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Mohd Riduan Jamalludin
Preferred name
Mohd Riduan Jamalludin
Official Name
Mohd Riduan , Jamalludin
Alternative Name
Jamalludin, M. R.
Riduan Jamalludin, Mohd
Main Affiliation
Scopus Author ID
55778617300
Researcher ID
M-4808-2019
AAU-5306-2020
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1 - 10 of 16
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PublicationThe effect of different khaya senegalensis raw feedstock particle sizes on solid fuel pellet quality( 2020-07-09)
;Usamah M.I. ;Yee K.C. ;Leng L.Y.Rosli M.U.M.In recent years, the usage and demand for biomass pellet has been increasing due to the need of substitution for non-renewable energy source. Therefore, high quality solid fuel is in need to cater this demand. Pellet qualities such as durability, calorific value and density are different depending on the type of material, size of particle and the density of the feedstock. In this study, the durability, calorific value and unit density of Khaya Senegalensis pellet was investigated. This was done to identify the optimum particle size to obtain the best qualities of pellet possible. The ground biomass material was separated into 0.15 mm, 0.50 mm and 1.00 mm particle sizes, pelletized and ultimately the pellet durability, calorific value and unit density were tested in this study. It was found that 0.15 mm particle size resulted in the highest pellet durability, and density value. 1.00 mm particle size pellet has the highest calorific value. As a conclusion, different raw biomass feedstock particle size will affect the durability, density and calorific value of pellet. -
PublicationElectrospinning parameters evaluation of PVDF-ZnO/Ag2CO3/Ag2O composite nanofiber affect on porosity by using response surface methodology( 2020-01-01)
;Rosman N. ;Wan Salleh W.N. ;Adam M.R. ;Ismail N.H. ;Jaafar J. ;Harun Z.Ismail A.F.The electrospinning process is a very important technique for fabricating polymeric nanofibers by applying external electrostatic forces. This study reports on the modeling of the electrospinning process of polyvinylidene fluoride (PVDF) and the immobilized ZnO/Ag2CO3/Ag2O using response surface methodology (RSM) based on the central composite design (CCD). The individual and interaction effects of the most effective variables, such as applied voltage (6.5, 8 and 9.5 kV), nozzle-collector distance (10, 12.5 and 15 cm) and ZnO/Ag2CO3/Ag2O photocatalyst concentration (0.1, 0.8 and 1.5 g), have been evaluated on the porosity response of the nanofiber. The analysis of variance (ANOVA) confirmed that the spinning voltage was the main variable affecting the average porosity of the composite PVDF nanofiber. The regression coefficient between the variables and the mean porosity (R2= 0.8321) indicates acceptable evaluation of experimental data by quadratic polynomial regression. -
PublicationEffect of zinc addition on the performance of aluminium alloy sacrificial anode for marine application( 2017-09-26)
;Khan B. ;Rosli M.U. ;Rahim W.M.In this work, the effect of zinc addition on the performance of aluminum-based sacrificial anode in seawater was investigated. The parameters used in assessing the performance of the cast anodes are anodic efficiency, protection efficiency and polarized potential. The content of zinc in the anodes was varied after die casting. The alloys produced were tested as sacrificial anode for the protection of mild steel for marine application at room temperature. Factors such as reactivity of zinc particles in the seawater, corrosion activity during the period of experiment, pH of seawater and the electronegativity potential of zinc were collected for analysis. Overall findings shows addition of zinc increases rate of corrosion to the sacrificial anode and the protection offered by the sacrificial anodes measured and collected in PIT shows the seawater react to sacrificial anode and no porosity reaction between the anodes. The microstructure showed the intermetallic structures of β-phase which breakdown the alumina passive film, thus enhancing the anode efficiency. -
PublicationEffect of heat sink design on the thermal characteristic in computational fluid dynamics analysis( 2020-12-18)
;Ishak M.I. ;Kee W.C. ;Rosli M.U.The thermal management in the electronic device or system using the heat sink is important to ensure the device or system operating under the allowable temperature. The present study aims to investigate the thermal characteristic (i.e., temperature distribution) of the various heat sink designs via computational fluid dynamics (CFD) analysis. The electronic cooling process of the heat sink is carried out via CFD software. The temperature distribution of the various heat sink designs (i.e., plate fin, circular pin fin and rectangular fin) was analyzed and compared. The CFD analysis revealed the plate fin heat sink has lowest temperature distribution on the fin region. High temperature distribution was observed on the pin fin heat sink. The non-uniform temperature distribution was attributed by the direction of inlet airflow, whereas the low temperature was found in the region that close to the inlet airflow. Thus, the research findings indicated the design of heat sink significantly affects the temperature distribution during the electronic cooling process. -
PublicationThe emergence of adsorptive membrane treatment for pollutants removal – A mini bibliometric analysis study( 2023-01-01)
;Adam M.R. ;Hubadillah S.K. ;Abd Aziz M.H.Owing to its toxic and cancer-causing consequences on living organisms, water pollution has garnered worldwide attention. As a result of the severe global drinking water shortages caused by the presence of several contaminants in water sources, a variety of treatment methods have been developed. Among accessible removal methods, adsorptive removal by adsorbents including metal–organic frameworks (MOF), metal oxide, carbon-based substances, and zeolite has garnered a great deal of interest because of their abundance of functional groups, relatively large surface area, great chemical and thermal resistance, and excellent adsorption efficiency. Due to their outstanding efficacy and proficiency in the water treatment process, adsorptive membranes are regarded as one of the most advantageous and promising solutions for wastewater reuse technologies. The combination of adsorption and membrane filtration processes, which are characterized by rapid adsorption–desorption volumes, relatively low diffusion impedance, and high flow rates, has garnered considerable interest in recent years. In this study, a bibliometric analysis was undertaken to utilize the Scopus database to find and appreciate the global current status of research on the adsorptive membranes process based on four principal analyses: growth patterns, keyword co-occurrence, topic area, and most cited references. Using the VOSviewer program, a total of 276 Scopus article records published between 1973 and 2021 were extracted and used as input for bibliometric analysis. Since 2016, there have been a large number of articles on adsorptive membranes, and by 2020 there will have been around 40 publications. On the basis of keywords, the principal topics of study in adsorptive membranes may be divided into three clusters: adsorption, membrane studies, and adsorption performance. These bibliometric data provide researchers and business professionals interested in the technology of adsorptive membranes with helpful resources and information on the current research directions of adsorptive membranes. -
PublicationThe effect of torrefaction reaction temperature on the Elaeis Guineensis Empty Fruit Bunch (EFB) pellet durability and calorific value( 2020-12-18)
;Leng L.Y. ;Rahman A.A.A. ;Dali J.A.A. ;Yee K.C.Empty Fruit Bunch (EFB) are not being fully utilized for energy production due to its high moisture content, low density, having bulky characteristics and low calorific value. In order to improve characteristic of Elaeis Guineensis empty fruit bunch as fuel, pre-treatment process is necessary to overcome these shortcomings. Therefore, the aim of this research is to examine the effect of torrefaction reaction temperature on the Elaeis Guineensis pellet energy characteristics. The observed pellet qualities include the pellet durability and calorific value of the pellet. The torrefaction of empty fruit bunch was conducted in a fixed-bed reactor at 200 C, 220 C, 240 C and 260 C. The torrefied sample was pelletized, analysed and tested to examine the characteristics of empty fruit bunch biomass as fuel. The pelletization process was carried out by using the cold single press pelletizer and using cassava starch as binder. At higher torrefaction temperature, the decomposition of cellulose and lignin become more prominent. At the torrefaction temperature 260 C, the gross calorific value is the highest due to the removal of moisture, release of volatile matter and the decomposition of biomass components such as hemicellulose, cellulose and lignin which resulted in energy densification. By comparing the torrefied empty fruit bunch at 260 C with the untorrefied empty fruit bunch, it was found that the torrefaction increased the energy densification and pellet qualities of empty fruit bunch that can be utilized as biomass energy sources in renewable energy. -
PublicationPerformance study of hydroxyapatite cow bone based polysulfone mixed matrix membrane: Effect of hydroxyapatite morphology( 2021-10-25)
;Rasman S.N.S. ;Kamarudin S.N. ;Hubadillah S.K. ;Pauzan M.A.B.Othman M.H.D.In this work, polysulfone (PSf)/ hydroxyapatite (HAp) ultrafiltration mixed matrix membranes (MMMs) were prepared for wastewater treatment by using phase inversion method. The effect of hydroxyapatite (HAp) dispersion on the PSf/PVP membrane surface were investigated. Characterizations were done to observe the distribution of HAp on the membrane surface by using X-ray diffractometer (XRD) and scanning electron microscope (SEM). The XRD analysis showed the crystallinity of the HAp derived from cow bone. The dispersion of HAp in polymer matrix is a promising materials that can change the structure of the PSf membrane. -
PublicationMechanical and physical properties of khaya senegalensis solid fuel pellet with different binder percentages( 2021-10-25)
;Shaari A.R. ;Rahim M.S.b.A.The characteristics of the solid fuel pellets, such as its strength, durability and density can be used to assess its quality. During the transport and storage, pellets with low strength and durability produces dusts and ultimately resulting in equipment blockage, high pollution emissions, and an increased risk of fire and explosion. Therefore, pellet manufacturing process should be given priority to improve pellet quality. The use of binder in the production of pellets will aid in improving pellet quality. Therefore, this study investigates the influence of different binder percentages on the mechanical properties of K. senegelensis fuel pellets. Durability, unit density, bulk density and diametral compressive strength testing were carried out in compliance with international standards. It was discovered that pellets containing 4% cassava starch binder produces better results, particularly in terms of durability and compressive ldiametral strength. -
PublicationConceptual design and computational analysis of traditional boat passenger seat( 2020-11-02)
;Hasbullah M.H. ;Zakaria N.A. ;Nordin N.Deraman A.S.Todays, there are various of optimisation methods that have been studied by many researchers in order to find the appropriate combination of processing parameters setting in the injection moulding process. From the previous literatures, the optimisation works have been proven will improve the moulded part quality. In this study, the application of optimisation work to improve warpage of front panel housing has been explored. By selecting cooling time, coolant temperature, packing pressure and melt temperature as the variable parameters, design of experiment (DOE) have been constructed by using the rotatable central composite design (CCD) approach. Response Surface Methodology (RSM) was performed in order to define the optimal processing parameters setting which will optimise the warpage condition. Based on the results, melt temperature is the most significant factor contribute to the warpage condition and warpage have optimised by 47.1% after optimisation. The findings show that the application of optimisation work offers the best quality of moulded part produced. -
PublicationEffect of twist blade distributor on velocity distribution in a swirling fluidized bed( 2020-12-18)
;Ishak M.I. ;Rosli M.U. ;Suhaida Rasman S.N.Swirling Fluidized Bed (SFB) is one of the liquid-solid interaction in fluidization improved from conventional systems. This system is usually viewable in the power generation, chemical industry, material production and drying processes. Inside the SFB, there is annular blade distributor which will cause the air to pass through and create a swirl motion on the bed. The energy consumption of a fluidized bed system depends on the distributor's design. The current study has purpose a new design that applies to existing designs of blade inclination angle. The simulation study was conducted using Computational Fluid Dynamics (CFD) to obtain the result of velocity distribution and pressure drops on various blade distributor designs. This study uses two (2) twist angle (80 and 100 ) via number of blade distributor (40, 50 and 60). In this study, tangential velocity is the main velocity component by reason of the velocity represents the rotating air velocity in fluidization system. Overall, the design of the 100 twist angle and 40 blades distributor are the best distributors of blades compared to others.