The NuNRG Reformers system includes an electrolyser that breaks down deionised water into its constituent elements - hydrogen and oxygen -and injects them into the vehicle's air intake. At standard operating temperature of 50℃, water vapour is about 25% of the mix by volume, although it is produced in some quantity even at cold startup. The 24V sealed unit, which only operates when the engine is running, draws 9.5A DC from the alternator; an LCV version, rated at 12V, draws 9A. Both units consist of 12 stainless steel electrodes in a 1% potassium hydroxide (alkaline) electrolyte fed by a 1 -litre water tank. The system costs £3,500 plus VAT to install, plus an ongoing maintenance cost of £500 per year, consisting of an operational check and possibly replacement of electrical connections, if they have been corroded by exposure to external moisture.
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