Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Vol 14, No 3 (2025): June 2025

Drying Characteristics of Pine Wood (Pinus merkusii Jungh. et de Vriese) Using Hot Air, Infrared, and Combined Infrared-Hot Air

Yefri Chan (Darma Persada University)
Dwi Aries Himawanto (Sebelas Maret University)
Budi Kristiawan (Sebelas Maret University)
Indri Yaningsih (Sebelas Maret University)
Erwin Erwin (Darma Persada University)



Article Info

Publish Date
05 May 2025

Abstract

This research aims to determine the drying characteristics of Merkusii pine wood (Pinus merkusii Jungh. et de Vriese) using three methods, including the hot air drying, infrared, and combined infrared-hot air. The drying characteristics included temperature distribution, reduction in moisture content, drying rate, wood surface temperature distribution, and specific energy consumption (SEC). The results show that the combined infrared-hot air drying method produces a faster drying time and the highest drying rate compared to the only hot air or only infrared drying method. The fastest drying time was 345 min at a treatment temperature of 90°C, air velocity of 3 m/s, and the greatest drying rate was 0.429 gr/min at a temperature of 80°C, air velocity of 3 m/s. Additionally, the combined infrared hot air method produces a more uniform temperature distribution on the wood surface and lower specific energy consumption, specifically 1027.15 MJ/kg. Keywords: Drying, Hot air, Infrared, Temperature.

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Journal Info

Abbrev

JTP

Publisher

Subject

Agriculture, Biological Sciences & Forestry Engineering

Description

Jurnal Teknik Pertanian Lampung or Journal of Agricultural Engineering (JTEP-L) is a peer-reviewed open-access journal. The journal invites scientists and engineers throughout the world to exchange and disseminate theoretical and practice-oriented researches in the whole aspect of Agricultural ...