A method for operating a solid oxide fuel cell having cathode-anode-electrolyte units, each including a first electrode for an oxidizing agent, a second electrode for combustible gas, and a solid electrolyte there between forming a metal interconnection between the CAE-units. The interconnect including a combustible gas distribution structure, and a second metallic gas distribution element having two channels for the oxidizing agent and separate channels for a tempering fluid. Cooling the second gas distribution element and a base layer of the first gas distribution element with the tempering fluid (O2). Measuring the first and second control temperatures T1 and T2. T1 being the tempering fluid temperature entering the fluid inlet side of the fuel cell. T2 being the tempering fluid temperature leaving the second gas distribution element. Where the amount of tempering fluid supplied to the second gas distribution element is controlled based on the difference between T1 and T2.

The present invention provides a method and a system for synthesizing a combustible gas composition as well as a combustible gas composition obtained by such a method. In particular, the method comprises providing a primary gas (30) obtained by splitting water (12) by means of an electric field; and mixing the primary gas (30) with a secondary gas (44) and with air, wherein the secondary gas (44) comprises a combustible gaseous hydrocarbon.

A hydrogen and oxygen (HHO) gas on-demand electrolysis fuel cell system for use with internal combustion engines is disclosed. This hydrogen on-demand (HOD) system integrates with the engine control module (ECM) or other control system that regulates the operation of an internal combustion engine in order to supply HHO to the engine and improve the engine's overall fuel efficiency. This system includes an electrolyte fluid reservoir outfitted with level, pressure and temperature sensors; a pump and heat exchanger; a uniquely-configured electrolyzer; and a filter. The combined engine and HOD system is controlled and regulated by an electronic control system (ECS) and a combustion control module (CCM). The CCM is installed on the engine such that it actively intercepts the electronic signals from the engine manufacturer's ECM to continuously coordinate the functions and operations of the HOD system and the engine.

A water electrolysis system includes a water electrolysis apparatus, an electric component, and a casing. The electric component is to operate the water electrolysis apparatus. The casing includes a housing chamber, an electric component chamber, and a buffering chamber. The housing chamber has a first ventilation air inlet to introduce external air into the housing chamber and houses the water electrolysis apparatus. The electric component chamber has a second ventilation air inlet to introduce the external air into the electric component chamber and houses the electric component. The first ventilation air inlet and the second ventilation air inlet are separate from each other. The buffering chamber is in communication with the first ventilation air inlet and the second ventilation air inlet. An air pressure in the buffering chamber is to be maintained at atmospheric pressure.

An electrochemical reaction device includes a first unit group having a plurality of first electrochemical reaction units and a second unit group having a plurality of second electrochemical reaction units. Respective electrolytic tanks of the plurality of first electrochemical reaction units are serially connected with each other. Respective electrolytic tanks of the plurality of second electrochemical reaction units are serially connected with each other. The electrolytic tanks of the plurality of second electrochemical reaction units are parallelly connected to the electrolytic tanks of the plurality of first electrochemical reaction units.

Methods for providing a metal surface structure and treatment process to prevent the corrosion (e.g., high electrochemical potential oxidization and hydrogen embrittlement) of a metallic component used in electrolyzer operational conditions. The oxide surface scale of a metal plate is used to prevent the corrosion, and electrical conductive materials such as e.g., precious metals or carbon are used to provide the surface electrical conductance of the metallic components. The methods advantageously produce, at a low cost, metal components for electrolyzers that need high electrical conductance and corrosion resistance for long term operation.

An electrolytic generator to produce a stoichiometric mixture of hydrogen gas and oxygen gas features a case penetration. An electrode extends through the case penetration and clamps a support plate to the inside of the case. The electrode and the support plate are electrically insulated from the case by a non-conducting bushing located within the case and between the support plate and the inside surface of the case. First and second plates are interleaved and maintained in a spaced apart relation along the first and second plate fasteners.