Rania E. Hammam
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Rania E. Hammam has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
- Aliaa Abdelfatah
Department, Faculty of Engineering, Mining, Petroleum, and Metallurgical Engineering, Cairo University, Giza, Egypt
1 shared publication - Eman M. Mostafa
PVT Lab, Production Department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt
1 shared publication - Eman S. Noemy
PVT Lab, Production Department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt
1 shared publication - Hassan Megahed
Department, Faculty of Engineering, Mechanical Design and Production Engineering, Cairo University, Giza, Egypt
1 shared publication - Lamiaa Z. Mohamed
Mining, Petroleum, and Metallurgical Engineering Department, Faculty of Engineering, Cairo University, Giza, Egypt
1 shared publication - Mostafa Alshafey
Department, Faculty of Engineering, Mechanical Design and Production Engineering, Cairo University, Giza, Egypt
1 shared publication
Latest Publications
- 29 April 2026
- Published by Springer Nature in Chemical Papers
- Vol. 80 (7) , 1-18
Microstructure and corrosion performance of Ti53.3−xNb10Zr10Ni10Co10Fe6.7Bx compositionally complex alloys in acidic environments
- 29 April 2026
- Published by Springer Nature in Chemical Papers
- Vol. 80 (7) , 1-18
Microstructure and corrosion performance of Ti53.3−xNb10Zr10Ni10Co10Fe6.7Bx compositionally complex alloys in acidic environments
- Open Access
- 28 January 2025
- Published by Springer Nature in Emergent Materials
- Vol. 8 (4) , 3355-3372
Evaluation of stability, optical properties, and thermal performance of innovative TiO2/FeVO4 Ethylene Glycol hybrid nanofluids
The effectiveness of direct absorption solar collectors (DASCs) is limited due to the low photothermal conversion efficiency and poor heat transfer qualities of traditional fluids. One potential solution to address this problem is the development of innovative technologies to enhance the solar absorption ability and thermal conductivity of conventional fluids. New generation nanofluids where nanosized particles are dispersed in base fluids like water or ethylene glycol (EG) have attracted interest within diverse solar technologies owing to their superior optical and thermal properties. This study presents a novel TiO2/FeVO4/Ethylene glycol (TFV/EG) nanofluid which exhibits significant solar absorption and thermal stability characteristics. A thorough characterization of the samples was conducted utilizing X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy, High-Resolution Transmission Electron Microscopy (HRTEM), nitrogen adsorption-desorption isotherms and Thermogravimetric Analysis (TGA). The stability, optical and rheological characteristics of TFV nanofluids were also examined. The study’s outcomes indicated that the integration of TFV nanoparticles into ethylene glycol (EG) markedly improved its optical absorption, especially at a concentration of 0.8 g/l TFV, which demonstrated robust absorption in the UV-visible light spectrum. Long-term stability assessments indicated sedimentation for all TFV concentrations following 65 days. A substantial 270% enhancement in thermal conductivity in comparison to EG base fluid was noted at 0.8 g/l TFV reaching 0.83 W·m⁻¹·K⁻¹. All nanofluids exhibited shear-thinning behavior, a hallmark of non-Newtonian fluids. The suggested TFV/EG represents a notable category of nanofluids that exhibited improved thermal performance and stability, rendering them very advantageous for efficient DASCs.
- 28 January 2025
- Published by Springer Nature in Emergent Materials
- Vol. 8 (4) , 3355-3372
Open AccessEvaluation of stability, optical properties, and thermal performance of innovative TiO2/FeVO4 Ethylene Glycol hybrid nanofluids
The effectiveness of direct absorption solar collectors (DASCs) is limited due to the low photothermal conversion efficiency and poor heat transfer qualities of traditional fluids. One potential solution to address this problem is the development of innovative technologies to enhance the solar absorption ability and thermal conductivity of conventional fluids. New generation nanofluids where nanosized particles are dispersed in base fluids like water or ethylene glycol (EG) have attracted interest within diverse solar technologies owing to their superior optical and thermal properties. This study presents a novel TiO2/FeVO4/Ethylene glycol (TFV/EG) nanofluid which exhibits significant solar absorption and thermal stability characteristics. A thorough characterization of the samples was conducted utilizing X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy, High-Resolution Transmission Electron Microscopy (HRTEM), nitrogen adsorption-desorption isotherms and Thermogravimetric Analysis (TGA). The stability, optical and rheological characteristics of TFV nanofluids were also examined. The study’s outcomes indicated that the integration of TFV nanoparticles into ethylene glycol (EG) markedly improved its optical absorption, especially at a concentration of 0.8 g/l TFV, which demonstrated robust absorption in the UV-visible light spectrum. Long-term stability assessments indicated sedimentation for all TFV concentrations following 65 days. A substantial 270% enhancement in thermal conductivity in comparison to EG base fluid was noted at 0.8 g/l TFV reaching 0.83 W·m⁻¹·K⁻¹. All nanofluids exhibited shear-thinning behavior, a hallmark of non-Newtonian fluids. The suggested TFV/EG represents a notable category of nanofluids that exhibited improved thermal performance and stability, rendering them very advantageous for efficient DASCs.