.jpg)
_.jpg)
Analysis of coupling characteristics between solar energy and compressor extraction energy storage gas turbine CHP system
Vol 5, Issue 2, 2022
VIEWS - 405 (Abstract) 273 (pdf)
Abstract
The regulation of compressor extraction and energy storage can improve the performance of gas turbine energy system. In order to make the gas turbine system match the external load more flexibly and efficiently, a gas turbine cogeneration system with solar energy coupling compressor outlet extraction and energy storage is proposed. By establishing the variable condition mathematical model of air turbine, waste heat boiler and solar collector, we use Thermoflex software to establish the variable condition model of gas turbine compressor outlet extraction, and analyze the variable condition of the coupling system to study the changes of thermal parameters of the system in the energy storage, energy release and operation cycle. Taking the hourly load of a hotel in South China as an example, this paper analyzes the case of the cogeneration system of solar energy coupling compressor outlet extraction and energy storage, and compares it with the benchmark cogeneration system. The results show that taking a typical day as a cycle, the primary energy utilization rate of the system designed in this paper is 3.2% higher than that of the traditional cogeneration system, and the efficiency is 2.4% higher.
Keywords
Full Text:
pdfReferences
1. Gao C, Xiao B, Yin H, et al. Energy storage participating in thermal power peaking and configuration in background of new energy: A review. Thermal Power Generation 2019; 48(10): 38–43.
2. Ma D. Introduction of distributed energy supply cogeneration system of cooling, heating and elec-trics. Inner Mongolia Electric Power 2011; 29(1): 9–10.
3. Wang T, Song W. Discussion on the technologies of combined cooling, heating and power. Applied Energy Technology 2010; (3): 35–38.
4. Zhu J, Shi L. Application and development of gas CCHP system. Huadian Technology 2014; 36(10): 73–76, 80.
5. Yang C, Liu H, Wang P, et al. Economic analysis on peak-regulation of GTCC cogeneration unit with extraction heating. Proceedings of the CSEE 2020; 40(2): 592–601.
6. Xu K, Li W, Li M, et al. Analysis on heat supply performance of gas-steam combined cycle cogeneration units. Thermal Power Generation 2019; 48(5): 1–7.
7. Yang C, Huang M, Wang P, et al. Analysis on improving flexibility of a gas turbine-based energy system with compressor bypass air extraction for energy storage. Proceedings of the CSEE 2018; 38(18): 5510–5517.
8. Liang L, Chen M, Duan L, et al. Research progress of thermal energy storage technology in solar thermal power generation and combined heat and power generation. Thermal Power Generation 2020; 49(3): 8–15.
9. Ji J, He Y. Strategic research on basic theory and key technology of solar thermal power generation system. Bulletin of National Natural Science Foundation of China 2009; 23(6): 331–336.
10. Yang C, Wang X, Zhang C, et al. Performances of gas turbine-based CCHP system combined with solar and compressed air energy storage. Pro-ceedings of the CSEE 2017; 37(18): 5350–5358.
11. Li H, Nalim R, Haldi PA. Thermal-economic optimization of a distributed multi-generation energy system: A case study of Beijing. Applied Thermal Engineering 2006; 26(7): 709–719.
12. Zhang N, Cai R. Analytical solutions and typical characteristics of part-load performances of single shaft gas turbine and its cogeneration. En-ergy Conversion and Management 2002; 43: 1323–1337.
13. Wang S, Fu Z, Xu L, et al. Analysis on typical daily hourly thermodynamic characteristics of integrated solar combined cycle system. Thermal Power Generation 2020; 49(3): 16–22.
14. Dudley VE, Koib GJ, Mahoney AR, et al. Test results SEGS LS-2 solar collector SAND 94-1884. New Mexico: Sandia National Laboratories; 1994. p. 15.
15. Montes MJ, Abanades A, Martinez-Val JM, et al. Solar multiple optimizations for a solar-only thermal power plant, using oil as heat transfer fluid in the parabolic trough collectors. Solar Energy 2009; 83(12): 2165–2176.
16. Behar O, Khellaf A, Mohammedi K. A novel parabolic trough solar collector model—Validation with experimental data and comparison to engi-neering equation solver (EES). Energy Conversion and Management 2015; 106: 268–281.
17. Zhao L. Shuibeng xingneng quxian de jiexi biaoda fangfa (Chinese) [Analytical expression method of pump performance curve]. China Rural Water and Hydropower 1992; (9): 38–39.
18. Liang Z, Chen Y, Xiao X, et al. Analysis on characteristics of cooling, heating and power loads of three commercial buildings in Guangzhou. Building Science 2012; 28(8): 13–20.
DOI: https://doi.org/10.24294/tse.v5i2.1534
Refbacks
- There are currently no refbacks.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This site is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.