This study proposes a gravity energy storage system and its capacity configuration scheme, which utilizes idle steel blocks from industry overcapacity as the energy storage medium to enhance renewable energy integration and lower corporate electricity costs.
One important objective of the steel plant is to improve energy utilization efficiency and reduce energy costs while ensuring the completion of steel production plan . With the development of energy management system, it is possible to implement efficient load control and system operation of MEMG, which has drawn widespread attention .
What is a thermal energy storage system based on a dual-media packed bed?
A thermal energy storage system based on a dual-media packed bed is proposed as low-cost and suitable technology, using a by-product produced in the same plant, the steel slag, as filler material. The main objective of this system is to achieve a continuous heat supply from the inherent batch operation of the steel furnace.
What is steel plant based MEMG?
The structure of steel plant-based MEMG with steelmaking process. One important objective of the steel plant is to improve energy utilization efficiency and reduce energy costs while ensuring the completion of steel production plan .
How to use stored waste heat in steelmaking plant?
Regarding the utilization of the stored waste heat, the preferential application found in literature is the production of electricity in the steelmaking plant through Organic Rankine Cycle (ORC) turbines , . This technology shows a great flexibility able to adapt to the fluctuations derived from the batch operation of the EAF.
The steel plant can be regarded as a large-scale flexible load where the flexibility can be achieved through the optimization of the steel manufacturing process. The steel production is divided into 7 single processes, and each process is comprised of raw material input, production output and intermediate storage.
How energy-intensive is steel production?
Steel production is one of the most energy-intensive industries on demand side. Highly distributed energy resource-penetrated multi-energy microgrids (MEMGs) with (CHP) units can supply both electricity and heat while the by-product coal gases during manufacturing can be reused for onsite power supply.