articles by Mohammad ALshawabkeh
Renewable Energy Focus, 2024
Alkaline Water Electrolyzer (AWE) technology shows promising potential for shifting towards green... more Alkaline Water Electrolyzer (AWE) technology shows promising potential for shifting towards green hydrogen production. With the growing global interest in green hydrogen, understanding the dynamics of AWE systems becomes crucial to improving their performance. Therefore, this paper aims to provide a novel sensitivity analysis aspect to investigate the correlation within parameter variables associated with AWE's electrode separation media. These parameters include electrode-diaphragm gap, temperature, diaphragm thickness, and porosity, aiming to evaluate their impact on AWE current density. The methodology involves the development of a Computational Fluid Dynamics (CFD) model, conducting a parametric study, performing Analysis of Variance (ANOVA), and sensitivity testing within specified parameter ranges. The findings show that diaphragm porosity has a considerable effect, especially between 15 % and 60 % porosity, where the trend levels off at higher values. The electrode-diaphragm gap trend reveals a sensitive, nonlinear increase in cell current density as the gap decreases from its average, with a 75 % decrease yielding over 100 % higher current density, while adjustments beyond 10 mm have minimal impact on current density despite significant variations in other parameters. A 50 % temperature rise increases current density by 40 %, while a 50 % diaphragm width reduction modestly boosts current density by around 10 %. Understanding these sensitivities is vital for optimizing AWE's performance.
SAE International Journal of Electrified Vehicles, Oct 10, 2023
In response to the ongoing challenge of limited driving range in electric vehicles (EVs), this st... more In response to the ongoing challenge of limited driving range in electric vehicles (EVs), this study introduces an innovative solution by integrating Micro Wind Turbines (MWTs) as range extenders. MWTs capture kinetic energy from oncoming airflow, converting it into mechanical energy. The research employs mathematical modeling and numerical analysis to optimize MWT placement on the EV's front bumper and assess its impact. Notably, the integration of MWTs leads to a 13.1% increase in Kia Saoul 2018 vehicle efficiency during the FTP highway driving cycle, enhancing the driving range by 24 kilometers. In addition, an extension of this concept to heavy-duty vehicles, exemplified by the Volvo FH Electric, showcases a 7% increase in overall efficiency with promising results in the context of the highway driving cycle. This research presents a pioneering solution with far-reaching implications for enhancing EV range and promoting sustainable transportation.
SAGE, Apr 11, 2023
The proposed work aims to generate electricity by utilising the air flowing around the vehicle t... more The proposed work aims to generate electricity by utilising the air flowing around the vehicle through the micro wind turbines (MWTs). In this case, the electricity produced can be used to charge up the battery or power up additional vehicle accessories, which increases the efficiency or/and range of the vehicle. Three driving cycles have been conducted to examine the model’s performance in moderate, highly dynamic and highway driving scenarios. The analytical works resulted in an 8.38\%, 4.6\% and 1.01\% efficiency increase for the case of the Highway driving cycle (FTP), the new European driving cycle (NEDC) and the standardisation random test aggressive driving cycle (RTS), respectively when adding the micro wind turbines model. In terms of range analysis, 16, 11 and 2 km of the range were added to the full battery charge range of the vehicle when the vehicle was simulated for the case FTP, NEDC and RTS driving cycles scenarios, respectively. The results conclude that the value of micro wind turbines is shimming with highway driving scenarios where the effect of regenerative braking is absent and the drag force acting on the vehicle is at its highest rate.
Papers by Mohammad ALshawabkeh
SAE International Journal of Electrified Vehicles
In recent years, the number of electric vehicles (EVs) has grown rapidly, as well as public inter... more In recent years, the number of electric vehicles (EVs) has grown rapidly, as well as public interest in them. However, the lack of sufficient range is one of the most common complaints about these vehicles, which is particularly problematic for people with long daily commutes. Thus, this article proposed a solution to this problem by installing micro wind turbines (MWTs) on EVs as a range extender. The turbines will generate electricity by converting the kinetic energy of the air flowing through the MWT into mechanical energy, which can have a reasonable effect on the vehicle aerodynamics. The article uses mathematical modelling and numerical analysis. Regarding the modelling, a detailed EV model in MATLAB/SIMULINK was developed to analyze the EV performance using various driving cycles in real time. In terms of numerical analysis, a detailed computational fluid dynamics (CFD) model has been implemented on a sample EV (Kia Soul) and an MWT using the Moving Reference Frame (MRF) meth...
Advances in Mechanical Engineering, Apr 1, 2023
The proposed work aims to generate electricity by utilising the air flowing around the vehicle th... more The proposed work aims to generate electricity by utilising the air flowing around the vehicle through the micro wind turbines (MWTs). In this case, the electricity produced can be used to charge up the battery or power up additional vehicle accessories, which increases the efficiency or/and range of the vehicle. Three driving cycles have been conducted to examine the model’s performance in moderate, highly dynamic and highway driving scenarios. The analytical works resulted in an 8.38%, 4.6% and 1.01% efficiency increase for the case of the Highway driving cycle (FTP), the new European driving cycle (NEDC) and the standardisation random test aggressive driving cycle (RTS), respectively when adding the micro wind turbines model. In terms of range analysis, 16, 11 and 2 km of the range were added to the full battery charge range of the vehicle when the vehicle was simulated for the case FTP, NEDC and RTS driving cycles scenarios, respectively. The results conclude that the value of micro wind turbines is shimming with highway driving scenarios where the effect of regenerative braking is absent and the drag force acting on the vehicle is at its highest rate.
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articles by Mohammad ALshawabkeh
Papers by Mohammad ALshawabkeh