Northern electromagnetic heating photovoltaic energy storage

Can molten salt energy storage reduce wind and Solar Energy Curtailment?

The use of molten salt energy storage in conjunction with a cogeneration unit for peak shaving can effectively reduce the incidence of wind and solar energy curtailment. The multi-steam source energy storage mode is proposed based on the heat transfer characteristics of molten salt.

Which medium is used for heat storage?

The most commonly utilized mediums for heat storage are solar salt and HITEC salt. The parameters of the molten salt are presented in Table 2. Table 2 The characteristics of the molten salt. 30% of the energy carried by high-temperature steam is sensible heat, while 70% is latent heat.

What is molten salt energy storage?

Molten salt energy storage finds applications in photovoltaic power generation, heat treatment, and electrochemical treatment 1. A series of studies and experiments involving molten salts have been conducted at Sandia Labs and various national research institutions across the EU.

What is a multi-steam source heating storage mode?

Under the multi-steam source heating storage mode, a portion of live steam and reheat steam is extracted into a heat exchanger for sensible heat exchange with cold molten salt. Following this heat exchange, the cold molten salt is converted into hot molten salt with improved liquidity. The hot molten salt is then stored in a tank for heat storage.

What is a single steam source heating storage approach?

In the single steam source heating storage approach, the sensible heat of high-temperature steam is utilized, while low-temperature steam is discharged into the condenser without further use after heat exchange, leading to increased cold-source losses and a decrease in thermal efficiency.

What is the maximum heat storage capacity for multi-steam source heating?

In the multi-steam source heating storage mode, the maximum heat storage capacity is elevated to 50 MW, with a peak shaving depth of 13.2%. Notably, the maximum depth of peak shaving under both heating modes is comparable; however, the heat storage capacity is greater in the multi-steam source heating configuration.