Electric furnace laboratory equipment at seattle station, U. S. Bureau of Mines

Pyrheliometer Calibration Program of the U . S . Weather Bureau

A new system developed for calibrating the horizontal incidence pyrheliometer is described. The pyrheliometers to be calibrated are exposed simultaneously with a standard pyrheliometer in an integrating sphere. Calibrations are made by comparing voltages developed by the instruments undergoing calibration with those of the standard pyrheliometer. Calibration of the standard pyrheliometer is bas...

Standardization of laboratory equipment.

Application of Numerical Methods to Extended Forecasting Practices in the U . S . Weather Bureau

New procedures are described for applying numerical methods to extended forecasting. These form a firm base which serves as a point of departure for the final forecast. The methods are sufficiently organized that training and actual forecasting are speeded up and the level of skill of prediction is higher than ever before.

Vitrification of electric arc furnace dusts.

Electric arc furnace baghouse dust (EAFD), a waste by-product of the steelmaking process, contains the elements that are volatilized from the charge during the melting (Cr, Pb, Zn, Cu and Cd). The results of leaching tests show that the concentration of these elements exceeds the regulatory limits. Consequently, EAFD cannot be disposed of in ordinary landfill sites without stabilization of the ...

Recycling Evaluation of Mill Scale in Electric Arc Furnace

A considerable amount of mill scale is generated from steelmaking plants annually. Although some industries use it as raw material however, since it contains iron in the form of FeO, Fe2O3, and Fe3O4, it can be considered as a valuable metallurgical raw material for iron and steelmaking industry as well. Thus, the aim of this study was to evaluate the possibility, efficiency, and consequences o...