ibrahim nabil | Suez Canal University (original) (raw)

Papers by ibrahim nabil

International Journal of Advanced Scientific and Technical Research, 2019

This study experimentally investigates heat transfer enhancement of an impinging free liquid jet ... more This study experimentally investigates heat transfer enhancement of an impinging free liquid jet on a hot surface of copper plate with different shapes, by replacing the base fluid, distilled water with Al 2 O 3 nanofluid (10 nm), different shapes of heated surface of copper plate (Flat, Concave, Convex Wavedand Corrugated), different impingement Reynolds numbers ranging from (7,565 to nearly 18,460), five nanoparticles mass concentrations (0%, 0.2%, 0.5%, 1% and 2%) were studied using distilled water and AL 2 O 3 nanofluid jet impingement.The results of the current experiments show that increasing the volume flow rate of the cooling fluid improves the heat transfer between the free liquid jet and the hot copper plate.Moreover, using nanofluid jet enhances the heat transfer.Additionally, increasing the surface area enhances the heat transfer between the cooling fluid and the hot plate and decreases the cooling time.Finally, it was noted that surface shape, impingement Reynolds number and nanofluid concentration affect the heat transfer enhancement processsignificantly.The accumulative effect of using nanafluid jet 2% with corrugated surface with higher flow rate on Nusselt number can reach 185%. On the other hand, using a dispersant for the nanofluid as polyethylene glycol keeps the nanofluid suspension and prevents agglomeration, but reduces its heat transfer enhancement effect.

Environmental Science and Pollution Research, Dec 12, 2023

The use of humidification-dehumidification water desalination technology has been shown to be a p... more The use of humidification-dehumidification water desalination technology has been shown to be a practical means of meeting the demand for freshwater. The aim of this review is to investigate the impact of salinity on HDH techniques that have various benefits in terms of both economics and the environment, including the capacity to operate at low temperatures, utilize sustainable energy sources, the need for low maintenance, and straightforward construction requirements. Also, in this review, it is observed that the HDH system's components are strong and capable of treating severely salinized water. It can treat water in an appropriate way than other desalination technologies. This technology has recently been commercialized to treat highly salinized generated water. However, more research is needed to determine how salinity affects HDH productivity. According to several research investigations, while the specific thermal energy consumption increased considerably and the productivity of water per unit of time decreased significantly as the salt mass percentage grew, the purity of clean water did not suffer. The rejected brine must be reduced by increasing the total water recovery ratio in the HDH system. Through this review, it was found that brine control is becoming increasingly important in the water processing industry. ZLD systems, which aim to recover both freshwater and solid salts, can be a viable replacement for disposal methods. Finally, through this reviewer, it was concluded that HDH desalination systems may operate with extremely saline water while increasing salinity has a significant influence on system performance.

American Journal of Modern Energy, 2021

International Journal of Advanced Scientific and Technical Research, 2019

This study experimentally investigates heat transfer enhancement of an impinging free liquid jet ... more This study experimentally investigates heat transfer enhancement of an impinging free liquid jet on a hot surface of copper plate with different shapes, by replacing the base fluid, distilled water with Al 2 O 3 nanofluid (10 nm), different shapes of heated surface of copper plate (Flat, Concave, Convex Wavedand Corrugated), different impingement Reynolds numbers ranging from (7,565 to nearly 18,460), five nanoparticles mass concentrations (0%, 0.2%, 0.5%, 1% and 2%) were studied using distilled water and AL 2 O 3 nanofluid jet impingement.The results of the current experiments show that increasing the volume flow rate of the cooling fluid improves the heat transfer between the free liquid jet and the hot copper plate.Moreover, using nanofluid jet enhances the heat transfer.Additionally, increasing the surface area enhances the heat transfer between the cooling fluid and the hot plate and decreases the cooling time.Finally, it was noted that surface shape, impingement Reynolds number and nanofluid concentration affect the heat transfer enhancement processsignificantly.The accumulative effect of using nanafluid jet 2% with corrugated surface with higher flow rate on Nusselt number can reach 185%. On the other hand, using a dispersant for the nanofluid as polyethylene glycol keeps the nanofluid suspension and prevents agglomeration, but reduces its heat transfer enhancement effect.

Environmental Science and Pollution Research, Dec 12, 2023

The use of humidification-dehumidification water desalination technology has been shown to be a p... more The use of humidification-dehumidification water desalination technology has been shown to be a practical means of meeting the demand for freshwater. The aim of this review is to investigate the impact of salinity on HDH techniques that have various benefits in terms of both economics and the environment, including the capacity to operate at low temperatures, utilize sustainable energy sources, the need for low maintenance, and straightforward construction requirements. Also, in this review, it is observed that the HDH system's components are strong and capable of treating severely salinized water. It can treat water in an appropriate way than other desalination technologies. This technology has recently been commercialized to treat highly salinized generated water. However, more research is needed to determine how salinity affects HDH productivity. According to several research investigations, while the specific thermal energy consumption increased considerably and the productivity of water per unit of time decreased significantly as the salt mass percentage grew, the purity of clean water did not suffer. The rejected brine must be reduced by increasing the total water recovery ratio in the HDH system. Through this review, it was found that brine control is becoming increasingly important in the water processing industry. ZLD systems, which aim to recover both freshwater and solid salts, can be a viable replacement for disposal methods. Finally, through this reviewer, it was concluded that HDH desalination systems may operate with extremely saline water while increasing salinity has a significant influence on system performance.

American Journal of Modern Energy, 2021