ELECTRODE
STEAM BOILER

Introduction to
High Capacity Electric Boilers using
High Voltage Electrodes for Steam Production

QUICK ENTRANCE

Boilermaker	AB&CO
Models	Vertical Types
Steam Capacities	Up to ~ 75 T/h (50 MW)
Operational Pressure	Op til 20 bar overtryk
Energy Source - Type	Electrical (Electrodes)
Energy Source - Voltage	High Voltages 3-phase 6 - 25 kV
Introduction to Other Types of Steam Boilers
	Conventional Electric Steam Boilers
	Compact Steam Generators (for oil/gas)
	Fire-Tube Steam Boilers (for oil/gas)
	All Other Types of Steam Boilers
Steam Table	Properties in Dry Saturated Condition

Danish Version :

You can produce about 1½ kg/h steam at for instance 10 barg – for each kW electrical power output. A 10 tons steam boiler thus require just below 7 MW @ feed water 70°C.

For a conventional 10 T/h electric steam boiler using resistant type heating elements 3 x 400 V voltage, this will require a electrical current of almost 10,000 A (Ampere / Amp). This means extremely large square dimensions cables and likewise huge electrical components / equipment.

If you instead use high voltage of for instance 3 x 10 kV, the above steam boiler will require only abt. 400 A and therefore far less extensive cables and components. However, you will need the special high-voltage design of both cables and components.

Electrode steam boilers use high voltage electricity as energy source and can therefore deliver large steam amounts using relatively low electrical current (Amp.)

The principle is simple and often used – you utilise the boiling water directly as the electrical conductor.

The resistance together with electrical current of the water between the two electrodes develop and release energy. This energy will be used to heat up and evaporate water into saturated steam – and off course in a fully safe way like any other steam boilers.

PRINCIPLE SKETCH - FLOW DIAGRAM