Improving energy efficiency and developing an air-cooled grate for the downdraft rice husk furnace

cg.identifier.doihttps://doi.org/10.1016/j.renene.2017.09.012en
cg.issn0960-1481en
cg.journalRenewable Energyen
cg.volume115en
dc.contributor.authorVan Hung, Nguyenen
dc.contributor.authorQuilloy, Reianneen
dc.contributor.authorGummert, Martinen
dc.date.accessioned2024-12-19T12:54:28Zen
dc.date.available2024-12-19T12:54:28Zen
dc.identifier.urihttps://hdl.handle.net/10568/164922
dc.titleImproving energy efficiency and developing an air-cooled grate for the downdraft rice husk furnaceen
dcterms.abstractPaddy drying plays an important role in reducing postharvest losses in rice. This process usually involves using a dryer that requires either fossil fuels or renewable energy to heat the drying air, which removes water from the paddy. This research looked into developing a downdraft rice husk furnace used for paddy drying that resulted in an improved air-cooled grate with optimal operation. This optimal operation was used to generate sufficient heat to increase the drying air temperature by 10–15oC at an air flow rate of 3.5 m3 s-1, attaining an efficiency of 80%. At optimal combustion, the carbon monoxide (CO) concentration generated in the drying air ranged from 25 to 42 ppm. The furnace’s improved air-cooled grate solved the problem of pipe bending or melting during operation. The pipes in the grate reached a maximum temperature of 650oC and did not bend or melt during operation. In addition to this, using a grate with the rotatable pipes, which allows for easy changing of the surface area that is directly in contact with the firing zone, can prolong it’s the grate’s lifespan, thus reducing maintenance costs. The ultimate result is a more efficient renewable energy solution for paddy dryingen
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationVan Hung, Nguyen; Quilloy, Reianne and Gummert, Martin. 2018. Improving energy efficiency and developing an air-cooled grate for the downdraft rice husk furnace. Renewable Energy, Volume 115 p. 969-977en
dcterms.extentpp. 969-977en
dcterms.issued2018-01
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherElsevieren
dcterms.typeJournal Article

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