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- Title
Comparative Performance Evaluation of PVT Assisted Dryer And Conventional Solar Thermal Dryer In Drying of Tomatoes ( Lycopersicon Esculentum).
- Authors
Ganda, Yusuf Mohammad; Danshehu, Bagudu Gwadangwaji; Mohammed, Aminu Bayawa; Garba, Mahmoud Mohammed; Ahmad, Bilyaminu Rafi
- Abstract
Drying is an essential post-harvest preservation method for agricultural produce. Since drying is an energy absorbing process, farmers need to have access to effective dying techniques in order to maintain the quality of the products and maximize their profit. Hence, A Solar hybrid (PV/T) assisted dryer was designed, constructed and evaluated for drying of Tomatoes (Lycopersicon Esculentum). The load test drying efficiency of Solar Hybrid (PV/T) dryer was compared to Conventional Solar Thermal Dryer. The daily average moisture content reduction of tomatoes was 0.47g±0.169 while Solar thermal showed average reduction of 0.437g±0.188 for 35 and 37 hours respectively. The result of- t-test revealed there was no significant difference in the daily average drying rate between the hybrid (PV/T) and Solar thermal dryer. The results from the three models indicated moisture content reduction on daily basis shows that polynomial model has the highest (R²=0.9937, R²=0.9975) value and this implies that the average daily moisture content reduction of tomatoes for hybrid (PV/T) and solar thermal dryer were best described by polynomial model. The result of the proximate analysis conducted for the dried tomatoes sample using (PV/T) hybrid dryer and Solar thermal dryer indicated that ash content (5.3%), moisture content (13.31%), lipid (0.87), protein (8.87%), fiber (5.48%) 'was significantly lower in sample dried with solar thermal dryer, while the lipid content (0.64%) and available carbohydrates (62.3%) are lower in tomato dried with Solar thermal dryer. The mycology test conducted for the fresh and dried tomatoes samples revealed the presence of the following fungi; S. cireviceae, S. Pombe, F. oxyspurum and F. solani with highest frequency of occurrence of S. solani (28%) and S. Pombe with lowest (3.96%) respectively. The collection efficiency of the dryer on drying of 4kg tomato sample was 42.49 %, pickup efficiency 36.89% and System efficiency 5.63%. The result obtained showed that PVT hybrid dryer is better option for drying compared to solar thermal dryer.
- Subjects
TOMATO drying; PREVENTION of postharvest crop losses; PROFIT maximization; MYCOLOGY; ENERGY absorption films
- Publication
International Journal of Science for Global Sustainability (IJSGS), 2023, Vol 9, Issue 3, p59
- ISSN
2488-9229
- Publication type
Article
- DOI
10.57233/ijsgs.v9i3.529