Analysis of coal energy storage ratio index

Can a coal-fired power plant be integrated with a liquid CO2 energy storage system?

System description The integration of the coal-fired power plant (CFPP) with the liquid CO 2 energy storage (LCES) system has here been suggested for the enhancement of the operational flexibility of the CFPP and the efficiency of the LCES system.

Which energy storage system is used for Advanced exergy analysis?

Discussion Ref. focuses on the transcritical compressed carbon dioxide energy storage (TC-CCES) system, while this paper focuses on the LCES system for advanced exergy analysis. The energy storage systems studied in the two papers are similar in structure, so the results are compared and discussed.

What is exergy destruction ratio?

Breakdown of exergy destruction for each component. In the conventional exergy analysis, the relative exergy destruction ratio () is chosen as an indicator for the evaluation of the improvement potential, while the avoidable exergy destruction ratio () is chosen as the indicator in the advanced exergy analysis.

Why is coal-fired power generation a challenge to grid peaking?

However, the volatility and discontinuity of renewable energy lead to a huge challenge to the grid peaking . The coal-fired power generation technology has been considered to be used, which is due to its reliable operation and large peaking capacity . In fact, more and more coal-fired power plants (CFPPs) are used for the peaking .

How efficient is a coal-fired power plant?

The maximum equivalent round-trip efficiency of the proposed system is 50.81%. The minimum payback period is 13.5 years. To accommodate high penetration of intermittent renewable power, including wind power and photovoltaic power, coal-fired power plants (CFPPs) are forced to enhance operational flexibility.

Can coal-fired power plants be integrated with P2H and thermal energy storage?

Coal-fired power plants integrated with P2H and thermal energy storage were proposed. The operational flexibility of the integrated system is determined. Exergy destructions and flows within the proposed systems are calculated. The maximum equivalent round-trip efficiency of the proposed system is 50.81%. The minimum payback period is 13.5 years.