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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Kinetics and Temperature Dependent Moisture Diffusivities of Pumpkin Seeds During Drying) ผู้เขียน: ดร.วีรเชษฐ์ จิตตาณิชย์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractPumpkin seeds were soaked in 25% w/w NaCl solution for 1 h before hot-air drying with a tray dryer or a fluidized bed dryer (FBD) at drying temperatures of 60, 70 and 80?C. The FBD was operated at an air velocity of 1.8 m/s and a bed depth of 3 cm, whereas the seeds were dried as a single layer in the tray dryer with the air velocity over the sample in the range 0.23–0.28 m/s. The experimental data was fitted into four thin-layer drying models namely the Page, Lewis, Wang and Singh, and two-compartment models. The drying rate constants and coefficients of the models tested were determined by non-linear regression analysis. Among the various models, both the Page model and two-compartment model were the best-fit models for the three drying conditions. Effective moisture diffusivities of pumpkin seeds determined by applying Fick’s second law of diffusion and the method of slope ranged between 7.69 ? 10-11 and 50.96 ? 10-11 m2/s. The temperature dependence of the effective moisture diffusivity followed an Arrhenius relationship with the activation energies between 15 and 62.12 kJ/mol. |
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ผลงานตีพิมพ์ในวารสารวิชาการStudy of Mathematical Models in Hot Air Drying of Herbs in Herbal Compress Ballผู้แต่ง: Wongpanit, B., Chotikamas, S., Dr.Supacharee Roddecha, Assistant Professor , Tantayotai, P., Sriariyanun, M., วารสาร: 
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Researcherดร. ศุภพัชรี รอดเดชา, ผู้ช่วยศาสตราจารย์ที่ทำงาน:ภาควิชาวิศวกรรมเคมี คณะวิศวกรรมศาสตร์ สาขาที่สนใจ:Synthesis and characterization of advanced material for anhydrous proton conducting membranes;, Development of new method to improve ionic conductivity and mechanical properties of polymer electro, Electrochemistry and electrochemical instrumentation Resume |
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