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Evaluation of Phase Change Materials (PCMs) Applications in a Small Scale Solar Dryer by Using Mathematical Model |
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| รหัสดีโอไอ | |
| Creator | Supapad Malasai |
| Title | Evaluation of Phase Change Materials (PCMs) Applications in a Small Scale Solar Dryer by Using Mathematical Model |
| Contributor | Supapad Malasai, Kanyarat Holasut, Thanya Chanprasopchai |
| Publisher | Siam Technology College |
| Publication Year | 2561 |
| Journal Title | Journal of Technology and Innovation in Tertiary Education Siam Technology College |
| Journal Vol. | 1 |
| Journal No. | 2 |
| Page no. | 11-23 |
| Keyword | Solar dryer, Phase Change Material (PCM), charging/discharging period, retaining time, the rate constant (k ), Mathematical modeling for PCM |
| URL Website | http://jti.siamtechno.ac.th |
| Website title | http://jti.siamtechno.ac.th |
| ISSN | 2630-0540 |
| Abstract | Solar dryers have been developed for drying agriculture products as preserved food. The sun's irradiation generates heat energy to drive moisture out of the products. However, the effectiveness of solar dryers is dependent on sunlight availability during the day which in turn is seasonal. The temperature inside the solar dryer is sensitive to weather conditions. The researchers did not only use Phase Change Material (PCM) to store and retain the heat during charging cycle, but also maintained suitable temperature inside the dryer during discharging cycle for a longer period of time after sunset. There are two key parameters related to the required performance of the solar dryer during charge and discharge periods: the rate constant and the retaining time . Since is very sensitive to how the PCM is used, the researchers investigated the suitable composition of PCM and the quantity of PCM used in the solar dryer to meet the performance targets established for the study. They used mathematical modeling based on the first order equation to determine the suitable composition and amount of PCM in a small scale solar dryer to achieve overall performance targets. The results on evaluation of PCMs applications in a small scale solar dryer with the use of a mathematical model were reported in this paper. |
