Data · collection · 2016
Evaluation of portable dilution system for aerosol measurement from stationary and mobile combustion sources
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This study presents the emission factor of PM 2.5 , elemental carbon (EC), organic carbon (OC), and water-soluble ions for biomass-fired-induced downdraft gasifier and light duty diesel vehicle (LDDV).
Description
A portable dilution system (PDS) developed for on-field measurement of aerosol and their precursors from combustion sources were used for quenching of aerosol at near-atmospheric condition before collection on filters. PDS consists of a heated duct and particle sampling probe, dilution tunnel, zero air assembly, and a power supply unit.
PDS was evaluated under controlled conditions in laboratory for gasifier cookstove and LDDV over wide range of dilution ratios to understand the effect of dilution on mixing, particle formation, and loss. The invariability in CO 2 , recorded along the length and at radial distances of cross-section of dilution tunnel, confirmed the rapid and homogenous mixing inside the dilution tunnel. The particle loss and nucleation inside the dilution tunnel accounted for 6–20% at different dilution ratios (30:1–90:1).
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PM 2.5 emission factors for wood combustion in gasifier cookstove showed mild decrease (13%) with increasing dilution ratio from 75:1 to 108:1. However, a considerable decrease of 37% (221–139 mg km −1 ) was observed for LDDV with increase in dilution ratio from 39:1 to 144:1. Similar decrease in particulate organic carbon emission rates were observed indicating scarcity of sorptive organics, and insufficient residence time for condensation limited the particle formation from vapor phase organic compounds at high dilution ratios. © 2016 American Association for Aerosol Research
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- Repository landing page figshare.com/collections/Evaluation_of_Portable_Dilution_System_for_Aerosol… ↗
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- DOI doi.org/10.6084/m9.figshare.c.3143494 ↗
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Documentation and papers
- CC-BY creativecommons.org/licenses/by/3.0/us ↗
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- IsSupplementTo 10.1080/02786826.2016.1178502 doi.org/10.1080/02786826.2016.1178502 ↗
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Topics
- Stated by source
- Biological sciences · Chemical sciences · Earth and related environmental sciences · Health sciences · Physical sciences
- From keywords
- Ecology · Medicine & Health · Microbiology · Research, science and technology policy
Related
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| DataCite | 10.6084/m9.figshare.c.3143494 | 15 d ago | JSON v1 |
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