Munira Mohamed Nazari
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Munira Mohamed Nazari
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Munira, Mohamed Nazari
Alternative Name
Nazari, Munira Mohamed
Nazari, M. M.
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Scopus Author ID
57208666045

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  • Publication
    Effect of torrefaction process on the physicochemical properties of solid fuel from palm kernel shells
    ( 2024-07)
    Munira Mohamed Nazari
    ;
    Nur Syafiqah Mansor
    This research investigates the effects of torrefaction on the characteristics of solid fuel made from palm kernel seed (PKS). The torrefaction process was conducted on raw PKS to improve its energy density and combustion efficiency. Torrefaction was carried out at 400°C at different durations (30, 40, and 50 minutes), with the goal of improving the energy density and combustion efficiency of raw PKS. The torrefied PKS was then ground and sieved into particle sizes of 150μm and 300μm. After being blended with high-density polyethylene (HDPE), the torrefied PKS was compacted using hot press machine into solid fuel and tested for its physicochemical properties. The results indicated that PKS torrefied for 50 minutes with particle size of 300 μm exhibited optimal characteristics, with a high heating value (HHV) of 23.22 MJ/kg. The particle size plays a role, with finer particles (150μm) having lower HHV values compared to coarser particles (300μm). Additionally, the inclusion of HDPE affected the properties of the solid fuel. Morphological analysis using scanning electron microscopy provided insights into its structural features.
  • Publication
    Carbonization effect on EFB briquettes prepared with different type of binders
    (IOP Publishing, 2020)
    Munira Mohamed Nazari
    ;
    M Y Idroas
    ;
    Fathin Ayuni Azizan
    Biomass energy is gaining public interest as a result of the environmental impacts and depletion of fossil fuel resources. Thus, biomass briquettes have emerged as an attractive option due to its huge renewable energy potential. The biomass briquettes are used for thermal applications because it can produce complete combustion as it has consistent quality and high burning efficiency. However, the quality of the briquettes can be added by application of carbonization treatment method. Carbonization of biomass is a waste treatment process in which a biomass is heated in an oxygen-free or oxygen-limited environment. In this study, carbonized EFB was blended with binders and densified into briquettes. The mixing ratio of binders to carbonize EFB were fixed at 20%. The effect of the carbonization treatment on the briquette properties and combustion characteristics was studied through proximate and ultimate analysis while high heating value (HHV) was analyses by using bomb calorimeter. To explore the potential of carbonized EFB briquettes, the results were compared to untreated EFB briquettes. Results indicate briquette TS2 as the optimum formulation since it owned moderate physicochemical properties. In addition, the briquette had highest HHV of 23.62 MJ/kg which is approximately 30% higher than briquette prepared from untreated EFB. Overall, carbonized EFB blended with tapioca starch was found to improve the briquette quality and enhance the possibility to use as syngas production.
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