Technical Report

 

Kiln-drying Oregon maple paper roll plugs Public Deposited

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https://ir.library.oregonstate.edu/concern/technical_reports/c247ds15b

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  • Four charges of S-inch paper roll plugs of Oregon maple were kiln-dried at various temperatures and humidities. The charge with the most desirable combination of short drying time and low degrade was dried to 12 per cent moisture content in lit hours, using a dry-bulb temperature of 160 degrees F and a wet-bulb temperature of 122 degrees F. Pieces in the charge suffering degrade in an empirical test amounted to 10 per cent of the total pieces in the charge. At a final average moisture content of 8 per cent, 80 per cent of the plugs dried with the best schedule were within plus or minus 2 per cent of the average. The average of the tangential and radial shrinkage was 4 per cent. With the best schedule used, boiler horsepower requirement for drying a charge of 2300 five-inch plugs was calculated to be 9 hp with kiln efficiency of 33 1/3 per cent, and 6 hp with kiln efficiency of 50 per cent.
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  • Master files scanned at 600 ppi (256 Grayscale, 24-bit Color) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 B&W, 256 Grayscale, 24-bit Color), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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  • description.provenance : Submitted by Joe Nguyen (jnscanner@gmail.com) on 2009-01-14T23:23:38Z No. of bitstreams: 1 kil_dry_ore_map_pap_.pdf: 451497 bytes, checksum: 693ac1926e74bfc087ab3d1f1e116149 (MD5)
  • description.provenance : Made available in DSpace on 2009-01-16T16:56:48Z (GMT). No. of bitstreams: 1 kil_dry_ore_map_pap_.pdf: 451497 bytes, checksum: 693ac1926e74bfc087ab3d1f1e116149 (MD5) Previous issue date: 1955
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2009-01-16T16:56:48Z (GMT) No. of bitstreams: 1 kil_dry_ore_map_pap_.pdf: 451497 bytes, checksum: 693ac1926e74bfc087ab3d1f1e116149 (MD5)

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