Murathathunyaluk, Siripan

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Preferred name
Murathathunyaluk, Siripan
Alternative Name
Murathathunyaluk, S.
Main Affiliation
Email
siripan.mu@kmitl.ac.th

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    Item type:Publication,
    Shelf Life Evaluation of Instant Pasta in Two Different Packaging.
    (2019-10-25)
    Murathathunyaluk, S.
    ;
    Jindawanich, P.
    The objective of this study is to evaluate shelf life of instant pasta which had been packed in two different packaging, type I is an OPP/MCPP sachet and type II is an OPP/CPP sachet, under accelerated condition (37°C, 85%RH) for 12 weeks. There were 2 index which were used to evaluate the shelf life, one was sensory tests and another one was moisture content in pasta. Assessed by sensory tests, the shelf life of instantly cooked pasta packed in type I and type II sachet, were revealed more than 12 weeks and equal 12 weeks, respectively. Likewise, the shelf life predicted on the basis of moisture sorption isotherm and water permeability of packaging material, were estimated at 119 and 46 days in OPP/MCPP and OPP/CPP sachets, respectively. According to these results, the quality changing of instant pasta measured during storage suggested that OPP/MCPP sachet had better protectively effect than the OPP/CPP sachet.
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    Item type:Publication,
    Development of rotating tray dryer and study of the hot air flow pattern with computational fluid dynamics
    (2015-01-01)
    Murathathunyaluk, Siripan
    ;
    Srisakwattana, Nitika
    ;
    Saksawad, Treenuch
    ;
    Bumrungthaichaichan, Eakarach
    Rotating tray dryer has the advantages over Cabinet dryer when we compare them, which is the end product from drying procedure has more regularity of moistness after the procedure. A new tray dryer with three rotating trays was designed, constructed and evaluated to find the optimal pattern for inputting hot air into the chamber. Three experiments to supply hot air were investigated. First, hot air flows in lower inlet tube with and without tray rotation. The comparison on hot air ratio with tray rotation was made by varying the ratio of air flow rate though three wall-side tubes at 0:0:100, 20:20:60 and 30:30:40 (upper: middle: lower). The optimal ratio was found to be 30:30:40. Next, this optimal ratio was used to compare the drying efficiency between entering hot air through one-way inlet with tray rotation (rotating tray) and entering hot air through two-way inlets without tray rotation (stationary trays). The optimal pattern for entering hot air is two-way inlets of hot air with stationary trays at the ratio of 30:30:40. This setting was used for drying of mulberry and measuring total phenolic compound (TPC) in dried mulberry. After drying process, the quantities of TPC in each tray were not significantly different. Furthermore, the optimal condition is used to study the temperature profile with simulation program (Computational Fluid Dynamics, CFD) and the results from CFD are correlated with the experiments.
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    Item type:Publication,
    Effect of regeneration conditions on dehumidification desiccant packed bed
    (2019-01-01)
    Murathathunyaluk, Siripan
    ;
    Junjiewchai, Jarukit
    ;
    Kitchaiya, Prakob
    In the present study, dynamic performance of a dehumidification desiccant regeneration system has been investigated theoretically. The simulation of the combined heat and mass transfer that occur in a solid desiccant packed bed is carried out with MATLAB. The presented model takes into account only forced convection along the bed without heat conduction and heat loss across the wall. The simulated results are validated with the previous published studies. Using the explicit finite differential numerical method, the performances of dehumidification systems are presented by moisture removal capacity (MRC). The dynamic systems have been studied at the regeneration temperatures between 60 to 120 °C and air flow ratio between 0.2 to 2. Increasing the regeneration temperature and the regeneration air flow ratio are shown to have positive effect to MRC. However, excessively increase these values leads to the constant of MRC. Therefore, optimum values for these manipulated parameters has been examined. The result of this study help reducing heat consumption for regenerating heated air; as well as, reducing electric consumption used by the fan.