改装
发电站
可再生能源
调峰发电厂
联合循环
工程类
发电
火力发电站
工艺工程
基本负荷发电厂
储能
可靠性工程
汽车工程
功率(物理)
电气工程
分布式发电
机械工程
涡轮机
物理
结构工程
量子力学
作者
Jacek D. Wojcik,Jihong Wang
出处
期刊:Energies
[MDPI AG]
日期:2017-02-11
卷期号:10 (2): 205-205
被引量:25
摘要
The current load balance in the grid is managed mainly through peaking fossil-fuelled power plants that respond passively to the load changes. Intermittency, which comes from renewable energy sources, imposes additional requirements for even more flexible and faster responses from conventional power plants. A major challenge is to keep conventional generation running closest to the design condition with higher load factors and to avoid switching off periods if possible. Thermal energy storage (TES) integration into the power plant process cycle is considered as a possible solution for this issue. In this article, a technical feasibility study of TES integration into a 375-MW subcritical oil-fired conventional power plant is presented. Retrofitting is considered in order to avoid major changes in the power plant process cycle. The concept is tested based on the complete power plant model implemented in the ProTRAX software environment. Steam and water parameters are assessed for different TES integration scenarios as a function of the plant load level. The best candidate points for heat extraction in the TES charging and discharging processes are evaluated. The results demonstrate that the integration of TES with power plant cycle is feasible and provide a provisional guidance for the design of the TES system that will result in the minimal influence on the power plant cycle.
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