y. H. Ali, Christina G. Georgantopoulou, Iftikhar Ahmad, Ahmed M. Abdelrhman, Fethma M. Nor, Denni Kurniawan, Lim Ying
Publikováno v:
1ST INTERNATIONAL SEMINAR ON ADVANCES IN METALLURGY AND MATERIALS (i-SENAMM 2019).
As an important part of rotating machinery, bearing state affects the whole effectiveness and stability of machine components. Recently, many condition monitoring techniques have been developed for bearing fault detection and diagnosis to avoid malfu
Publikováno v:
Case Studies in Thermal Engineering, Vol 28, Iss, Pp 101670-(2021)
Two-dimensional numerical analysis is carried out in a square cavity with extended surface with nanofluid foe heat transfer enhancement under natural convection in a laminar flow regime. Pure water, ethylene glycol (EG), Water/EG mixture (20%, 40%, 6
Autor:
G Georgantopoulos, Iftikhar Ahmad, Ahmed M. Abdelrhman, Nikolaos S. Vasilikos, Christina G. Georgantopoulou, E Khalifa
Publikováno v:
Conference Proceedings of ICMET Oman.
Petroleum and marine technology applications and infrastructures consist of extended pipelines’ networks in order to accommodate fluid transfer needs. The pipelines’ leaks may occur and lead to high energy and working fluid losses, while most of
Autor:
Saam Najat, Ahmed M. Abdelrhman, Christina G. Georgantopoulou, Iftikhar Ahmad, Syed Asad Imam
Publikováno v:
2019 8th International Conference on Modeling Simulation and Applied Optimization (ICMSAO).
Wearable devices are used in human health monitoring and their demand is increasing day by day. The limited shelf life of the batteries in these devices is one of the main problems. Research is going on either to increase the battery life or to repla
Autor:
Y. H. Ali, Christina G. Georgantopoulou, M. Salman Leong, Salah M. Ali, Iftikhar Ahmad, Ahmed M. Abdelrhman
Publikováno v:
MATEC Web of Conferences, Vol 255, p 02011 (2019)
This paper studies the diagnosis of twisted blade in a multi stages rotor system using adapted wavelet transform and casing vibration. The common detection method (FFT) is effective only if sever blade faults occurred while the minor faults usually r
Autor:
Nikolaos S. Vasilikos, Christina G. Georgantopoulou, Feras Abbas Ali, George A. Georgantopoulos
Publikováno v:
Applied Mechanics and Materials. 829:15-20
The oil transportation among the Middle East Countries and especially in Bahrain is extended and demands high performance and quality, reducing the leakages as well as the resistance to the flow simultaneously. Due to this reason in the present paper
Fluid mechanics is an important scientific field with various industrial applications for flows or energy consumption and efficiency issues. This book has as main aim to be a textbook of applied knowledge in real fluids as well as to the Hydraulic sy