Sriseubsai, Wipoo

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Preferred name
Sriseubsai, Wipoo
Alternative Name
Sriseubsai, W.
Main Affiliation
Email
wipoo.sr@kmitl.ac.th

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    Item type:Publication,
    Robust design of PC/ABS filled with nano carbon black for electromagnetic shielding effectiveness and surface resistivity
    (2020-05-01)
    Sriseubsai, Wipoo
    ;
    Tippayakraisorn, Arsarin
    ;
    Lim, Jun Wei
    This study focuses on the electromagnetic interference shielding effectiveness (EMI SE), dissipation of electrostatic discharge (ESD), and surface resistivity of polymer blends between polycarbonate (PC) and acrylonitrile-butadiene-styrene (ABS) filled with carbon black powder (CBp) and carbon black masterbatch (CBm). The mixtures of PC/ABS/CB composites were prepared by the injection molding for the 4-mm thickness of the specimen. The D-optimal mixture design was applied in this experiment. The EMI SE was measured at the frequency of 800 and 900 MHz with a network analyzer, MIL-STD-285. The result showed that the EMI SE was increased when the amount of filler increased. The surface resistivity of the composites was determined according to the ASTM D257. It was found that the surface resistivity of the plastic with no additives was 10<sup>12</sup> Ω/square. When the amount of fillers was added, the surface resistivity of plastic composites decreased to the range of 10<sup>6</sup>-10<sup>11</sup> Ω/square, which was suitable for the application without the electrostatic discharge. The optimization of multi-response showed using high amounts of PC and CB was the best mixture of this research.
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    Item type:Publication,
    Correction to: Robust Design of PC/ABS Filled with Nano Carbon Black for Electromagnetic Shielding Effectiveness and Surface Resistivity (Processes, (2020), 8, 5, (616), 10.3390/pr8050616)
    (2024-11-01)
    Sriseubsai, Wipoo
    ;
    Tippayakraisorn, Arsarin
    ;
    Lim, Jun Wei
    With this correction, the Editorial Office together with the authors are making the following amendments to the published article [1]: Both Materials and Methods (Section 2) and Results and Discussion (Section 3) were revised. References 4–11 have been replaced with appropriate ones. With this correction, the order of some references has been adjusted accordingly. The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.
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    Simulation and optimization of anaerobic co-digestion of food waste with palm oil mill effluent for biogas production
    (2021-12-01)
    Tiong, Jasmine Sie Ming
    ;
    Chan, Yi Jing
    ;
    Lim, Jun Wei
    ;
    Mohamad, Mardawani
    ;
    Ho, Chii Dong
    Food waste (FW) utilized as substrate for anaerobic digestion (AD) to produce biogas is promising. Simultaneously, waste is handled and value-added products such as biogas and fertilizer are produced. Palm oil mill effluent (POME) is used as the co-substrate. This study aims to simulate the complete process flow of anaerobic co-digestion (AcoD), consisting of pre-treatment of feedstock, biogas upgrading, wastewater treatment and sludge dying using SuperPro Designer. Parameters, namely hydraulic retention time (HRT), recycle ratio of sludge, water to FW ratio (kg/kg) and co-substrate to FW ratio (kg/kg), would affect the performance of digester. The optimization of these parameters is performed using Design-Expert software, involving response surface methodology (RSM). The effects on responses such as methane flow, chemical oxygen demand (COD) and volatile solid (VS) removal efficiencies are analyzed. In treating 25,000 kg/h of feed, the optimized values for HRT, recycle ratio, water to feedstock ratio, POME to FW ratio are 37.2 days, 0.381, 0.027 and 0.004, respectively. The methane yield is 0.30 L CH<inf>4</inf>/g of COD removed, with COD and VS removal efficiencies of 81.5% and 68.9%, respectively. The project is profitable, with a payback period of 6.14 years and net present value (NPV) of $5,680,000. A comprehensive understanding of AD matures it for commercialization purposes.