Development of an Automated Water Hyacinth Dryer for Handicraft Production
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Copyright (c) 2024 Reinalyn V. Viaña, Wendy C. Mateo, Jonathan Fabula, Elmar M. Villota
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Abstract
An automated water hyacinth stalks dryer was developed as a means of addressing the issues brought on by the widespread distribution of water hyacinth in bodies of water as well as the issues encountered during the drying of the crop using sun drying and the existing DOST-FPRDI dryer. When compared to the current methods of drying water hyacinth stalks, this developed dryer has a significant advantage because it encloses the stalks in the drying chamber, protecting them from insect and pest infestation. Additionally, because the dryer is automatically controlled, it provides the ideal environmental conditions for drying the said stalks, resulting in higher-quality dried products. The main components of the dryer are drying chamber, heating element, blower/fan, and control panel Prior to final testing, the dryer was subjected to a no-load test. Centralized Composite Design experimental design represented the design of experiments that resulted to 13 drying treatments. The blower was tested at fan speeds of 90, 91.46, 95, 98.54 and 100 CFM, while the heater (5.4 kW) was tested to produce 70℃, 72.92℃, 80℃, 87.07℃ and 90 ℃. Trial run number 5 got the highest drying efficiency of 55.249% with a drying rate of 29.674 g/min and a moisture ratio of 9.702. ANOVA test revealed that drying temperature greatly affects the drying rate, moisture ratio, and drying efficiency , while airflow rate only significantly affects drying rate. Run 13 got the highest drying rate of 29.674 g/min while Run 1 got the lowest drying rate of 19.348 g/min; for moisture ratio, the highest value was 9.70 obtained at run number 13 also while the lowest moisture was 3.03 attained at run number 12; for drying efficiency, highest drying efficiency was 59.23% obtained at run number 5, while lowest drying efficiency 18.28% obtained at run number 12. These findings show that the higher the drying temperature and airflow rate the higher the drying rate, moisture ratio and drying efficiency. In addition, a techno-economic evaluation of the developed system and an economic analysis of the automated dryer were conducted, the results showed that the system is highly viable, feasible, and economical with a break-even point and payback period of 197,777 stalks and 7 months, respectively.
Keywords
Break-even, CCD, Economical, PaybackReferences
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Copyright (c) 2024 Reinalyn V. Viaña, Wendy C. Mateo, Jonathan Fabula, Elmar M. Villota
This work is licensed under a Creative Commons Attribution 4.0 International License.
