Operating modes and performance evaluation of an SOFC-CCHP system considering source-load matching

被引：3
作者：
Zhu, Yu [1 ,2 ]
Liu, Yixi [1 ]
Mei, Shuxue [1 ]
Wang, Shixue [1 ,2 ]
机构：
[1] Tianjin Univ, Sch Mech Engn, Tianjin, Peoples R China
[2] Tianjin Univ, Natl Ind Educ Platform Energy Storage, Tianjin, Peoples R China
来源：
ENERGY CONVERSION AND MANAGEMENT | 2024年 / 316卷
关键词：
Solid oxide fuel cells; Combined cooling; heating and power; Residential loads; Operating strategy; Thermal energy storage; CELL-COMBINED HEAT; POWER-SYSTEM; OPTIMIZATION; DISPATCH; STRATEGY; DESIGN;
D O I：
10.1016/j.enconman.2024.118830
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The operating performance of a solid oxide fuel cell (SOFC) combined cooling, heating, and power (CCHP) trigeneration system was analyzed for various operating modes and thermal energy storage configurations to meet the load demands of residential buildings. Three layouts were considered based on different positions of the thermal energy storage tanks, with three SOFC operating modes for a total of five analyses. The simulations include the building heating and cooling loads, the SOFC power generation system, and the CCHP system. The energy and exergy changes were used to calculate the load coverage ratio, energy efficiency and exergy efficiency. These indicators describe the operating performance and thermodynamic properties of each case over a year-long operating cycle. The results show that the thermal load following case with variable operating conditions gives the best thermodynamic efficiency. The load-side thermal energy storage case with constant operating conditions enables the SOFC-CCHP system to operate efficiently during the highest load seasons, especially significantly improves the "source-load" matching.
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页数：18
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