PDF Publication Title:
Text from PDF Page: 093
3 2 . 5 2 1.5 1 0.5 0 -0.5 -1 -1.5 -2 MES1 MES2 MES3 MES4 V a c . C o n v. V a c . C o n v. V a c . C o n v. V ac . Conv. Figure 46. Scattergram of drying stress – E. obliqua Table 56. Drying stress results – E. obliqua MES1 Vacuum Conventional Drying stress (Dstress) MES4 Vacuum Conventional MES2 MES3 Vacuum Conventional Vacuum Conventional 0.3 2.2 0.0 0.5 0.375 0.2 1.4 0.0 0.3 0.4 2.1 -0.4 0.5 0.077 0.3 1.1 0.0 0.3 BB BB Average Maximum 1.3 Minimum -1.8 Standard deviation 0.7 Significance (p) Grade quality (AS/NZS 4787 ) B Collapse -0.1 0.4 1.3 0.0 0.3 B 0.4 1.6 0.0 0.4 B 0.8 1.9 0.0 0.5 C < 0.0001 < 0.0001 Varying amounts of collapse were present for all boards in each vacuum drying trial before reconditioning. After reconditioning, drying and surface dressing the vacuum dried sample boards, 50% of the non-reconditioned sample boards for trials MES1 and MES 2, and 40% for trial MES3 and MES4, were affected by miss after dressing due to excessive collapse. Miss affected zero percent of the reconditioned boards after dressing. These results indicate vacuum dried collapsed boards can be successfully reconditioned using standard industry practice. After drying, cross–sections from all 100 sample boards were scanned for further quantification of collapse recovery between reconditioned and non-reconditioned boards. Plate 21 shows a representative sample of scanned cross sections of the non-reconditioned (two left columns) and reconditioned boards (two right columns). The effect of collapse recovery on the reconditioned boards is visually evident. 86 Evaluation of super–heated steam vacuum drying viability and development of a predictive drying model for Australian hardwood species – Final report DstressPDF Image | Evaluation of super-heated steam vacuum drying
PDF Search Title:
Evaluation of super-heated steam vacuum dryingOriginal File Name Searched:
PN08_2047_Vacuum_Drying_Reviewed_Report.pdfDIY PDF Search: Google It | Yahoo | Bing
5,000 BF Shipping Container Lumber Dry Kiln For Quality Lumber The 5,000 BF container kiln consists of one 40 foot high-cube aluminum shipping container... More Info
Shipping Container Lumber Dry Kilns by Global Energy Global Energy designed and developed the container kiln back in 1991. The purpose is to give access to portable sawmill owners, furniture makers, and small business the value added profit of dry kiln lumber and quality hardwoods... More Info
Vacuum Kiln Conversion Kit for Lumber and Wood Dry Kilns Convert your existing conventional dry kiln into a fast drying vacuum kiln. Similar to vacuum bagging in the boat building and aircraft industry, we have come up with a proprietary process which allows you to build a very simple vacuum kiln at a fraction of the price, and without the intensive conventional metal chamber structure... More Info
Vacuum Pump Cart System for Bagging Clamping Wood Drying and more Vacuum Cart with 2HP Pump and Dual Pistons with multiple multiplex vacuum ports and liquid reservoir... More Info
Vacuum Bagging Basics Vacuum bagging is a method of clamping, which has traditionally been used in the composites industry, but can also be used for vacuum drying materials, including wood products... More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)