Aly Soliman

• Master of Engineering
• Egypt-Japan University of Science and Technology

The current paper evaluated experimentally an innovative sun tracking concentrated solar still under Egyptian climatic conditions during the summer of 2022. The proposed system consists of a 120-cm-diameter parabolic reflector mirror that tracks the sun using a dual axis tracking system, a cylindrical solar still with a volume of 3.7 L positioned i...

A newly integrated single-junction PV-heat pipe system with an innovative heat sink design comprised of an elliptical cross-section area and varied aspect ratios is proposed and experimentally investigated. Unlike the prior systems, the proposed one fits the requirements for practical applications, such as adequate cooling efficiency, ease in manuf...

Flat heat pipe (HP)-phase change material (PCM) hybrid system used for thermal regulation of simulated PV is investigated experimentally. Three PCMs; Rubitherm RT-25 H (RT25), Rubitherm RT-35 H (RT35), and Rubitherm RT-44 H (RT44) coupled with the HP are tested for best cooling system. Impact of using one or two heat sinks compared with PCM only i...

This paper introduces an experimental study for concentrating solar cell performance cooled by using flat heat pipe. The cell represents the heat pipe evaporator, and the heat pipe condenser is cooled by using a rectangular finned heat sink. This study is investigated at various heat pipe condenser and adiabatic regions lengths and concentration ra...

The impact of heat spreader (H.S) size, microchannels (MICs) configurations and utilizing nanoparticles (NPs) on the performance of concentrated photovoltaic (CPV) cooled by the spreader-microchannels system is performed in this work. The spreader is inserted among the photovoltaic (PV) and the MICs with various area ratios (A.R) of the spreader to...

In the study, an experimental investigation to the performance of the solar cells coupled with heat sink is presented. Indoor experimental setup was designed and assembled to investigate the impact of using heat sink cooling system on the performance of solar cells. Halogen lamps used to simulate the solar radiation and the study is carried out at...

Recently, Egypt is facing an energy problem due to the increase in consumption and population. There are two ways to face this issue; first, the world should be more interested in renewable energy resources and the second is the efficient use of energy. Refrigeration and air conditioning systems have a high rate of electrical power consumption. For...

The performance of a new cooling technique composed of a heat spreader (HS) and microchannels for cooling the solar cells (photovoltaic panels) is carried out. 3D steady state physical model for the solar cell coupled with the heat spreader and the microchannels is developed and solved numerically. The model is used to investigate the effect of usi...

In the current study, three-dimensional theoretical model of the photovoltaic (PV) panel coupled with a heat spreader is carried out. A thermal model is constructed and solved mathematically by using ANSYS software. The effect of coupling the heat spreader with the PV and the heat spreader dimensions on the PV cooling and performance is studied. Al...

The energy performance in a secondary loop of refrigerating systems using nanomaterials additives was investigated analytically. In order to predict the performance of these systems an analytical model was developed. A combination of the Effectiveness-Number of Transfer Units method and traditional heat transfer and fluid dynamics correlations was...

The performance of a vapor compression cycle with nanoparticles additives in the working fluid was investigated theoretically. In the present study four different nano materials with R143-a refrigerant were investigated. The performance of the cycle was studied for different condensation and evaporation temperature. By using enthalpy which is obtai...

The performance of a vapor compression cycle with nanoparticles additives in the working fluid is investigated experimentally. Polyolester (POE) oil with AL2O3 nanoparticles additives is used to enhance the performance in the vapor compression cycle with R-143a refrigerant. The stability of nanofluid was first tested by using sedimentation test. Th...