Xi’an Huijin Tech’s molten salt storage-applied HV electromagnetic induction tech has been given an important endorsement. Based in China’s Shaanxi Province, Huijin is CISDI Group’s spearhead of new materials. 

It has been chosen as one of the Chinese Ministry of Industry and Information Technology’s energy conservation, carbon reduction tech and equipment recommendations for 2024.

The molten salt storage plays a significant role in balancing grid electric loads and improving renewable energy’s utilisation efficiency.

CISDI’s tech has a flexible induction power source which is directly connected with a high-voltage grid, slashing the cost normally required by a transformer and cables.

The molten salt piping is directly heated by the induction power, creating a highly-efficient turbulent heat exchange between the salt and the piping. This method results in much higher safety and power density.

CISDI’s first HV large-power molten salt storage induction heater was delivered in December 2023. It was applied at a demo project combining photothermal energy storage, photovoltaic and wind power generation in Yumen City, which is based in China’s Gansu Province. The heater is expected to consume around 10MWh of wasted electricity per hour.

It will bring about a major transformation of China’s energy storage landscape by stepping up the industrialisation of valley load power’s steam supply and the regulation of peak load power from the molten salt storage unit.

The breakthrough lies in the high-voltage grid’s direct connection and resulting benefits of small line loss, large single power, long service life, uniform heat exchange and enhanced heat exchange efficiency and high insulation.

These could not be achieved by the original form of molten salt storage-applied low-voltage and ohmic heaters anywhere in the world.

CISDI’s invention boasts a higher standard of HV heater. It features an overall efficiency of over 97 per cent in terms of working reliability, stability and energy saved.

Its fast, accurate heating of the molten salt at a high power directly by high-voltage electricity up to 35 kilovolts, means the induction heater has bright prospects in applications for new energy’s wasted electricity storage, flexible modification to thermal power generation and industrial steams supply from valley load’s power storage.

CISDI’s HV, large-power molten salt storage induction heater being delivered