Investigations on nano- and submicron-particle generation by spray painting processes

Author:

Ye Qiaoyan1,Tiedje Oliver1,Srinivas Shreyas Rohit1,Noest Thomas2,Uhrner Uhrrich2

Affiliation:

1. Fraunhofer Institute for Manufacturing Engineering and Automation, Stuttgart

2. Institute of Internal Combustion Engines and Thermodynamics Graz University of Technology, Graz

Abstract

This paper presents experimental and numerical studies to determine the particle size distributions (PSD) and concentrations in paint overspray. Two kinds of paint materials, solvent borne and water borne paints, both with and without manufactured nanomaterials (pigments), and an industrial spray gun were used. Different aerosol measuring techniques, namely the Spraytec Fraunhofer type particle sizer for micro-sized droplets in the spray jet and the Scanning Mobility Particle Sizer (SMPS) for nano particles in paint overspray were applied. It was found, that solvent borne clear coats create significantly higher number concentration of nano-sized droplets than the water borneprimers. Only small differences in PSD between paints with and without manufactured nanomaterials were found. Numerical simulations of droplet trajectories within the spray booth, for both micro and nano sized droplets, were carried out. Based on the experimental and numerical results, a representative particle size distribution (smaller than 1 μm) for the given spray gun was obtained. Effects of turbulence models on the particle deposition on targets, especially for submicron particles, have been analysed in detailed.DOI: http://dx.doi.org/10.4995/ILASS2017.2017.4666

Publisher

Universitat Politècnica València

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Influence of the valve on the performance of two cylindrical valved holding chambers;Powder Technology;2023-01

2. Study of the heat transfer and analysis of the surface characteristics of robot spray painting by using Taguchi method and ANOVA analysis;Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering;2021-12-22

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