Research on Diffusion and Control Technology of Welding Fume
Lin Dajian,
Zhou Hong,
Li Liangfei
Issue:
Volume 6, Issue 1, February 2017
Pages:
1-7
Received:
14 February 2017
Accepted:
24 February 2017
Published:
18 March 2017
Abstract: Welding fume has the characteristics of small particle size, large damage and difficult to handle. This paper uses the Gambit software and Fluent software to simulate the wind speed, spot spacing and vertical distance factors affecting diffusion welding fume, get the diffusion characteristics of welding fume: in the same section, the greater the spacing, the lower the concentration decreased more quickly; in the same distance, the height of different dust source in the vertical direction, different concentration of welding fumes, smoke concentration is undergoing a process of first increased and then decreased. And put forward, using centrifugal swirl air diffusion, control technology for welding fume entrainment and stratification theory and technology, to achieve effective control of welding fume and energy saving.
Abstract: Welding fume has the characteristics of small particle size, large damage and difficult to handle. This paper uses the Gambit software and Fluent software to simulate the wind speed, spot spacing and vertical distance factors affecting diffusion welding fume, get the diffusion characteristics of welding fume: in the same section, the greater the sp...
Show More
Influence of Labor Transfer on Rural Households Coal Consumption
Wang Ping,
Zhu Min,
Zheng Yanan,
Gu Jingge
Issue:
Volume 6, Issue 1, February 2017
Pages:
8-13
Received:
25 January 2017
Accepted:
8 February 2017
Published:
28 March 2017
Abstract: With the development of economic in rural area, the increase number of labor transfer made farmers’ income more and more, and the energy consumption especially the coal has also changed constantly. Using the data of “Labor Migration and rural life energy survey” in Shannxi province, by the Tobit regression model to analyze that the influence of labor transfer on rural households coal consumption. The results show that the increasing number of labor transfer made the household coal consumption significantly decreased. The increase of labor transfer raises the household coal consumption; The proportion of labor transfer income to family income shows negative relation with the farmers’ coal consumption. Finally, some useful suggestions on how to raising farmers’ income and energy usage, thus promoting the continuous development of new countryside construction.
Abstract: With the development of economic in rural area, the increase number of labor transfer made farmers’ income more and more, and the energy consumption especially the coal has also changed constantly. Using the data of “Labor Migration and rural life energy survey” in Shannxi province, by the Tobit regression model to analyze that the influence of lab...
Show More
