Chaishome, Jedsada
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Preferred name
Chaishome, Jedsada
Alternative Name
Chaishome, J.
Main Affiliation
Email
jedsada.ch@kmitl.ac.th
14 results
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Item type:Publication, Effects of heat transfer surface temperature on liquid egg yolk fouling(2024-01-01); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Optimal Design and Installation of Solar Rooftop for Thai government building(2025-01-01); ; This research presents an approach for installing grid-connected solar cells on the rooftops of a prototype building in Thailand to offset electricity consumption, aligning with TOU electricity pricing. It includes design methods, energy-saving calculations, and illustrates the savings from solar cell installation over a one-year period, without accounting for solar cell deterioration or system loss charges. The study compares the concept of installing solar cells on the rooftop based on the building's electricity usage characteristics, distinguishing between installing solar cells across the entire rooftop area and according to the building's electricity usage behavior during daytime and working days, ensuring minimal electricity remains while still being sufficient for use. Furthermore, it calculates the comparison before and after installation to provide information for rooftop installation on the prototype building. The research results indicate that installing solar cells across the entire rooftop area can save electricity costs up to 550,000 THB per year.3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Polylactic acid (PLA) based green composites reinforced pineapple leaf fibres: Evaluation of processing and tensile performance(2018-08-14); This paper reports on a study of the compression moulding and the vacuum forming of unidirectional pineapple leaf fibres/polylactic acid composites and the influence of process variables on the tensile properties of the material. The characterisation of the micro and meso structures of the pineapple leaf fibres is reported. The effect of consolidation temperature on the fibre thermal stability and the tensile properties of the composites is investigated. The results show that vacuum forming was found to be preferable process with high stiffness modulus and UTS of the composites, compared to compression moulding. The insignificant detrimental effect of 165°C high consolidation temperature was observed. Finally, the fibre thermal degradation seems to dominate the composite tensile performance over its interfacial quality between the fibre and the matrix.1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The influence of alkaline treatment on thermal stability of flax fibres(2017-04-25); Rattanapaskorn, S.The paper pursued the hypothesis that alkaline treatment removed hemicellulose and pectin from the flax fibres, the fibre thermal stability will be improved. The use of plant fibres as reinforcement in thermoplastic composites comes with the detrimental effect of thermal degradation on the tensile performance of fibres and composites, particularly during long consolidation times at high temperature. SEM was used to observe the treated fibre surface. The micrographs show that the treatment with a higher concentration of NaOH solution results in a more obviously rough fibre surface. Moreover, FTIR and TGA were used to examine the chemical decomposition and thermal stability, respectively. The spectra of treated materials indicate that both hemicellulose and pectin were dissolved from the fibre surface following treatment. Finally, TGA results revealed that the loss of mass belonging to hemicellulose and pectin in treated fibres results in a shift of the main degradation temperature to higher temperature.2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Inspection of Heat Seal Packing Bag Integrity Using Thermal Images With YOLO Algorithm(2025-01-01); ; This paper presents an inspection of heat seal packing bag integrity using thermal imaging with a deep learning technique. The performance was evaluated by comparing the object detection rates obtained from the YOLOv4-Tiny Algorithm and the Convolutional Neural Network (CNN) technique. Two sets of completely sealed and failure-sealed packaging bags were prepared for the training (100 bags) and testing (100 bags) of the models. Some sample bags containing tomato sauce inserted between the seals represent a failure-sealed condition. The integrity of the heat seal packaging bag was analyzed by examining the differences in color shade patterns of the thermal images. As a result, the YOLOv4-Tiny model achieved a detection accuracy of 98.80%, significantly outperforming the CNN technique, which detected only 78.40%, while using the same dataset; additionally, the time required for detection and training was faster.1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Tensile properties of PLA/PBAT blends and PLA fibre-reinforced PBAT composite(2018-08-14); 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Development of Mathematical Model to Predict Soymilk Fouling Deposit Mass on Heat Transfer Surfaces Using Dimensional Analysis(2023-04-01); ; ; Schleining, GerhardThe formation of fouling deposits on heat exchanger surfaces is one of the major concerns in thermal processes. The fouling behavior of food materials is complex, and its mechanism remains, in general, unclear. This study was aimed at developing a predictive model for soymilk fouling deposit formed on heated surfaces using dimensional analysis. Relevant variables affecting fouling deposit mass could be grouped into six dimensionless terms using Buckingham’s pi-theorem. Experimental data were obtained from a lab-scale plate heat exchanger. A simple model developed using the experimental data under the process conditions with the product inlet temperature, the product outlet temperature, and plate surface temperature in the ranges of 50–55 °C, 65–70 °C, and 70–85 °C, respectively, exhibited a good performance in the prediction of soymilk fouled mass. The correlation coefficient between the predicted and experimental values of fouled mass was 0.97 with an average relative error of 9.03%. Within the ranges of product inlet temperature and plate surfaces temperature studied, this model offers an opportunity to estimate soymilk fouling mass with acceptable accuracy.1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Alleviation of internal browning in queen pineapple fruit by peduncle infiltration with solutions of methyl jasmonate during cold storage(2019-01-01); 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effect of alkaline treatment on decomposition temperature of fibres from empty oil palm bunch(2019-01-01); —This article reports an investigation of the decomposition temperature of fibres from empty oil palm bunch to achieve improved understanding of the processing temperature limitation of this fibre as reinforcement for thermoplastic composite manufacturing. The effect of alkaline treatments on their chemical decomposition and sample weight changes were performed, using fourier transform infrared spectrometry (FTIR) and thermogravimetry (TG) techniques. The results show that the hemicellulose removal of fibres after treatment is a factor that provides an advantage on the thermal stability of the fibres. Both initial decomposition temperature (T<inf>0</inf>) and maximum decomposition temperature (T<inf>max</inf>) are minor increase. This could reduce the detrimental effect of thermal degradation on the single fibre performance and leads to shift its consolidation temperature ceiling from below 221<sup>o</sup>C (untreated fibres) to 243<sup>o</sup>C (5% NaOH treated fibres) during composite consolidation.1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The influence of alkaline treatment of plant fibres on tensile properties of single fibres and composites(2017-01-01); Rattanapaskorn, S.The hypothesis pursued in this work is that by removing hemicellulose and pectin from plant fibres by alkaline treatment, the fibre tensile performance could be improved. Flax fibres were examined as reinforcement. The highest ultimate tensile strength (UTS) resulted for fibre treated with 3% by weight of NaOH solution (up to 12% increase in UTS and 18% increase in Young’s modulus, compared to untreated fibres). A 15% reduction in cross-sectional area of the fibres was observed. Tensile performance of treated (a percentage of fibre volume fraction (V<inf>f</inf> %) of 30%) and untreated (V<inf>f</inf> % of 34%) fibre reinforced polypropylene composites manufactured by the vacuum forming process, were compared. A decrease of UTS and Young’s modulus of the treated material was observed with an increase in consolidation time. The UTS of the treated material was 3.82% lower than that of the untreated material.1