Peluang Energi terbarukan di Industri Pemanfaatan Termal Surya Pada Proses Pengeringan Kayu

Abstract

Konsep perpindahan Massa dan panas dalam suatu sistem memberikan pendekatan mendasar untuk memperkirakan efisiensi termal sistem pengeringan kayu energi surya. Efisiensi termal sendiri didefinisikan sebagai rasio panas teoritis dan aktual yang diperlukan selama proses pengeringan. Perhitungan panas didasarkan pada jumlah energi yang diserap oleh sistem. Hasil perhitungan menunjukkan bahwa efisiensi termal yang dapat dicapai dengan sistem pengeringan kayu energi surya pada kondisi ini dijelaskan dalam makalah ini adalah 17,1% dengan rasio 25,2%.Kata kunci : Pengeringan Kayu, Efisiensi Termal, Energi Surya, KolektorAbstractMass and heat transfer concept in a system provide a fundamental approach for estimating thermal efficiency of solar energy wood drying system. The thermal efficiency itself is defined as ratio of theoretical and actual heat required during drying process. Heat calculation was based on amount of energy absorbed by the system. The calculation result showed that the thermal efficiency that could be achieved by this solar energy wood drying system at this condition described in this paper is 17.1% with the ratio of 25.2%.Keywords : Wood Dryer, Thermal Efficiency, Solar Energy, Collector

Cross-Flow Flat-Plate Heat Exchanger Using Computational Fluid Dynamics Simulation on Wood Drying Chamber

“…Engineered wood with a certain level of moisture is placed in a drying chamber to be dried using the heat generated from a cross-flow flat-plate heat exchanger. The temperature is then set within a particular range (60-80 °C) in order to evaporate the moisture [6].…”

“…There are some reasons why the cross-flow flat-plate heat exchanger is better than its tubular version (double pipe heat exchanger) [6] [7] such as the fact that (1) a flat-plate heat exchanger can save energy up to five times more than the tubular design; (2) its installation requires a smaller space; (3) it is easier to maintain [9]; (4) its capacity is easy to adjust; (5) it decreases operation cost; (6) the average heat transfer and the heat transfer coefficient from nanofluid of both heat exchanger devices are higher than its fluid form (water inflow and outflow); and (7) its efficiency is higher than a tubular (concentric tube) heat exchanger [10].…”