Henggen Shen

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The current respirator fit test panels (RFTPs) developed by Los Alamos National Laboratory or improved by the National Institute for Occupational Safety and Health were based on facial anthropometric survey of American groups including few Chinese examples. Facial anthropometric dimensions for other race/ethnic groups are different. Despite the fact that(More)
The current respirator fit panels in computer supported cooperative design, which is based on facial anthropometric survey of the American groups, may not represent other races. This study was conducted to investigate the differences of facial anthropometric dimensions between the Chinese and the American, and to establish new respirator fit panels(More)
Size- and time-dependent aerodynamic behaviors of indoor particles, including PM1.0, were evaluated in a school office in order to test the performance of air-cleaning devices using different filters. In-situ real-time measurements were taken using an optical particle counter. The filtration characteristics of filter media, including single-pass efficiency,(More)
This paper were to employ gas and particle two phase flow mathematical model, applying in professional fluid dynamics software FLUENT, It is a PISC coupling calculation method for making gas and particle flow research before dust explosion. Experiment had shown which lead to relatively strong dust explosion in a weak shock wave flow and horizontal pipeline(More)
New principal component analysis (PCA) respirator fit test panels had been developed for current American and Chinese civilian workers based on anthropometric surveys. The PCA panels used the first two principal components (PCs) obtained from a set of 10 facial dimensions. Although the PCA panels for American and Chinese subjects adopted the bivairate(More)
A numerical simulation was carried out on the High Temperature Air Combustion of coal gas in an industrial furnace with a multi-jet burner. The effect of jet parameters on NOx emission, temperature and oxygen distribution was investigated. A Beta function PDF(Probability Density Function) combustion model was selected to simulate the gas combustion combined(More)
The authors theoretically studied the entropy generation during heat transfer of a pin fin array in channels with lateral ejection holes for a turbine blade. The entropy generation model was established based on the second-law analysis. The distribution of the entropy generation due to heat transfer and fluid friction irreversibility respectively was(More)
In November 2015, the PM2.5 and PM10 particulate matter (PM) levels in platforms, station halls, and rail areas of the Shangcheng and Jiashan Road Station were monitored to investigate air pollution in the Shanghai subway system. The results revealed that in subway stations, PM2.5 and PM10 concentrations were significantly higher than those in outdoor(More)
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