Model Study of Machining Aerosol Emission Rate and Particle Size Distribution

doi:10.11908/j.issn.0253-374x.19079

Home > Archive>Volume 48, Issue 01, 2020 >95-100. DOI:10.11908/j.issn.0253-374x.19079

Model Study of Machining Aerosol Emission Rate and Particle Size Distribution
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                        10.11908/j.issn.0253-374x.19079
                    
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                        WANG FeiWANG Fei
School of Mechanical Engineering, Tongji University, Shanghai 200092, China；School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
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LI ZhenhaiLI Zhenhai
School of Mechanical Engineering, Tongji University, Shanghai 200092, China
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WANG PengWANG Peng
Shanghai Poly Real Estate Development Co., Ltd., Shanghai 200232, China
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HUANG ChenHUANG Chen
School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
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Clc Number:TU834.5
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Abstract:

This paper introduces an aerosol atomization factor to calculate the mass emission rate of oil particles using the maximum fluid flow rate for atomization obtained from a theoretical model. The particle size distribution is obtained by the Rosin-Rammler function. An environmental chamber is used to obtain the mass median diameter and the distribution coefficient of the Rosin-Rammler function, as well as the aerosol atomization factor. The particle emission rate is then modelled for each particle size.The experimental data show that the mass emission rate of oil particles ranges from 14.58 to 620.95 mg?h-1. Both the particle emission rate and the aerosol atomization factor increase with tool rotational velocity. Moreover, the aerosol atomization factor is a linear function of the tool rotational velocity, with a determination coefficient R2 of 0.998. The model established in this paper represents the oil particle emission rate accurately for each particle size, with an average error of 3.69±12.7 mg?h-1.

Key words:metal work fluids (MWFs);aerosol;size distribution;prediction model.

Reference

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WANG Fei, LI Zhenhai, WANG Peng, HUANG Chen. Model Study of Machining Aerosol Emission Rate and Particle Size Distribution[J].同济大学学报(自然科学版),2020,48(01):95~100

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Received:March 08,2019
Revised:October 15,2019
Adopted:August 26,2019
Online: January 20,2020
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