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

Yefri Chan; Dwi Aries Himawanto; Budi Kristiawan; Indri Yaningsih; Erwin Erwin

doi:10.23960/jtep-l.v14i3.772-780

Authors

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

DOI:

https://doi.org/10.23960/jtep-l.v14i3.772-780

Abstract View: 155

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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Author Biographies

Yefri Chan, Darma Persada University

Mechanical Engineering Department

Dwi Aries Himawanto, Sebelas Maret University

Department of Mechanical Engineering

Budi Kristiawan, Sebelas Maret University

Department of Mechanical Engineering

Indri Yaningsih, Sebelas Maret University

Department of Mechanical Engineering

Erwin Erwin, Darma Persada University

Department of Mechanical Engineering

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