Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers
This study reports the spray characteristics of two fast pyrolysis bio-oils with different viscosities (0.0753 and 0.1522 Pa·s at 21 °C) and a set of bioslurry samples prepared from the bio-oils at various biochar loading levels (5, 10, 15, and 20 wt %). Two types of atomizers (impact atomizer and t...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/31647 |
| _version_ | 1848753439906988032 |
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| author | Ghezelchi, M. Garcia-Perez, M. Wu, Hongwei |
| author_facet | Ghezelchi, M. Garcia-Perez, M. Wu, Hongwei |
| author_sort | Ghezelchi, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study reports the spray characteristics of two fast pyrolysis bio-oils with different viscosities (0.0753 and 0.1522 Pa·s at 21 °C) and a set of bioslurry samples prepared from the bio-oils at various biochar loading levels (5, 10, 15, and 20 wt %). Two types of atomizers (impact atomizer and two-fluid atomizer) were used. Experiments for the impact atomizers of various sizes were carried out at injection pressures of 2.07–4.96 MPa and feeding rates of 108–490 mL/min. At a constant pressure, the Sauter mean diameter (SMD) of bio-oil and bioslurry increases as the flow number increases, while at a constant flow number, the SMD decreases rapidly with increasing pressure. The biochar loading level has a significant impact on the bioslurry atomization characteristics. An increase in biochar leading level results in a substantial increase in the spray SMD. Experiments using the twin-fluid atomizer (N2 as the atomization gas) were carried out at flow rates of 2–6 mL/min. A twin-fluid atomizer is more applicable at considerably lower liquid flow rates than an impact atomizer. The spray SMD of the twin-fluid atomizer is mainly influenced by the liquid viscosity, gas/liquid ratio (GLR), and biochar loading level. An increase in viscosity and biochar loading level leads to an increase in the spray SMD, while an increase in GLR leads to a reduction in the SMD. Correlations have also been developed to predict spray SMD of bio-oil and bioslurry using both atomizers. |
| first_indexed | 2025-11-14T08:24:32Z |
| format | Journal Article |
| id | curtin-20.500.11937-31647 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:24:32Z |
| publishDate | 2015 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-316472017-09-13T15:20:01Z Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers Ghezelchi, M. Garcia-Perez, M. Wu, Hongwei This study reports the spray characteristics of two fast pyrolysis bio-oils with different viscosities (0.0753 and 0.1522 Pa·s at 21 °C) and a set of bioslurry samples prepared from the bio-oils at various biochar loading levels (5, 10, 15, and 20 wt %). Two types of atomizers (impact atomizer and two-fluid atomizer) were used. Experiments for the impact atomizers of various sizes were carried out at injection pressures of 2.07–4.96 MPa and feeding rates of 108–490 mL/min. At a constant pressure, the Sauter mean diameter (SMD) of bio-oil and bioslurry increases as the flow number increases, while at a constant flow number, the SMD decreases rapidly with increasing pressure. The biochar loading level has a significant impact on the bioslurry atomization characteristics. An increase in biochar leading level results in a substantial increase in the spray SMD. Experiments using the twin-fluid atomizer (N2 as the atomization gas) were carried out at flow rates of 2–6 mL/min. A twin-fluid atomizer is more applicable at considerably lower liquid flow rates than an impact atomizer. The spray SMD of the twin-fluid atomizer is mainly influenced by the liquid viscosity, gas/liquid ratio (GLR), and biochar loading level. An increase in viscosity and biochar loading level leads to an increase in the spray SMD, while an increase in GLR leads to a reduction in the SMD. Correlations have also been developed to predict spray SMD of bio-oil and bioslurry using both atomizers. 2015 Journal Article http://hdl.handle.net/20.500.11937/31647 10.1021/acs.energyfuels.5b02089 restricted |
| spellingShingle | Ghezelchi, M. Garcia-Perez, M. Wu, Hongwei Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers |
| title | Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers |
| title_full | Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers |
| title_fullStr | Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers |
| title_full_unstemmed | Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers |
| title_short | Bioslurry as a Fuel. 7: Spray Characteristics of Bio-Oil and Bioslurry via Impact and Twin-Fluid Atomizers |
| title_sort | bioslurry as a fuel. 7: spray characteristics of bio-oil and bioslurry via impact and twin-fluid atomizers |
| url | http://hdl.handle.net/20.500.11937/31647 |