Experimental Study on Ultrafine Particle Removal Performance of Portable Air Cleaners with Different Filters in an Office Room
Dados Bibliográficos
| ID | 15465165 |
|---|---|
| Autores | Huan Ma (0000-0002-9916-0295, Donghua University), Henggen Shen (Donghua University, autor correspondente), Tiantian Shui (Donghua University), Qing Li (0000-0002-2449-1655, Donghua University), Liuke Zhou (Donghua University) |
| Ano | 2016 |
| Volume | 13 |
| Fascículo | 1 |
| Páginas | 102-102 |
| Data de publicação | 2016-01-05 |
| Peer Reviewed | Sim |
| Open Access | Sim |
| Tipo | ARTICLE |
| Periódico | International Journal of Environmental Research and Public Health (JOURNAL) |
| Identificadores do periódico | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Editora | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph13010102 |
| PMID | 26742055 |
| OpenAlex | W2222994320 |
| Idioma | EN |
| Citações recebidas | 3 |
| Referências citadas | 25 |
Size- and time-dependent aerodynamic behaviors of indoor particles, including PM1.0, were evaluated in a school office in order to test the performance of air-cleaning devices using different filters. In-situ real-time measurements were taken using an optical particle counter. The filtration characteristics of filter media, including single-pass efficiency, volume and effectiveness, were evaluated and analyzed. The electret filter (EE) medium shows better initial removal efficiency than the high efficiency (HE) medium in the 0.3-3.5 μm particle size range, while under the same face velocity, the filtration resistance of the HE medium is several times higher than that of the EE medium. During service life testing, the efficiency of the EE medium decreased to 60% with a total purifying air flow of 25 × 104 m3/m2. The resistance curve rose slightly before the efficiency reached the bottom, and then increased almost exponentially. The single-pass efficiency of portable air cleaner (PAC) with the pre-filter (PR) or the active carbon granule filter (CF) was relatively poor. While PAC with the pre-filter and the high efficiency filter (PR&HE) showed maximum single-pass efficiency for PM1.0 (88.6%), PAC with the HE was the most effective at removing PM1.0. The enhancement of PR with HE and electret filters augmented the single-pass efficiency, but lessened the airflow rate and effectiveness. Combined with PR, the decay constant of large-sized particles could be greater than for PACs without PR. Without regard to the lifetime, the electret filters performed better with respect to resource saving and purification improvement. A most penetrating particle size range (MPPS: 0.4-0.65 μm) exists in both HE and electret filters; the MPPS tends to become larger after HE and electret filters are combined with PR. These results serve to provide a better understanding of the indoor particle removal performance of PACs when combined with different kinds of filters in school office buildings
Air filter · Nanotechnology · Particle (ecology · Ultrafine particle · Waste management · Aerosol Filtration and Electrostatic Precipitation · Air Quality and Health Impacts · Air Quality Monitoring and Forecasting · Engineering · Environmental Science · Materials Science · Mechanical Engineering
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| Obras citantes distintas | 3 |
|---|---|
| Citações por ano | 0,5 |
| Intervalo de citações | 2020 - 2024 (5) |
| Velocidade de citação | recent |
| Altamente citado | Não |
| Tipos de citação | Neutras: 3 |