Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality
Air pollution in urban areas is a huge concern that demands an efficient air quality control to ensure health quality standards. The hotspots can be located by increasing spatial distribution of ambient air quality monitoring for which the low-cost sensors can be used. However, it is well-known that...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/3/804 |
| _version_ | 1827597874390630400 |
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| author | Abdul Samad Freddy Ernesto Melchor Mimiaga Bernd Laquai Ulrich Vogt |
| author_facet | Abdul Samad Freddy Ernesto Melchor Mimiaga Bernd Laquai Ulrich Vogt |
| author_sort | Abdul Samad |
| collection | DOAJ |
| description | Air pollution in urban areas is a huge concern that demands an efficient air quality control to ensure health quality standards. The hotspots can be located by increasing spatial distribution of ambient air quality monitoring for which the low-cost sensors can be used. However, it is well-known that many factors influence their results. For low-cost Particulate Matter (PM) sensors, high relative humidity can have a significant impact on data quality. In order to eliminate or reduce the impact of high relative humidity on the results obtained from low-cost PM sensors, a low-cost dryer was developed and its effectiveness was investigated. For this purpose, a test chamber was designed, and low-cost PM sensors as well as professional reference devices were installed. A vaporizer regulated the humid conditions in the test chamber. The low-cost dryer heated the sample air with a manually adjustable intensity depending on the voltage. Different voltages were tested to find the optimum one with least energy consumption and maximum drying efficiency. The low-cost PM sensors with and without the low-cost dryer were compared. The experimental results verified that using the low-cost dryer reduced the influence of relative humidity on the low-cost PM sensor results. |
| first_indexed | 2024-03-09T03:40:29Z |
| format | Article |
| id | doaj.art-7ee751478a984d16a4ecc95981d46859 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T03:40:29Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7ee751478a984d16a4ecc95981d468592023-12-03T14:41:51ZengMDPI AGSensors1424-82202021-01-0121380410.3390/s21030804Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air QualityAbdul Samad0Freddy Ernesto Melchor Mimiaga1Bernd Laquai2Ulrich Vogt3Department of Flue Gas Cleaning and Air Quality Control, Institute of Combustion and Power Plant Technology (IFK), University of Stuttgart, Pfaffenwaldring 23, 70569 Stuttgart, GermanyDepartment of Flue Gas Cleaning and Air Quality Control, Institute of Combustion and Power Plant Technology (IFK), University of Stuttgart, Pfaffenwaldring 23, 70569 Stuttgart, GermanyDepartment of Flue Gas Cleaning and Air Quality Control, Institute of Combustion and Power Plant Technology (IFK), University of Stuttgart, Pfaffenwaldring 23, 70569 Stuttgart, GermanyDepartment of Flue Gas Cleaning and Air Quality Control, Institute of Combustion and Power Plant Technology (IFK), University of Stuttgart, Pfaffenwaldring 23, 70569 Stuttgart, GermanyAir pollution in urban areas is a huge concern that demands an efficient air quality control to ensure health quality standards. The hotspots can be located by increasing spatial distribution of ambient air quality monitoring for which the low-cost sensors can be used. However, it is well-known that many factors influence their results. For low-cost Particulate Matter (PM) sensors, high relative humidity can have a significant impact on data quality. In order to eliminate or reduce the impact of high relative humidity on the results obtained from low-cost PM sensors, a low-cost dryer was developed and its effectiveness was investigated. For this purpose, a test chamber was designed, and low-cost PM sensors as well as professional reference devices were installed. A vaporizer regulated the humid conditions in the test chamber. The low-cost dryer heated the sample air with a manually adjustable intensity depending on the voltage. Different voltages were tested to find the optimum one with least energy consumption and maximum drying efficiency. The low-cost PM sensors with and without the low-cost dryer were compared. The experimental results verified that using the low-cost dryer reduced the influence of relative humidity on the low-cost PM sensor results.https://www.mdpi.com/1424-8220/21/3/804low-cost sensorPM sensorair quality sensorlow-cost dryerhumidity influence on PMair pollutants |
| spellingShingle | Abdul Samad Freddy Ernesto Melchor Mimiaga Bernd Laquai Ulrich Vogt Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality Sensors low-cost sensor PM sensor air quality sensor low-cost dryer humidity influence on PM air pollutants |
| title | Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality |
| title_full | Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality |
| title_fullStr | Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality |
| title_full_unstemmed | Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality |
| title_short | Investigating a Low-Cost Dryer Designed for Low-Cost PM Sensors Measuring Ambient Air Quality |
| title_sort | investigating a low cost dryer designed for low cost pm sensors measuring ambient air quality |
| topic | low-cost sensor PM sensor air quality sensor low-cost dryer humidity influence on PM air pollutants |
| url | https://www.mdpi.com/1424-8220/21/3/804 |
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