Showing papers in "Journal of the Institution of Electrical Engineers in 1905"

Studies in magnetic testing

Abstract: ?Introduction?Magnetic units?Effect of continued reversals of the magnetic force?Apparent induction and permeability?Demagnetisation by reversals?Normal induction and permeability?The critical magnetic force?Apparent and normal intensity of magnetisation?Magnetic history?Method of demagnetisation?Determination of the normal induction and permeability?Transformer iron used in the experiments?The magnetic square?Tests of the magnetic square?Preliminary magnetometric experiments?Preliminary ballistic experiments?Effects of many reversals of a force X upon the apparent permeability of a smaller force H?Influence of many reversals of a force X upon the after-effects of a force Y?Influence of partial demagnetisation on the after-effects of a large force?Effect of a constant force X on the apparent permeability for a force H?Experiments on virgin iron?Magnetometric study of the action of effective demagnetisation on virgin iron?Ballistic study of the action of effective demagnetisation on virgin iron?Experiments on virgin, demagnetised and magnetised iron?Rowland's experiments?Influence of partial demagnetisation on the permeability of virgin iron?Constancy of the specimens?The preparation of specimens?Want of uniformity of specimens?Conclusion.

Fuel economy in steam power plants

Abstract: Introduction. Feed-water: Analysis?Systematic control of supplies?Softening?Scale and grease troubles?Preheating?Thermal Storage. Fuel: Sampling?Testing?Systematic control of supplies?Suitability for boiler-furnace. Air: Preheating primary and secondary air supply. Boilers and Furnaces: Types of?Setting?Hand-firing v. mechanical stoking?Losses by radiation and air-leakage?Smoke prevention. Steam: Superheating?Condensation and radiation losses. Waste Gases: Heat losses in?Sampling?Testing?Systematic control of. Draught and Regulation of Air Supplies: Natural v. artificial graught.