A new smog chamber system for atmospheric multiphase chemistry study: design and characterization
<p>Multiphase chemistry is an important pathway for the formation of secondary organic aerosols (SOAs) in the atmosphere. In this study, an indoor 2 m<span class="inline-formula"><sup>3</sup></span> Teflon chamber system (Aerosol multIphase chemistry Research...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2023-08-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/16/3679/2023/amt-16-3679-2023.pdf |
| _version_ | 1797751562360061952 |
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| author | T. Zong Z. Wu Z. Wu J. Wang J. Wang K. Bi W. Fang Y. Yang X. Yu Z. Bao X. Meng Y. Zhang S. Guo S. Guo Y. Chen C. Liu Y. Zhang S.-M. Li M. Hu M. Hu |
| author_facet | T. Zong Z. Wu Z. Wu J. Wang J. Wang K. Bi W. Fang Y. Yang X. Yu Z. Bao X. Meng Y. Zhang S. Guo S. Guo Y. Chen C. Liu Y. Zhang S.-M. Li M. Hu M. Hu |
| author_sort | T. Zong |
| collection | DOAJ |
| description | <p>Multiphase chemistry is an important pathway for the formation of secondary organic aerosols (SOAs) in the atmosphere. In this study, an indoor 2 m<span class="inline-formula"><sup>3</sup></span> Teflon chamber system (Aerosol multIphase chemistry Research chamber, AIR) was developed and characterized to specifically simulate atmospheric multiphase chemistry processes. The temperature and humidity controls, diurnal variation simulation, and seed particle generation unit in this chamber system were designed to meet the needs of simulating multiphase atmospheric chemical reactions. The AIR chamber is able to accurately control temperature (2.5–31 <span class="inline-formula">±</span> 0.15 <span class="inline-formula"><sup>∘</sup></span>C) and
relative humidity (RH <span class="inline-formula"><2</span> %–<span class="inline-formula">>95</span> % <span class="inline-formula">±</span> 0.75 %) over a relatively broad range. In addition, an RH regulation module inside the chamber was designed to simulate the diurnal variation of ambient atmospheric RH. The aerosol generation unit is able to generate pre-deliquescent seed particles with an organic coating across a
wide range of phase states or morphologies. The organic coating thickness of the aerosols within the chamber can be precisely controlled through
adjusting the condensation temperature, further helping to elucidate the
roles of seed particles in multiphase chemical reactions. The inner walls of the AIR chamber are passivated to reduce the wall loss rates of reactive
gases. Yield experiments of <span class="inline-formula"><i>α</i></span>-pinene ozonolysis with and without
seed particles combined with a box model simulation demonstrate the
high-quality performance of secondary aerosol formation simulation using the AIR chamber.</p> |
| first_indexed | 2024-03-12T16:50:19Z |
| format | Article |
| id | doaj.art-255e8c35fe7a44ef92c94e3c9e590495 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-03-12T16:50:19Z |
| publishDate | 2023-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-255e8c35fe7a44ef92c94e3c9e5904952023-08-08T11:11:39ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482023-08-01163679369210.5194/amt-16-3679-2023A new smog chamber system for atmospheric multiphase chemistry study: design and characterizationT. Zong0Z. Wu1Z. Wu2J. Wang3J. Wang4K. Bi5W. Fang6Y. Yang7X. Yu8Z. Bao9X. Meng10Y. Zhang11S. Guo12S. Guo13Y. Chen14C. Liu15Y. Zhang16S.-M. Li17M. Hu18M. Hu19State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaLaboratory of Atmospheric Observation Supersite, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, ChinaBeijing Key Laboratory of Cloud, Precipitation and Atmospheric Water Resources, Beijing Weather Modification Center, Beijing 100089, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaResearch Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaResearch Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaBeijing Convenient Environmental Tech Co. Ltd., Beijing 101115, ChinaDepartment of Atmospheric Sciences, Texas A&M University, College Station, TX 77843, United StatesState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China<p>Multiphase chemistry is an important pathway for the formation of secondary organic aerosols (SOAs) in the atmosphere. In this study, an indoor 2 m<span class="inline-formula"><sup>3</sup></span> Teflon chamber system (Aerosol multIphase chemistry Research chamber, AIR) was developed and characterized to specifically simulate atmospheric multiphase chemistry processes. The temperature and humidity controls, diurnal variation simulation, and seed particle generation unit in this chamber system were designed to meet the needs of simulating multiphase atmospheric chemical reactions. The AIR chamber is able to accurately control temperature (2.5–31 <span class="inline-formula">±</span> 0.15 <span class="inline-formula"><sup>∘</sup></span>C) and relative humidity (RH <span class="inline-formula"><2</span> %–<span class="inline-formula">>95</span> % <span class="inline-formula">±</span> 0.75 %) over a relatively broad range. In addition, an RH regulation module inside the chamber was designed to simulate the diurnal variation of ambient atmospheric RH. The aerosol generation unit is able to generate pre-deliquescent seed particles with an organic coating across a wide range of phase states or morphologies. The organic coating thickness of the aerosols within the chamber can be precisely controlled through adjusting the condensation temperature, further helping to elucidate the roles of seed particles in multiphase chemical reactions. The inner walls of the AIR chamber are passivated to reduce the wall loss rates of reactive gases. Yield experiments of <span class="inline-formula"><i>α</i></span>-pinene ozonolysis with and without seed particles combined with a box model simulation demonstrate the high-quality performance of secondary aerosol formation simulation using the AIR chamber.</p>https://amt.copernicus.org/articles/16/3679/2023/amt-16-3679-2023.pdf |
| spellingShingle | T. Zong Z. Wu Z. Wu J. Wang J. Wang K. Bi W. Fang Y. Yang X. Yu Z. Bao X. Meng Y. Zhang S. Guo S. Guo Y. Chen C. Liu Y. Zhang S.-M. Li M. Hu M. Hu A new smog chamber system for atmospheric multiphase chemistry study: design and characterization Atmospheric Measurement Techniques |
| title | A new smog chamber system for atmospheric multiphase chemistry study: design and characterization |
| title_full | A new smog chamber system for atmospheric multiphase chemistry study: design and characterization |
| title_fullStr | A new smog chamber system for atmospheric multiphase chemistry study: design and characterization |
| title_full_unstemmed | A new smog chamber system for atmospheric multiphase chemistry study: design and characterization |
| title_short | A new smog chamber system for atmospheric multiphase chemistry study: design and characterization |
| title_sort | new smog chamber system for atmospheric multiphase chemistry study design and characterization |
| url | https://amt.copernicus.org/articles/16/3679/2023/amt-16-3679-2023.pdf |
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