Hubungan Letak Aksial dan Variasi Ketebalan Papan terhadap Penyusunan Skedul Pengeringan Kayu Cemara Gunung (Casuarina Junghuhniana Miq.) (Relationship Between Axial Location and Board Thickness Variation on Development of Drying Schedule of Cemara Gunung (Casuarina Junghuhniana Miq.))
| Main Authors: | Putera, Hanan Purana, Listyanto, Tomy |
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| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Universitas Lampung
, 2021
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| Online Access: |
http://jurnal.fp.unila.ac.id/index.php/JHT/article/view/4140 http://jurnal.fp.unila.ac.id/index.php/JHT/article/view/4140/3225 |
Daftar Isi:
- The research aimed to determine drying characteristics, developing drying schedule, and its relationship to the axial position of the sample on the stem, board thickness, specific gravity, and percentage of heartwood. This research used cemara gunung (Casuarina Junghuhniana Miq.) as samples with 6 replications and 2 factors that are the axial location (bottom, middle, and top) and board thickness (2 cm, 3 cm, and 4 cm). The development of the drying schedule followed the Terazawa Method (1965), which the samples were dried within a temperature of 100°C for 72 hours. The proper schedule was then applied and evaluated. The research obtained 11 variations of drying schedule. The results of the chi-square analysis indicated that the board thickness and percentage of heartwood were significantly correlated with the development of the drying schedule. Drying schedule using board thickness of 2 cm, 3 cm, and 4 cm can be dried with an initial temperature of 60°C, 50°C, and 47°C respectively. The wet-bulb depression was 4°C, 2°C, and 2°C, respectively, and the final temperature was 90°C, 80°C, and 65°C, respectively. Keywords: axial, board-thickness, cemara gunung, drying-schedule, Terazawa method