Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal
The negative ion air purifier (NIAP) has been used for capturing particulate matter. Nevertheless, the knowledge on its effectiveness in removing other air pollutants such as ammonia gas remains limited. In this study, the effect of an NIAP for indoor ammonia gas removal was evaluated through a seri...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/15/2/261 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832588856428331008 |
|---|---|
| author | Yilin Li Zewen Liu Yidong Li Ying Chen Ziding Bai Huaiwang Jing Ruiyan Zhang Jianbo Chen |
| author_facet | Yilin Li Zewen Liu Yidong Li Ying Chen Ziding Bai Huaiwang Jing Ruiyan Zhang Jianbo Chen |
| author_sort | Yilin Li |
| collection | DOAJ |
| description | The negative ion air purifier (NIAP) has been used for capturing particulate matter. Nevertheless, the knowledge on its effectiveness in removing other air pollutants such as ammonia gas remains limited. In this study, the effect of an NIAP for indoor ammonia gas removal was evaluated through a series of experimental studies. The applicability and different influencing, operating, and environmental factors on the ammonia gas removal performance were firstly investigated by conducting a series of experiments. Then, in order to understand the performance of the NIAP and the spatial distribution of ammonia gas and other by-products, indoor field measurements of ammonia gas, ozone, and negative ion concentrations in a real bathroom were performed for different cases with the NIAP turned on and off. The results indicated that negative ions were effective in reducing ammonia gas concentration. The operating and environmental factors including upstream wind speed, degree of operating voltage, and initial ammonia gas concentration have great influences on the ammonia gas removal efficiency of the NIAP. The highest removal efficiency can reach to 95.8%, when the upstream wind speed was 0.8 m/s and the degree of operating voltage was at gear 3 (3.0 kV). The purification efficiency of ammonia gas for the NIAP could reach up to 80%. |
| format | Article |
| id | doaj-art-b317bc840b804d158320d1f34a670d1e |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-b317bc840b804d158320d1f34a670d1e2025-01-24T13:26:23ZengMDPI AGBuildings2075-53092025-01-0115226110.3390/buildings15020261Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas RemovalYilin Li0Zewen Liu1Yidong Li2Ying Chen3Ziding Bai4Huaiwang Jing5Ruiyan Zhang6Jianbo Chen7School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, ChinaDong Yuan Group, Shanghai 200093, ChinaTianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, ChinaThe negative ion air purifier (NIAP) has been used for capturing particulate matter. Nevertheless, the knowledge on its effectiveness in removing other air pollutants such as ammonia gas remains limited. In this study, the effect of an NIAP for indoor ammonia gas removal was evaluated through a series of experimental studies. The applicability and different influencing, operating, and environmental factors on the ammonia gas removal performance were firstly investigated by conducting a series of experiments. Then, in order to understand the performance of the NIAP and the spatial distribution of ammonia gas and other by-products, indoor field measurements of ammonia gas, ozone, and negative ion concentrations in a real bathroom were performed for different cases with the NIAP turned on and off. The results indicated that negative ions were effective in reducing ammonia gas concentration. The operating and environmental factors including upstream wind speed, degree of operating voltage, and initial ammonia gas concentration have great influences on the ammonia gas removal efficiency of the NIAP. The highest removal efficiency can reach to 95.8%, when the upstream wind speed was 0.8 m/s and the degree of operating voltage was at gear 3 (3.0 kV). The purification efficiency of ammonia gas for the NIAP could reach up to 80%.https://www.mdpi.com/2075-5309/15/2/261negative ion air purifierammonia removalindoor environmentexperimental study |
| spellingShingle | Yilin Li Zewen Liu Yidong Li Ying Chen Ziding Bai Huaiwang Jing Ruiyan Zhang Jianbo Chen Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal Buildings negative ion air purifier ammonia removal indoor environment experimental study |
| title | Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal |
| title_full | Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal |
| title_fullStr | Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal |
| title_full_unstemmed | Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal |
| title_short | Influencing Factors and Purification Performance of a Negative Ion Air Purifier for Indoor Ammonia Gas Removal |
| title_sort | influencing factors and purification performance of a negative ion air purifier for indoor ammonia gas removal |
| topic | negative ion air purifier ammonia removal indoor environment experimental study |
| url | https://www.mdpi.com/2075-5309/15/2/261 |
| work_keys_str_mv | AT yilinli influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval AT zewenliu influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval AT yidongli influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval AT yingchen influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval AT zidingbai influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval AT huaiwangjing influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval AT ruiyanzhang influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval AT jianbochen influencingfactorsandpurificationperformanceofanegativeionairpurifierforindoorammoniagasremoval |