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Evolution of particle size distribution and water content for oily particles in machining workshops
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- Liu, Fei (author)
- KTH,Hållbara byggnader,Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
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- Liu, Wei, Assistant Professor, 1987- (author)
- KTH,Hållbara byggnader,Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
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- Long, Zhengwei (author)
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
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- Elsevier BV, 2024
- 2024
- English.
- In: Journal of Building Engineering. - : Elsevier BV. - 2352-7102. ; 84
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The oily particles produced by aerosolization of the Metalworking fluids (MWFs) pose a threat to human health. To quantify the transmission of oily particles for developing mitigation strategy, the possible particle volatilization, adhesion and coagulation during air transmission should be determined. Therefore, this study firstly by measured the particle size distributions at and away from the emission source in the laboratory. Then, to further verify the results obtained in the laboratory, the particle size distributions of oily particles in a machining workshop were measured. Meanwhile, to better understand the source characteristic of oily particles, this investigation measured the water content of the oily particles in the machining workshop because such a parameter could affect the removal performance of oily particles by filtration. The results revealed that the particle size distributions of oily particles at different locations were similar regardless of the laboratory measurement or on-site measurement. Thus, the evolution of particle size distribution of oily particles during air transmission could be ignored. Besides, the oily particles in the air had a water content of 22.6 % when the MWFs with a water content of 95 % was used during turning process. Although the oily particles in the air contained a certain amount of water, they were difficult to volatilize. The oily particles in the air might mainly consist of pure oily particles and water-in-oil particles. The results in this study could provide guidance for developing better control strategies of oily particles in machining workshops.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Building Technologies (hsv//eng)
Keyword
- Exposure
- Metalworking fluids
- Particle size distribution
- Ultrafine particle
- Fluids
- Health risks
- High resolution transmission electron microscopy
- Light transmission
- Metal working
- Particle size
- Size distribution
- Transmissions
- Water filtration
- Aerosolization
- Emission sources
- Human health
- Mitigation strategy
- Particles-size distributions
- Source characteristics
- Volatilisation
- Particle size analysis
Publication and Content Type
- ref (subject category)
- art (subject category)
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