Muhammad Lutfi Abd. Latif
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Muhammad Lutfi Abd. Latif
Official Name
Muhammad Lutfi, Abd. Latif
Alternative Name
Latif, Muhammad Lutfi Abd
Latif, M. L. A.
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Scopus Author ID
57210789242

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  • Publication
    Optimization analysis on spiral blade distributor via design of experiment (DOE) in fluidization system
    (AIP Publishing, 2020)
    Muhammad Lutfi Abd. Latif
    ;
    Mohd Al-Hafiz Mohd Nawi
    ;
    Mohd. Hazwan Mohd. Hanid
    ;
    Mohd Razman Amin
    ;
    Ku Mohammad Yazid Ku Ibrahim
    ;
    Hazizul Hussein
    Nowadays, research using optimization method has gained a place in the research world. Applying in fluidization process due to determine the appropriate processing parameter setting was very lack on fluidization publication. By using Design of Experiment (DOE), it was able to analyze the data from simulation result to propose a new optimum design of spiral blade distributor. In order to determine the appropriate parameter setting, the application of optimization via full factorial design (FFD) method work to improve the parameter such as; (i) pitch length and (ii) inclination angle towards on uniform velocity distribution especially on tangential velocity and low pressure drop. Based on the statistical analysis results, the mean tangential velocity does not show a performance contribution via those parameter. However, the pressure drop results shows a significant correlation by increasing the performance of fluidization systems.
      3  14
  • Publication
    Design of experiment (DOE) analysis in optimizing of annular blade distributor depth in fluidization system
    (AIP Publishing, 2020)
    Hazizul Hussein
    ;
    Mohd Al-Hafiz Mohd Nawi
    ;
    M. H. M. Hazwan
    ;
    Muhammad Lutfi Abd. Latif
    ;
    Ku Mohammad Yazid Ku Ibrahim
    Currently, there are numerous methods that involved in optimization. The aim on their researchers is to determine the appropriate processing parameters setting in the systems and process. Studies on fluidization system by using an optimisation method are very scanty. Apart from quality, the consumption energy in the fluidization systems also plays an important role. Therefore, in this study the researchers have using a Design of Experiment (DOE) method that will discrete possible values based on the data extracted from simulation analyzed. By selecting the range of distributor blade and cyclone area (0mm, 100mm and 200mm) via cone height (150mm, 200mm and 250mm) through 60 number of blades and 15° horizontal inclination angle, design of experiment (DOE) has been constructed by using the Full Factorial Design (FFD) approach. Based on the simulation results, data from mean of tangential velocity and pressure drop has been selected to analyze the performance of plenum chamber design in fluidization process. The results from this analysis has shown a beneficial scientific knowledge and alternative solution to the type of plenum chamber to enhance the uniformity of velocity distribution and discharge coefficient produced using optimisation technique in fluidization system.
      3  16
  • Publication
    Perforated plate distributor in fluidization system
    (AIP Publishing, 2020)
    Ku Mohammad Yazid Ku Ibrahim
    ;
    Mohd Al-Hafiz Mohd Nawi
    ;
    M. H. M. Hazwan
    ;
    Nurul Fatin Najihah Abd Samat
    ;
    Hazizul Hussein
    ;
    Muhammad Lutfi Abd. Latif
    The current study on fluidizations system involved with a new design of different slotted inclination angle perforated plates. The new design was to overcome the disadvantage of the conventional of perforated plate which is most of the distributor didn't have an inclination angle. Results from velocities distribution in each perforated plate are extracted. The designs are produces by using Computer-Aided Design (CAD) while studies on characteristics of air flow are be made using computational fluid dynamics (CFD). Each perforated plate design was different in their types of hole (slotted), number of slotted and inclination angle in order to get the best result which respect to the tangential velocity values. The performance of the SFB was assessed in term of velocity distributions values. The higher the tangential velocity, the better the air will be distributed. The most important part to the appropriate design in the plate distributor is slotted inclination angle and the slotted number. The good results in this study were produced by the less number of the slotted on the plate distributor and low slotted inclination angle which is able to produce a high average velocity compared with the less number of slotted.
      1  25
  • Publication
    Effect of plenum chamber design on discharge coefficient in swirling fluidized bed
    (AIP Publishing, 2020)
    Hazizul Hussein
    ;
    Mohd Al-Hafiz Mohd Nawi
    ;
    M. H. M. Hazwan
    ;
    Darius Lee Jian Feng
    ;
    Ku Mohammad Yazid Ku Ibrahim
    ;
    Muhammad Lutfi Abd. Latif
    Using a conventional fluidization systems might tend to use high energy consumption due to the certain parameter design on fluidization. The current study was run to give some overview on the new method which is might useful in fluidization process especially in mineral processing. By designing a combination of cyclone and the inclination angle of annular blade distributor, the gas will cause swirling flow from the cyclone plenum chamber then pass through the distributor gap and certainly achieve suitable performance in term of uniformity fluidization. Numerical simulation such as Computational Fluid Dynamics (CFD) has been widely used to investigate the parameters that influence the system itself. The parameter design of 60 blade distributor with 15° horizontal inclination angle at different depth (0mm, 100mm and 200mm) via several cone height (150mm, 200mm and 250mm) blade distributor to the cyclone plenum chamber has been applied in this current studies. The CFD software is used to compute and obtain the velocity magnitude. The uniformity of velocity distribution are the crucial investigation as this will be used to determine the optimum SFB systems. Effect of 0mm depth blade distributor to the cyclone plenum chamber with 200mm cone height via 60 blade distributors through to 15° of horizontal inclination angle was the most suitable parameter to assist the velocity uniformity.
      26  2
  • Publication
    Enhancing Quality Control in Automotive Reconditioning : A Case Study of Carsome Certified Lab
    (Universiti Malaysia Perlis, 2025-06-10)
    Muhammad Naufal Aqil Bin Daud
    ;
    Mohamad Suhaimi Shahrin
    ;
    Muhammad Aiman Ahmad Fozi
    ;
    Muhammad Lutfi Abd. Latif
    This study examines quality control (QC) practices at Carsome Certified Lab (CCL), focusing on the reconditioning of pre-owned vehicles. Employing a mixed-methods approach, the research integrates analysis of internal QC records, interviews with CCL staff, and customer satisfaction surveys. Findings highlight significant inconsistencies, especially in aesthetic evaluations, with about 30% of vehicles requiring rework due to initially missed defects. Customer surveys indicate a high overall satisfaction rate (75%), yet 20% report dissatisfaction linked primarily to aesthetic issues. Statistical analysis reveals a strong correlation (p < 0.05) between the thoroughness of QC checks and customer satisfaction levels. The study advocates for more rigorous, standardized QC protocols and the adoption of advanced technologies (digital tools, artificial intelligence, imaging technologies, etc.) to improve evaluation precision and consistency. These enhancements are projected to boost customer satisfaction and operational efficiency, serving as a model for similar reconditioning facilities and contributing to industry-wide standards improvement.
      4  16
  • Publication
    Characteristics on air flow distribution via spiral blade distributor in a swirling fluidized bed
    (AIP Publishing, 2020)
    Muhammad Lutfi Abd. Latif
    ;
    Mohd Al-Hafiz Mohd Nawi
    ;
    Mohd. Hazwan Mohd. Hanid
    ;
    Mohd Razman Amin
    ;
    Ku Mohammad Yazid Ku Ibrahim
    ;
    Hazizul Hussein
    Swirling Fluidized Bed (SFB) is a new method which is very useful in drying process especially in mineral processing. By designing the annular blade distributor inclined, the gas will pass through the distributor, then certainly achieve suitable performance in term of fluidization. Numerical simulation such as Computational Fluid Dynamics (CFD) has been widely used to investigate the parameters that influence the system itself. The current study focused on the spiral blade distributor with various pitch length (60mm, 80mm, and 100mm), and various horizontal inclination angle (0°, 12° and 15°). The CFD is used to compute and btain the velocity distribution data, as well as tangential velocity. The uniformity of tangential velocity distribution are the crucial investigation as this will be used to determine the optimum SFB systems. Effect of low blades inclination angle (0°) and low pitch length (60mm) has showed the most significant finding in this study.
      1  11
  • Publication
    Distributor optimization: analysis via design of experiment (DOE) on perforated plate distributor in fluidized bed
    (AIP Publishing, 2020)
    Ku Mohammad Yazid Ku Ibrahim
    ;
    Mohd Al-Hafiz Mohd Nawi
    ;
    Mohd. Hazwan Mohd. Hanid
    ;
    Nurul Fatin Najihah Abd Samat
    ;
    Hazizul Hussein
    ;
    Muhammad Lutfi Abd. Latif
    Generally in industry, the fluidization process involves with plate distributor and used a type of perforated plate distributor as their fluidization process. In terms of observation, this type of distributor has used a large amount of energy consumption. Currently, the new design of perforated plate that involved; (i) number of slotted, (ii) slotted width, (iii) slotted length and (iv) thickness distributor has been produced and tested via Computational Fluid Dynamics (CFD). Then, the results from the simulation in each perforated plate are been extracted and analyze by using a Design of Experiment (DOE) method through full factorial design (FFD). Results from the statistical analysis have shown a significant parameter on performance of the fluidization that was assessed by pressure drop values and velocity distributions values. The results from this statistical analysis showed a significant parameter on mean tangential velocity and pressure drop. In conclusion, by using the optimization method the new design of distributor would propose less energy consumption in future fluidization application.
      19  2