Development of a Cost-effective Adsorption Dryer for High-quality Aerosol Sampling

Abstract Due to their affinity to water, physical-chemical properties of aerosol particles depend highly on the ambient relative humidity (RH). Aerosol drying below 40% RH is recommended to minimize measurement artifacts, increase data quality, and make results from different environments comparable...

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Main Authors: Simonas Kecorius, Leizel Madueño, Susanne Sues, Josef Cyrys, Mario Lovrić, Mira Pöhlker, Kristina Plauškaitė, Lina Davulienė, Agnė Minderytė, Steigvilė Byčenkienė
Format: Article
Language:English
Published: Springer 2024-01-01
Series:Aerosol and Air Quality Research
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Online Access:https://doi.org/10.4209/aaqr.230057
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author Simonas Kecorius
Leizel Madueño
Susanne Sues
Josef Cyrys
Mario Lovrić
Mira Pöhlker
Kristina Plauškaitė
Lina Davulienė
Agnė Minderytė
Steigvilė Byčenkienė
author_facet Simonas Kecorius
Leizel Madueño
Susanne Sues
Josef Cyrys
Mario Lovrić
Mira Pöhlker
Kristina Plauškaitė
Lina Davulienė
Agnė Minderytė
Steigvilė Byčenkienė
author_sort Simonas Kecorius
collection DOAJ
description Abstract Due to their affinity to water, physical-chemical properties of aerosol particles depend highly on the ambient relative humidity (RH). Aerosol drying below 40% RH is recommended to minimize measurement artifacts, increase data quality, and make results from different environments comparable. Diffusion dryers (DD) are one of the most frequently used tools to lower RH in sampled air. This work presents a custom-built DD, its design, construction, and application. By using readily available materials and 3D printing, we were able to manufacture a high-quality, cost-effective DD that can be used in various measurement scenarios (e.g., long-term measurements, intensive field campaigns, laboratory studies, and applications with low-cost sensors). The DD is equipped with ports for desiccant regeneration using clean and dry air, eliminating the need for desiccant removal from the dryer. The field tests of the proposed DD showed that it could reduce RH from ambient 65% to < 5 and 15% at flow rates of 2.5 and 8.0 L min−1, respectively. The transmission efficiency (TE) of 10–20 nm and > 20 nm aerosol particles is between 60–80% and > 80%, respectively. The presented DD is easily scalable, thus, can be adapted for multiple applications at a low cost without compromising the data quality.
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institution Kabale University
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2071-1409
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spelling doaj-art-c6cd24e6f55e4f7e9a58317cc0c92d102025-02-09T12:23:48ZengSpringerAerosol and Air Quality Research1680-85842071-14092024-01-0124311110.4209/aaqr.230057Development of a Cost-effective Adsorption Dryer for High-quality Aerosol SamplingSimonas Kecorius0Leizel Madueño1Susanne Sues2Josef Cyrys3Mario Lovrić4Mira Pöhlker5Kristina Plauškaitė6Lina Davulienė7Agnė Minderytė8Steigvilė Byčenkienė9Institute of Epidemiology, Helmholtz Zentrum MünchenCenter for Physical Sciences and Technology (FTMC)Institute of Epidemiology, Helmholtz Zentrum MünchenInstitute of Epidemiology, Helmholtz Zentrum MünchenCentre for Applied Bioanthropology, Institute for Anthropological ResearchLeibniz-Institute for Tropospheric ResearchCenter for Physical Sciences and Technology (FTMC)Center for Physical Sciences and Technology (FTMC)Center for Physical Sciences and Technology (FTMC)Center for Physical Sciences and Technology (FTMC)Abstract Due to their affinity to water, physical-chemical properties of aerosol particles depend highly on the ambient relative humidity (RH). Aerosol drying below 40% RH is recommended to minimize measurement artifacts, increase data quality, and make results from different environments comparable. Diffusion dryers (DD) are one of the most frequently used tools to lower RH in sampled air. This work presents a custom-built DD, its design, construction, and application. By using readily available materials and 3D printing, we were able to manufacture a high-quality, cost-effective DD that can be used in various measurement scenarios (e.g., long-term measurements, intensive field campaigns, laboratory studies, and applications with low-cost sensors). The DD is equipped with ports for desiccant regeneration using clean and dry air, eliminating the need for desiccant removal from the dryer. The field tests of the proposed DD showed that it could reduce RH from ambient 65% to < 5 and 15% at flow rates of 2.5 and 8.0 L min−1, respectively. The transmission efficiency (TE) of 10–20 nm and > 20 nm aerosol particles is between 60–80% and > 80%, respectively. The presented DD is easily scalable, thus, can be adapted for multiple applications at a low cost without compromising the data quality.https://doi.org/10.4209/aaqr.230057Atmospheric aerosol particlesData quality assuranceAerosol dryingAerosol measurementDiffusion dryer
spellingShingle Simonas Kecorius
Leizel Madueño
Susanne Sues
Josef Cyrys
Mario Lovrić
Mira Pöhlker
Kristina Plauškaitė
Lina Davulienė
Agnė Minderytė
Steigvilė Byčenkienė
Development of a Cost-effective Adsorption Dryer for High-quality Aerosol Sampling
Aerosol and Air Quality Research
Atmospheric aerosol particles
Data quality assurance
Aerosol drying
Aerosol measurement
Diffusion dryer
title Development of a Cost-effective Adsorption Dryer for High-quality Aerosol Sampling
title_full Development of a Cost-effective Adsorption Dryer for High-quality Aerosol Sampling
title_fullStr Development of a Cost-effective Adsorption Dryer for High-quality Aerosol Sampling
title_full_unstemmed Development of a Cost-effective Adsorption Dryer for High-quality Aerosol Sampling
title_short Development of a Cost-effective Adsorption Dryer for High-quality Aerosol Sampling
title_sort development of a cost effective adsorption dryer for high quality aerosol sampling
topic Atmospheric aerosol particles
Data quality assurance
Aerosol drying
Aerosol measurement
Diffusion dryer
url https://doi.org/10.4209/aaqr.230057
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