Mechanical Engineering
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- ItemThe Effect of Parameters on Three-Dimensional Printer(2023-09-26) Sobhe Mayaleh; Fakhri Abd-AlnabiAbstract In the pursuit of sustainable energy practices, the reuse of electric vehicle (EV) batteries in solar energy storage systems offers a promising solution, that by extending the lifespan of these batteries and reducing waste, while supporting the integration of renewable energy sources. This study investigates the potential of reusing hybrid electric vehicle (HEV) batteries in solar energy storage systems. The study focuses on a sample of five (Hyundai Ioniq 5) battery modules, subjected to state testing to assess their capacity and suitability for second-life applications. That basically by charging and discharging the modules, then evaluating their performance. The results revealed that four batteries exhibited technical issues, like swelling and voltage drop, which makes them unfit for reuse, while only one module demonstrated satisfactory performance. To further investigate the charging and discharging characteristics of the same modules, a simulation model was developed using MATLAB and Simulink. The model was validated by comparing its outputs with the experimental results of the good module, utilizing the Root Mean Square Error (RMSE) method. The comparison showed an acceptable agreement between the simulation and experimental data during the discharging phase. Meanwhile, the charging process was not simulated accurately due to the difference on the charging source. Additionally, the developed simulation model was utilized to predict the remaining cycle life of the modules in their second life, considering different depths of discharge (DoD). The findings demonstrated a clear relation between DoD and the number of remaining cycles, with higher DoD values leading to a decrease in the expected cycle life.
- ItemReuse of Electric Vehicle Batteries at their End-of-Life in Solar Energy Storage: Evaluation and Simulation(2023-09-20) Mohannad Salameh; Ayyob Dwikat; Yazan TamimiAbstract In the pursuit of sustainable energy practices, the reuse of electric vehicle (EV) batteries in solar energy storage systems offers a promising solution, that by extending the lifespan of these batteries and reducing waste, while supporting the integration of renewable energy sources. This study investigates the potential of reusing hybrid electric vehicle (HEV) batteries in solar energy storage systems. The study focuses on a sample of five (Hyundai Ioniq 5) battery modules, subjected to state testing to assess their capacity and suitability for second-life applications. That basically by charging and discharging the modules, then evaluating their performance. The results revealed that four batteries exhibited technical issues, like swelling and voltage drop, which makes them unfit for reuse, while only one module demonstrated satisfactory performance. To further investigate the charging and discharging characteristics of the same modules, a simulation model was developed using MATLAB and Simulink. The model was validated by comparing its outputs with the experimental results of the good module, utilizing the Root Mean Square Error (RMSE) method. The comparison showed an acceptable agreement between the simulation and experimental data during the discharging phase. Meanwhile, the charging process was not simulated accurately due to the difference on the charging source. Additionally, the developed simulation model was utilized to predict the remaining cycle life of the modules in their second life, considering different depths of discharge (DoD). The findings demonstrated a clear relation between DoD and the number of remaining cycles, with higher DoD values leading to a decrease in the expected cycle life.
- ItemThe effect of adding water to pyrolysis carbon black (PCB) concrete(2023-07-05) Samed Hashish; Ahmed Dawod; Mohammad JaberAbstract Previous researches study the effect of adding pyrolysis carbon black PCB as a filler in concrete. These studies investigate the optimum amount and particle size of PCB varies from 0% to 10% to improve the concrete performance. to investigate the optimum percentage of PCB to improve the mechanical properties of the concrete. The experiment results indicate that using 4% PCB/c ratio will improve the concrete performance. The main objective of this project is to investigate the mechanical properties of concrete mixture using different percentage weight of water varies from 0.54 to 0.63 water/cement (W/C) ratio at constant pyrolysis carbon black (PCB)/c ratio of 4%. The process will be carried out experimentally using Slump, compression strength and adsorption tests to investigate the optimum W/C ratio that will be added to concrete mixture to improve its performance. Eight specimens for each w/c will be prepared at An-Najah National University lab, For each percentage ratio, three specimens will be tested after 7 days while the other specimens will be tested after 28 days to investigate the compression strength of the concrete after 7 and 28 days. In addition, the other two specimens are used for friction and absorption tests.
- ItemA small-Scale Road Cleaning Machine(2023-06-19) Othman Shuqqo; Rafeeq Tanbour; Samer QamhiyehAbstract The spiking numbers of the population that are being seen in the recent years have led to continuous overcrowding of public places, which made these places venerable to waste dumping on daily basis, many solutions are applied to control and manage the waste problems, and this project is one of them. This project is a small-scale road cleaning machine that aims to reduce dust and waste in narrow roads, public parks, university campuses, and other tight places where cleaning vehicles can’t reach. It sweeps and vacuums the road or pavement while it’s being driven at low speeds. In this research, the study was made to find out the advantages of this project which are: small size, high efficiency, and providing the greatest amount of public hygiene while the pollution is increasing on the planet. At the same time, a study of the ability to create it under the available capabilities and the current circumstances had been caried out. This project was originally intended to be a complete restoration of a mid-size abandoned cleaning vehicle, that was abandoned for over 20 years, but after intense studying of this case, and after going on multiple site tours to the works department facilities of Nablus municipality, and after learning from the engineers in the field, it had been realized that this idea can be hard achieved under the current circumstances, mainly due to financial reasons, and all the complications that come with working on such large machines, therefore, the team for this project opted for another design of a system that could help achieve the desired results using available resources at the lowest price possible.
- ItemAn experimental investigation of the impact of the dust deposition on the performance of the PV systems at different tilt angles in Palestine conditions. ___________________________________________________(2023-06-18) Mohammad Ahmad “Ali Khader; Karam Ali; Khalil Daraghmeh; Abdullah MansourAbstract: There are a lot of factors that can affect the solar energy that PV panels harvest one of the main factors is the soiling effect. The performance loss occur because the dust particles block the sun rays from getting in the PV cells therefore less power generated. The more the tilt angle is increased the harder the dust particles get sticky on the PV panel’s surface due the gravity pull them down. The objective of this study is to see whether increasing the tilt angle and how much will affect the soiling effect, PV panels will be set on tilt angles of (0,15,30 and 45) degrees, The soiling effect will be calculated by measuring the difference between the power generated by the cleaned and uncleaned PV panels on same time. The study had calculations of the soiling effect on different scenarios Monthly, each two weeks and weekly for Monthly average it has found that tilt angle of 45 the soiling affect has become low 2.53% on tilt angle of 30 has become 6.33% on tilt angle of 15 has reached 7.94% on tilt angle of 0 has become 10.20%.Also the study has recorded a spike in Khamasinee winds which is known that it causes high soiling effect as it caused the soiling loss of tilt angle of 0 spikes from 18.89% to 20.59%, tilt angle of 15 from 16.52% to 20.59%, tilt angle of 30 from 16.52% to 18.89% and tilt angle of 45 from 3.53% to 8.11% as daily readings for each one. The study has concluded the more tilt angle is increased the more soiling effect goes down also it has founded that the first half of May month and the last week of April do not cause huge soiling as it was founded in results but the second half of May were soiling effect tends to be a concern.