| Issue |
E3S Web Conf.
Volume 608, 2025
EU-CONEXUS EENVIRO Research Conference - The 9th Conference of the Sustainable Solutions for Energy and Environment (EENVIRO 2024)
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|---|---|---|
| Article Number | 01016 | |
| Number of page(s) | 11 | |
| Section | Energy | |
| DOI | https://doi.org/10.1051/e3sconf/202560801016 | |
| Published online | 22 January 2025 | |
Technical and economic analysis of a specific spruce wood material drying process
Technical University of Sofia, Faculty of Power Engineering and Power Machines, K. Ohridski blvd. 8, 1000 Sofia, Bulgaria
* Corresponding author: aterziev@tu-sofia.bg
The presented work reveals the technical and economic analysis of a spruce wood material drying process, for a specific installation. The analysis is made of the drying process of spruce timber, where the amount of initial moisture content is 60% and the equilibrium moisture content is 12%. The baseline technological process is considered for the existing installation with a wood burning boiler, used for heat supply source. Three different heat source options were further suggested and analysed, for the wood drying process optimization: implementation of natural gas boiler, electric boiler and high temperature heat pump installation. The calculations for each of them were performed at a heat output of 100 kW and a drying temperature regime of 90/75°C. The results show that only the annual energy costs of the option with a heat pump system are lower than the base case, with the cash savings amounting to USD 4,884/year, payback period of 9.47 years and 99.93 t/year CO2 emissions. The specific energy consumption in this optimal suggested case is 0.139 kWh/kg.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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