Basic Properties in Relation to Drying Properties of Three Wood Species from Indonesia

Basri, Efrida; Hadjib, Nurwati; Saefudin, Saefudin

doi:10.20886/ijfr.2005.2.1.49-56

Cited by 3 publications

(2 citation statements)

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“…The moisture evaporation from a wood is a complex process, moreover in hardwood species which have more complicated structure than the softwood species. A number of anatomical features that possibly affect the drying process of a particular wood include the sapwood depth, vessels, ray cells, fiber wall and parenchyma (Basri et al, 2005;Mugabi et al, 2010). Vessels and ray cells are considered as important pathway for moisture movement within the hardwood (Keey et al, 2000;Basri et al, 2005).…”

Section: Results and Discussion A High Temperature Drying Propementioning

confidence: 99%

High temperature drying properties and basic drying schedule of 5 lesser-known species from Riau

Yuniarti¹,

Basri²

2017

JPKW

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Drying process is a crucial stage in the utilization of any wood for construction and furniture purposes. The study aimed to: (i) investigate the sensitivity of several lesser-known wood species from natural forest in Riau to drying process at high temperature; and (ii) develop basic drying schedule for each wood. Five lesser-known species from Riau were investigated, namely punak (Tetramerista glabra), mempisang (Diospyros korthalsiana), pasak linggo (Aglaia argentea), meranti bunga (Shorea teysmanniana) and suntai (Palaquiumburckii). Modified Terazawa's (1965) method was used for the experiment. The result shows that deformation was found for all species. The most severe deformation level was observed for both punak (score value of 4-6) and mempisang (score value of 4-5). On the other hand, pasaklinggo experienced the most severe initial end/surface check/split (score value of 6) and honeycombing (score value of 5). The result also showed that punak and pasaklinggo can be dried with the same drying schedule at the temperature range of 40-65° C and the humidity range of 38-88%. The proposed temperature and humidity ranges (or drying schedules) are 50-80° C and 28-80% for suntai, 50-70° C and 25-80% for mempisang, and 50-70° C and 40-84% for meranti bunga. Mempisang and suntai can use the same drying condition until fiber saturation point, then different drying condition applies.

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Section: Results and Discussion A High Temperature Drying Propementioning

confidence: 99%

High temperature drying properties and basic drying schedule of 5 lesser-known species from Riau

Yuniarti¹,

Basri²

2017

JPKW

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“…Dinding serat kayu telisai yang tebal berakibat terhadap banyaknya air terikat yang harus dikeluarkan dari dinding sel kayu, sehingga penyusutannya menjadi tinggi. Upaya untuk meningkatkan permeabilitas kayu telisai dapat dilakukan dengan pemberian uap (steaming) sebelum proses pengeringan (Basri et al, 1999).…”

Section: Figure 2 Relationship Between Ray Width and Drying Property(%)unclassified

Pengaruh Sifat Fisik Dan Anatomi Terhadap Sifat Pengeringan Enam Jenis Kayu

Basri

Rulliaty

2008

j.penelit.has.kehutan

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This study was intended to investigate the effect of physical and anatomical properties on drying properties of six wood species, i.e. tisuk (Hibiscus macrophyllus), gading (Koilodepas sp), mahang (Macaranga hypoleuca), telisai (Planchonia grandis), sibau (Blumeodendron kurzii), and kenari (Santiria laevigata). The physical properties included density and shrinkages, anatomical structure covering ray width. The drying properties included end & surface checks and honeycomb using high temperature drying method ( at 100 o C temperature). The drying properties for each species were based on observed drying defect classes resulted in high temperature drying.Results of experiment revealed that the specific gravity has relationship geometric regression with tangential shrinkage(R 2 = 0,78), and the ray width has relationship linier regression with drying properties (R 2 = 0,60). Tisuk and sibau belongs to easily dried wood due to having low to medium specific gravity, and large vessel diameter.Mahang, gading, and telisai are hardly to be dried, because they have high specific gravity ( gading and telisai) and low specific gravity on mahang, also unsupported by their anatomical structures such as thick fiber cell-wall (gading), small vessel diameter (mahang and gading) and present of tyloses (gading and telisai).

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Variability in physical properties of plantation-grown progenies of Melia composita and determination of a kiln-drying schedule

et al. 2017

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Basic Properties in Relation to Drying Properties of Three Wood Species from Indonesia

Cited by 3 publications

References 1 publication

High temperature drying properties and basic drying schedule of 5 lesser-known species from Riau

High temperature drying properties and basic drying schedule of 5 lesser-known species from Riau

Pengaruh Sifat Fisik Dan Anatomi Terhadap Sifat Pengeringan Enam Jenis Kayu

Variability in physical properties of plantation-grown progenies of Melia composita and determination of a kiln-drying schedule

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