Translation of "Stromwärme" in English

One example thereof is the combination of Joule heat and irradiation.

Current-generated heat can be radiated and fed away from the surface of the electrical contact element.

At almost 1000 °C, the thermal equilibrium is maintained through joule heating.

The application of a supply voltage to the resistance cable generates heat.

In accordance with the invention a considerable proportion of the electric heat is used for increasing the concentration of the sulphuric acid without additional vaporisation stages.

Such slip rings are subject to a large amount of wear, lead to frictional losses, and cause undesired electrical heat.

The heat generated thereby can now be dissipated freely to the outside by the metallic contact tube 4.

The generator generally is heated up by that joulean heat so that the moisture evaporates.

Curing occurs via Joule heat in 2 stages, followed by a UV curing station.

With the disconnect switch 1 in closed position, the operating current thus flows from the field electrode 4 via the movable contact electrode 7 to the field electrode 5 so that the heating effect of the current can dissipate to the outside unobstructed.

The Joule heat produced in the superconducting elements is advantageously small because of the low conductivity, and the temperature drops rapidly below the transition temperature of the superconductor because of the good cooling action from several sides.

With respect to cells having a high coating power, the majority of the generated current heat is dissipated over evaporating solvent which condenses at the cooler surfaces of the tank hood and returns into the electrolyte bath.

A further point is that on using such a direct voltage, electrolytic effects are caused in the suspension medium and denaturing effects are caused in the membrane protein because of the overgreat heating effect caused by the flow of current.

Under these conditions, the transformettes were dried and degassed for 1 to 2 hours, while the drying of the windings was partially aided by the Joule heat in the conductor.

The energy delivered through the electrodes is converted, in the region of the resistor layer assigned to each pixel, into electrical heat that leads to melting of the ink of the ink layer located in that region.

The energy supplied through these electrodes is converted, in the resistance layer region associated with each pixel, into resistance (Joulean) heat that leads to the melting of the ink located in the ink layer in that region and therefore to the imprinting of a dot.

Such electric arcs often occur during the opening of contacts due to steaming of the last metallic bridges, caused by joulean heat.

With respect to cells having a high coating power, the majority of the generated current heat is dissipated over evaporating solvent which condenses at the cooler surfaces of the tank hood and returns into the electrolyte bath.

For mechanical and electrochemical reasons and in order to dissipate heat generated by the Joule effect, the rate at which electrolyte is supplied and the distance between the strip metal and the anode must be increased correspondingly.

Because this may take place at an ever increasing rate, so that the switched-on intervals become shorter and shorter, the bimetallic strip and the contact faces are likely to be damaged by the heating effect of the electric current, the contact assembly no longer being able to take up and dissipate such heat in the desired way.

The cover or hood, which form the protective chamber over the plurality of cells forming the electroplating tank serves as a condensation zone for the toluol which evaporates from the electrolyte as a result of the current heating that occurs during the electroplating process.

According to the invention, these and other objects are achieved by the provision that the EP/IC resins, which optionally include additives, are dried at reduced pressure and at temperatures up to 110° C. and while stirring; that the electrical windings are dried and impregnated or cast-in with the dried EP/IC resins at reduced pressure and at temperatures of up to 110° C.; that the reduced pressure is removed and an overpressure is applied; and that by the temperature generated by Joule heat in the conductor of the electrical winding, the cross-linking reaction of the EP/IC resins is initiated and is controlled, as a function of the reaction heat, to produce cross-linked OX/ICR molded material.

The formation of gaseous carbon dioxide through reaction of isocyanate with residual water in the winding is largely suppressed since the reaction time for the formation of CO2 is reduced considerably by initiating the cross-linking of the EP/IC resins immediately after the impregnation or casting process by generation of the Joule heat in the conductor.