Salah M. Salih
@atu.edu.iq
Power mechanical Technical Engineering
Engineering Technical College of Al-Najaf, Al-Furat Al-Awsat Technical University, Kufa, Iraq
BSc Kufa University Mechanic Engineering Iraq , 2002
MS Kufa University Mechanic Engineering/ Power Iraq , 2005
Ph.D Basrah University Mechanic Engineering/ Power Iraq , 2019
EDUCATION
Thermal Mechanical Engineering
RESEARCH INTERESTS
Renewable Energy, Solar collector , Thermal Energy Storage
Heat Transfer Enhancement , Nanofluid flow, Porous media, Extended surface
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Ahmed Hikmet Jassim, Salah M. Salih, and Kadhum Hassan Ali
Walter de Gruyter GmbH
Abstract In this study, a steady-state forced convection heat transfer (HT) of air flow in a two-dimensional channel with a circular cross-section is numerically investigated. The analysis considers two heat sources at uniform temperatures along the lower surface of the mini-channel, with the upper surface remaining adiabatic to facilitate energy exchange. The heat sources are placed at distances L1 = 3.5 m and L2 = 1.5 m on the bottom surface. The finite element method is used to solve momentum-energy equations using Computational fluid dynamics (CFD) software, under constant and variable air properties. HT rates are computed for Reynolds numbers (Re ≤ 2,000) and Prandtl number (Pr = 0.713). The study evaluates the effects of Reynolds number, air thermo-physical properties, and thermal boundary conditions on hydrodynamic and thermal behavior. Results show that changes in the Nusselt number are significantly influenced by Re number, heat source configuration, and air properties. HT rate increases with Reynolds number, highlighting notable differences in centerline temperature, velocity, and conductive heat flux along the lower wall with variable air properties, with a maximum HT rate difference of 14% at T in = 20°C. Pressure also decreases with increasing Re number that shows good agreement between CFD results and empirical Shah equation.
Duna T. Yaseen, Muneer A. Ismael, and Salah M. Salih
Elsevier BV
Duna T. Yaseen, Salah M. Salih, and Muneer A. Ismael
Elsevier BV
Fatima A. Tali, Salah M. Salih, and Tahssen Ali Hussain
AIP Publishing
Ammar I. Alsabery, Salah M. Salih, Muneer A. Ismael, Ahmed K. Hussein, Ishak Hashim, and Jalal M. Jalil
Elsevier BV
Mohammed A. Majeed and Salah M. Salih
AIP Publishing
Duna T. Yaseen, Salah M. Salih, and Muneer A. Ismael
Elsevier BV
Salah M. Salih, Ammar I. Alsabery, Ahmed K. Hussein, Muneer A. Ismael, Mohammad Ghalambaz, and Ishak Hashim
Elsevier BV
Salah M. Salih, Ahmed Hikmet Jassim, and Jalal M. Jalil
AIP Publishing
Salah M. Salih, Jalal M. Jalil, and Saleh E. Najim
Journal of Energy Storage Elsevier BV
Abstract Two numerical models are accomplished to predict thermal effectiveness of a novel solar heater with and without paraffin-based on the latent heat storage. The conservation equations with enthalpy transforming method of phase change material (PCM) are analyzed using finite-volume with an explicit scheme. The influence of the main parameters is investigated such as; airflow rate ranging of ( 0.6 ≤ m ˙ a ≤ 1.8 ) kg/min, and heat flux ranging of (625 ≤ Is ≤ 825) W/m2. The results found that the air temperature rise is proportionate to the airflow rate inversely, during the charge/discharge processes. It was concluded that the useful power and the thermal performance are significantly depended upon the solar flux with airflow rate in both models. Moreover, the thermal effectiveness of the collector without and with paraffin was approximately (33.8 – 73.15)%, and (31.3 – 66.77)%, respectively, under the range of the studied parameters. It was noted that the decreased thermal efficiency is (5–7)% with PCM by absorbing the stored energy and releasing it to the system during sunset. To verify the accuracy of experimental and numerical results under the same operating conditions with a mean error of effectiveness with and without PCM was identified of ±6.4% and ± 8.6%, respectively, and the results were acceptable.
Salah M. Salih, Jalal M. Jalil, and Saleh E. Najim
Elsevier BV
Abstract This paper aims to investigate and analyze the thermal performance of a double-pass solar air heater using multiple rectangular capsules filled with paraffin wax-based on a phase change material PCM. An indoor projector simulator was used to test a new system during the charge/discharge process. In order to verify the accuracy of these readings, a mathematical model based on finite-volume scheme SIMPLE algorithm was applied to solve the three-dimensional forced convection turbulent flow in the double-pass solar heater. The computational results were in reasonable agreement with the experimental readings. The investigations were carried out at various airflow speed of (0.6, 0.9, 1.2, 1.5, and 1.8) kg/min and three solar irradiance intensities of 625, 725, and 825 W/m2. The results showed that the increased airflow rate leads to delay in the melting period and decrease melting temperature of the paraffin during the melting period. Furthermore, it can be detected that the optimal discharging period and the air temperature rise of the heater were reached of: 3hr with (17.95–3) °C, 2 h with (14–3) °C, and 1.25 h with (11–2.5) °C, for various solar intensity of 825, 725, and 625 W/m2 at the same airflow speed of 0.6 kg/min, respectively.
Salah M. Salih, Jalal M. Jalil, and Saleh E. Najim
IOP Publishing