Development of scale-up enabling technique using constant temperature anemometry for turbulence measurement in flotation cells

2020 ◽  
Vol 159 ◽  
pp. 106632
Author(s):  
E. Amini ◽  
W. Xie
2010 ◽  
Vol 23 (11-13) ◽  
pp. 877-884 ◽  
Author(s):  
J. Yianatos ◽  
F. Contreras ◽  
P. Morales ◽  
F. Coddou ◽  
H. Elgueta ◽  
...  
Keyword(s):  
Scale Up ◽  

1995 ◽  
Vol 8 (10) ◽  
pp. 1185-1195 ◽  
Author(s):  
C.T. O'Connor ◽  
P.J.T. Mills

1969 ◽  
Vol 37 (4) ◽  
pp. 701-713 ◽  
Author(s):  
D. G. Malcolm

This investigation demonstrates the measurement of low turbulence intensities in a flow of mercury using the constant-temperature hot-film technique. A simple equation for the determination of turbulence intensity is derived on the basis of observed calibration data for short, cylindrical, quartz-insulated, platinum hot-film sensors. This equation has the advantage of being independent of the changeable effects at the sensor-fluid interface and of the usually troublesome drift in anemometer output signal. The flow speeds considered are low, so that the Péclet number based on the outside diameter of the insulated sensor is less than unity. Various problems associated with the application of hot-film anemometry to mercury flows are discussed.


Author(s):  
L.E. Murr ◽  
J.S. Dunning ◽  
S. Shankar

Aluminum additions to conventional 18Cr-8Ni austenitic stainless steel compositions impart excellent resistance to high sulfur environments. However, problems are typically encountered with aluminum additions above about 1% due to embrittlement caused by aluminum in solid solution and the precipitation of NiAl. Consequently, little use has been made of aluminum alloy additions to stainless steels for use in sulfur or H2S environments in the chemical industry, energy conversion or generation, and mineral processing, for example.A research program at the Albany Research Center has concentrated on the development of a wrought alloy composition with as low a chromium content as possible, with the idea of developing a low-chromium substitute for 310 stainless steel (25Cr-20Ni) which is often used in high-sulfur environments. On the basis of workability and microstructural studies involving optical metallography on 100g button ingots soaked at 700°C and air-cooled, a low-alloy composition Fe-12Cr-5Ni-4Al (in wt %) was selected for scale up and property evaluation.


Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
RS Barboza ◽  
BR Rocha ◽  
AC Siani ◽  
LMM Valente ◽  
JL Mazzei
Keyword(s):  

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