Effect of Moisture on Gas Emissions from Stored Woody Biomass
| Autor: | Shahab Sokhansanj, Anthony Lau, Xiao He |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Control and Optimization
020209 energy Energy Engineering and Power Technology Biomass 02 engineering and technology lcsh:Technology 7. Clean energy storage 020401 chemical engineering Dry weight 0202 electrical engineering electronic engineering information engineering Dry matter dry matter loss 0204 chemical engineering Electrical and Electronic Engineering Engineering (miscellaneous) Water content moisture content gas emission Moisture lcsh:T Renewable Energy Sustainability and the Environment business.industry wood chips Gas emissions aerobic non-aerobic Pulp and paper industry Renewable energy 13. Climate action Environmental science Degradation (geology) business Energy (miscellaneous) |
| Zdroj: | Energies; Volume 13; Issue 1; Pages: 128 Energies, Vol 13, Iss 1, p 128 (2019) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en13010128 |
| Popis: | Biomass materials have been increasingly used due to their renewable nature. The problems occurring during the storage of fresh woody materials include gas emissions and dry matter losses as a result of degradation. The objective of this study was to investigate and quantify the effect of moisture content on gas emissions from stored wood chips. Experiments were conducted under non-aerobic and aerobic conditions using fresh Western Red Cedar (WRC) chips with different initial moisture contents over a range of temperatures. The peak CO2 emission factor of 2.9 g/kg dry matter (DM) was observed from high moisture chips at 20 °C under non-aerobic conditions after two-month storage, which was an order of magnitude greater than that from low moisture chips. In the case of volatile organic compounds, a range of compounds were detected from all tests. The concentration of VOCs was found to be positively correlated with moisture content. Gas emissions from the aerobic reactors exhibited similar trends as non-aerobic reactors with respect to the effect of moisture content, although higher values were observed under aerobic conditions. Slight reduction of dry mass from all tests at the end of storage indicated the decay-resistance characteristics of WRC. |
| Databáze: | OpenAIRE |
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