Show simple item record

dc.contributor.authorSritunyakorn, Siwakornen_US
dc.contributor.authorศิวกร ศรีธัญญากรen_US
dc.contributor.authorSuluksna, Keeratien_US
dc.contributor.authorกีรติ สุลักษณ์en_US
dc.contributor.authorChitsomboon, Tawiten_US
dc.contributor.authorทวิช จิตรสมบูรณ์en_US
dc.date.accessioned2021-08-07T07:05:14Z
dc.date.available2021-08-07T07:05:14Z
dc.date.issued2021-08-07
dc.identifier.issn2651-1096
dc.identifier.urihttp://repository.rmutp.ac.th/handle/123456789/3602
dc.descriptionวารสารวิชาการและวิจัย มทร.พระนคร, ปีที่ 14, ฉบับที่ 2 (ก.ค.-ธ.ค. 2563), หน้า 183-197en_US
dc.description.abstractThis research developed a new model to determine the moisture diffusion coefficient for the thin-layer paddy drying with the spouted free-fall bed dryer. The design and construction of the dryer was done to experiment with the drying kinetics. The experiment has studied under conditions of hot air temperature of 60-150 °C, the initial paddy mass of 5 - 15 kg and hot air velocity of 19 m/s. The results showed that the higher hot air temperature and the lower initial paddy mass resulted in a significant reduction in drying time. The experimental results were used to calibrate 12 of the most popular thin-layer drying models to find a suitable one, considering based on the root mean square error (RMSE), chi-squared value (χ2) and the correlation coefficient (r). It was found that the popular thin layer drying model was able to accurately predict the effect of the moisture ratio, considering both the influence of hot air temperature and the initial paddy mass, in linear models. The highest accuracy was RMSE = 0.0279, χ2 = 0.00084 and r = 0.9938. In addition, the experimental results have been used to synthesize the new diffusion moisture coefficient, which is a function of initial paddy mass, temperature and drying time. This developed model was based on an exponential function with only 7 model constants. The simulated results observed that the new model achieved the average error only 1.8 percent compared with the best model that uses up to 24 model constants.en_US
dc.description.sponsorshipRajamangala University of Technology Phra Nakhonen_US
dc.language.isothen_US
dc.subjectDryingen_US
dc.subjectการอบแห้งen_US
dc.subjectmodelmakingen_US
dc.subjectแบบจำลองen_US
dc.subjectDrying apparatusen_US
dc.subjectเครื่องอบแห้งen_US
dc.titleDiffusion coefficient modelling of thin-layer drying of paddy using spouted free fall bed dryeren_US
dc.title.alternativeแบบจำลองสัมประสิทธิ์การแพร่ความชื้นสำหรับการอบแห้งชั้นบางของข้าวเปลือกด้วยเครื่องอบแห้งแบบเป่าพ่นหล่นอิสระen_US
dc.typeJournal Articlesen_US
dc.contributor.emailauthorkeerati@sut.ac.then_US
dc.contributor.emailauthorarit@rmutp.ac.then_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record