Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Kiln Drying of Gamar (gmelina Arborea) Using Varying Sticker Thicknesses and Drying Schedules.

M. A. Sattar
Director (Ex.)
Seasoning & Timber Physics Division, Bangladesh Forest Research Institute, Chittagong.

Y.A. Talukdar
Seasoning & Timber Physics Division, Bangladesh Forest Research Institute, Chittagong.

S.B. Sarker
Seasoning & Timber Physics Division, Bangladesh Forest Research Institute, Chittagong.

Abstract/ Executive Summary:

Kiln drying characteristics of 2.5 cm gamar planks were studied using three types of stickers and schedules. Nine charges of gamar were run in a steam heated dry kiln. It was found that the difficulty of kiln seasoning of gamar could be eliminated substantially if an accelerated drying schedule with comparatively higher temperature was employed in conjunction with the standard sticker thickness of 2.5 cm.

Keywords: Gamar, Kiln drying characteristics, Steam heated dry kiln, Gamar, Garjan

Location: BFIDC timber depot at Kaptai. Logs

Start Date: 00-00-0000

End Date: 00-00-0000

Program Area: Postharvest and Agro-processing

Commodity: Gamar

Objectives:

To establish a method for economic drying of gamar by employing varying sticker thicknesses and drying schedule.

Methodology:

Gamar (Gmelina arborea) logs were procured in green condition from the BFIDC timber depot at Kaptai. Logs were converted to 2.5 cm ´ 20.0 cm ´ 2.5 m dimensions prior to drying of each charge. The stickers of three thicknesses, viz., 2.5 cm, 3.8 cm and 5.0 cm were prepared from the dried garjan (Dipterocarpus spp) planks. Three kiln charges were run with these stickers employing the conventional drying schedule. Six other kiln charges were dried using the two accelerated kiln schedules established earlier. These kiln schedules are shows in the text. The stickers of 2.5 cm, 3.8 cm and 5.0 cm were used for each of these charges. All drying experiments were conducted in a force draft compartment type steam heated kiln of 1.0 m³ capacity.Ten full length boards, seven from flat sawn and three from quarter sawn, were taken as the samples. The initial moisture content of each board was determined by preparing two moisture sections from 15 cm apart of both ends. Moisture loss data were taken every day during the course of drying. At the conclusion of drying, qualitative assessment was made for the drying degrades.

Source of Information: Bangladesh Journal of Forest Science, Vol : 20 (1 & 2), Jan-July 1991, 49-54

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It is recommended that gamar planks which exhibits drying problem may be kiln dried using the standard sticker of 2.5 cm and accelerated schedule with higher temperature. This drying method was found comparatively economical and the quality of timber related to defect was acceptable.

Knowledge Management: Journal