| Revista: | Maderas : ciencia y tecnología |
| Base de datos: | |
| Número de sistema: | 000534564 |
| ISSN: | 0718-221X |
| Autores: | Meng, Yang1 Chen, Guangyuan2 Hong, Gonghua1 Wang, Mingjie1 Gao, Jianmin1 Chen, Yao1 |
| Instituciones: | 1Beijing Forestry University College of Material Science and Technology, Beijing. China 2Northeast Forestry University College of Material Science and Engineering Key Laboratory of Bio-based Material Science and Technology, Harbin. China |
| Año: | 2019 |
| Volumen: | 21 |
| Número: | 4 |
| Paginación: | 545-558 |
| País: | Chile |
| Idioma: | Inglés |
| Resumen en inglés | Conventional kilns dominate the wood drying industry. However, energy consumption during the process of ventilation remains a significant challenge. In this study, we designed a device to recover waste heat from exhausted wet air during kiln drying. To determine energy conservation, the device was installed in a 50 m3 kiln used for drying sawn timber in two different Chinese cities, and a traditional kiln with identical size was chosen to enable comparison. Two kinds of hardwood (Betula costata Trautv and Quercus mongolica) swan timbers were dried using conventional technology to investigate the energy saving effect of rainy seasons as well as seasonally different temperature. The results revealed that drying time and energy consumption decreased with the use of this energy-conserving device. Electrical and energy consumption were reduced by 18,9% and 38,5%, respectively. Waste heat recovery efficiencies ranged from 20,32% to 28,15%. Energy-conservation efficiency can be predicted to range from 12,23% to 22,74% annually. Equipment costs can be recovered within 3,5 years. |
| Keyword: | Drying, Energy conservation, Shell and tube exchanger, Waste heat, Wood |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
