Mohamad Syafiq Abdul Khadir
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Preferred name
Mohamad Syafiq Abdul Khadir
Official Name
Mohamad Syafiq , Abdul Khadir
Alternative Name
A. K., Mohamad Syafiq
A. K.Mohamad, Syafiq
Khadir, Mohamad Syafiq Abdul
A. Mohamad, Syafiq
Mohamad A.K., Syafiq
Main Affiliation
Scopus Author ID
57195982217
Researcher ID
W-5382-2019

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  • Publication
    A Parametric Study on The Performance of Latent Heat Thermal Energy Storage
    (Universiti Malaysia Perlis, 2025-06-10)
    Muhammad Haziq Akmal bin Mohd Ridzuan
    ;
    Mohamad Syafiq Abdul Khadir
    ;
    Adel Nasser
    ;
    Masniezam Ahmad
    ;
    Mohd Haidiezul Jamal Ab Hadi
    ;
    Muhamad Nur Misbah
    ;
    Abdul Syafiq Abdull Sukor
    Thermal energy storage (TES) systems play a crucial role in sustainable energy management by storing excess energy for later use, improving overall efficiency, reducing emissions, and enhancing grid reliability. Among TES technologies, latent heat thermal energy storage (LHTES) systems are particularly attractive due to their high energy storage capacity and ability to operate at nearly constant temperatures. However, the low thermal conductivity of phase change materials (PCMs) remains a significant challenge, limiting the rate of heat transfer and overall system performance. This study explores the performance of an LHTES system by examining the effects of inlet temperature, mass flow rate, and flow direction, with a particular focus on horizontal flow configurations. The aim is to identify optimal parameter settings that enhance heat transfer efficiency and improve system performance. Using ANSYS Fluent, numerical simulations were conducted with paraffin wax RT82 as the PCM and copper as the triplex tube heat exchanger material. The results showed that an optimized parameter combination reduced the melting time to 232.8 minutes, a 51.44% improvement over the baseline case. These findings highlight the potential for strategic parameter optimization to significantly enhance LHTES efficiency by accelerating PCM melting and improving thermal distribution. This study provides valuable insights into optimizing LHTES system performance, contributing to the development of more effective energy storage solutions that minimize energy losses and improve thermal management.
      1  25
  • Publication
    Analysis of airbox performance improvement for Modenas model by geometrical analysis
    (IOP Publishing, 2017-10-29)
    Shahriman Abu Bakar
    ;
    Mohamad Syafiq Abdul Khadir
    ;
    Hamid K.A.
    ;
    Mohd Sani Mohamad Hashim
    ;
    Hazry Desa
    ;
    Zuradzman Mohamad Razlan
    ;
    Ruslizam Daud
    ;
    Cheng Ee Meng
    ;
    Siti Khadijah Za'aba
    ;
    Teh W.S.W.
    ;
    Shuaib N.A.
    ;
    Wan K.
    ;
    Ishak A.A.
    Airbox system consist of filter element which greatly influenced the quality air into the engine system. The main objective of this study is to improve the performance of airbox system that attached in MODENAS CT115S engine system. Airbox, an empty air chamber, accumulates the outside air and feed it to the cylinder of the engine for combustion process and contains filter element. The function is to provide cleaner air for greater combustion rate and cleaner emission. The performance of airbox can be influenced by changing the location of the filter element and the geometry of airbox. By changing these parameters, the performance of the airbox system can be enhanced. In this study, the geometry of the airbox inlet has been changed in terms of shape and size. The inlet shape for Design 1 in round shape with a diameter of 43.60 mm. Meanwhile for Design 2, the geometry of airbox inlet was changed to a rectangular shape. Between these two designs, Design 1 provides a better result in terms of mass flow rate (10.41 kg/s), velocity (9.84 m/s) and pressure difference (83.44 kPa). By increasing the performance of airbox, the performance of engine can be increased.
      6  18
  • Publication
    Improvement of cam performance curve using B-Spline curve
    (IOP Publishing, 2017-10-29)
    Shahriman Abu Bakar
    ;
    Mohamad Syafiq Abdul Khadir
    ;
    Wan K.
    ;
    Hashim M.S.M.
    ;
    Hazry Desa
    ;
    Cheng Ee Meng
    ;
    Ruslizam Daud
    ;
    Zuradzman Mohamad Razlan
    ;
    Siti Khadijah Za'aba
    ;
    Muhammad Azizi Azizan
    The mathematical modeling approach has been applied in order to increase the cam profile curve of Modenas CT115s performance by using MATLAB software as a programmed to calculate the mechanism of the cam profile. Cam is used inside the engine to push the rocker and consequently open and close the engine valve that allows the fuel-air mixture to be entered during the combustion process. The B-Spline curve was implemented in order to enhance the current performance of the cam profile. The calculation had been done by using manual and MATLAB software. The results obtained has been analyzed and interpreted in plotting the graphs. From the analysis, the profile that had the highest displacement factor, sk produced higher cam curve performance of the engine. Thus, it can be concluded that the increase of the displacement factor, sk can increase the engine performance as the valve displace further in which allow higher fuel-air mixture entrance during the combustion process.
      3  18
  • Publication
    Enhancement of engine performance by studying the effect of cam profiles design on Modenas motorcycle using 1-D simulation analysis (Restricted)
    (Universiti Malaysia Perlis (UniMAP), 2017)
    Mohamad Syafiq Abdul Khadir
    In the automotive industry, enhancing and improving the engine performance is one of the major work for improving the overall performance of the engine and vehicle. Every iteration of the engine, will overcome the issues raised in the previous batch of the engine as well as improve the brake power and brake torque of the engine. There are a lot of aspects need to be considered in achieving this objective such as intake part, exhaust part, camshaft and cam profiles. Thus, this research is proposed to enhance overall engine performance by improving current cam profiles for MODENAS CT115S model. The current performance for MODENAS CT115S below than other competitors. By using geometrical analysis, five new designs were proposed with different cam parameters including circle base radius and cam profile. By the aid of AVL Advance Simulation Technology software, the benchmarking of real and baseline data were conducted in order to verify 1-D simulation planning for the simulation purposes. Once the result of the simulation was in the acceptable range, the new designs can be investigated to find the valve lift and cam characteristics. From the valve lift curve, new cam designs were undergoing simulation to determine the engine performance curve. Among all new cam designs, cam design D, with 14.5 mm plotted the second highest maximum valve lift but generated the highest brake power and brake torque curve. Therefore, this cam design was the optimum design among all five designs with the best performance curve, with 8.89 N-m at 7000 RPM of brake torque and produced 7.25 kW of brake power at 9000 RPM.