Rectangular bales of hay measuring 35 x 46 x 84 cm baled to a density ranging from 145 to 172,4 kg/m$ sp3$ were dried on a dryer which can contain 4 300 bales for a total weight of approximately 130 tons. A 1,2 meter fan activated by a 60 kw L.P. Gaz engine insured an air flow of 840 m$ sp3$/min at 625 Pa of static pressure. This research has clearly demonstrated that approximately 50% of the drying air flowed between the bales placed on the dryer. By increasing the flow of air, the drying rate of the bales of hay was also increased. The results obtained prove of the effect of both temperature and relative humidity of the air on drying capacity. Finally, the dryer was more efficient when ten (10) rows of bales were dried at one time rather than 5. It would be desirable to develop a mathematical model to produce a computer simulation of drying applied to bales of hay. Efficient strategies to improve drying procedures of densely baled hay could thus be developed.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.60522 |
| Date | January 1991 |
| Creators | Guertin, Léon. |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | French |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Agricultural Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001245431, proquestno: AAIMM72090, Theses scanned by UMI/ProQuest. |
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