太阳能与燃气-蒸汽联合循环互补性能分析

doi:10.3969/j.issn.2097-0706.2023.12.010

综合智慧能源 ›› 2023, Vol. 45 ›› Issue (12): 79-86.doi: 10.3969/j.issn.2097-0706.2023.12.010

• 优化运行与控制 • 上一篇

太阳能与燃气-蒸汽联合循环互补性能分析

耿直¹^,²^,³(), 陈柯宇¹, 刘媛媛², 张斌², 王剑利², 石天庆², 李芳², 顾煜炯⁴

1.郑州航空工业管理学院航空发动机学院，郑州 450046
2.华电郑州机械设计研究院有限公司，郑州 450046
3.清华大学能源与动力工程系，北京 100084
4.华北电力大学国家火力发电工程技术研究中心，北京 102206

收稿日期:2023-05-17 修回日期:2023-06-17 出版日期:2023-12-25 发布日期:2023-08-23
作者简介:耿直（1991），男，讲师，博士后，博士，从事清洁可再生能源高效转换与利用方面的研究，zhgz@zua.edu.cn。
基金资助:
河南省青年人才托举工程计划项目(2022HYTP021);中国华电集团科技项目(CHDKJ22-01-23);教育部教指委高等学校能源动力类教学研究与实践资助项目(NSJZW2021Y-99);河南省住房城乡建设科技计划资助项目(HNJS-2022-K57);河南科技智库调研课题(HNKJZK-2023-47B)

Complementarity analysis of solar energy and gas turbine combined cycle

GENG Zhi¹^,²^,³(), CHEN Keyu¹, LIU Yuanyuan², ZHANG Bin², WANG Jianli², SHI Tianqing², LI Fang², GU Yujiong⁴

1. School of Aero Engine， Zhengzhou University of Aeronautics， Zhengzhou 450046， China
2. Huadian Zhengzhou Mechanical Design Institute Company Limited， Zhengzhou 450046， China
3. Department of Energy and Power Engineering， Tsinghua University， Beijing 100084， China
4. National Thermal Power Engineering & Technology Research Center， North China Electric Power University， Beijing 102206， China

Received:2023-05-17 Revised:2023-06-17 Online:2023-12-25 Published:2023-08-23
Supported by:
Young Elite Scientists Sponsorship Program of Henan Province(2022HYTP021);Science and Technology Program of China Huadian Corporation(CHDKJ22-01-23);Funding for Teaching & Practice of Energy and Power of MOE Higher Education Teaching Guidance Committee(NSJZW2021Y-99);Henan Housing and Urban-Rural Construction Science and Technology Plan(HNJS-2022-K57);Research Project of Henan Provincial Science and Technology Think Tank(HNKJZK-2023-47B)

摘要/Abstract

摘要：

在世界能源储量短缺的背景下，如何提高现有能源可利用率已成为研究热点。太阳能作为一种清洁能源，为发展燃气-蒸汽联合循环（GTCC）系统提供了新的研究方向。将太阳能与燃气发电装置耦合在顶循环（布雷顿循环）的发电系统实现了新能源与传统燃机的多能互补综合利用。结合热力学第一定律理，搭建了整体热力学模型，利用Ebsilon模拟软件对太阳能互补联合循环（ISCC）系统和传统GTCC系统的运行性能参数进行了对比分析，并研究了不同法向直接辐照度（DNI）和大气环境温度对ISCC系统变工况下运行特性及整体节能的影响。研究表明，当天然气输入量为10 kg/s时，GTCC系统循环热效率为39.8%，ISCC系统循环热效率为44.1%；在控制系统总输出电功率不变的条件下，ISCC系统能比GTCC系统节省2.638 kg/s的天然气输入量。太阳能与传统GTCC的有机耦合使系统循环热效率和综合输出电功率大幅提高，并在经济性方面显现出较大优势。

关键词: 燃气-蒸汽联合循环, 太阳能, 太阳能互补联合循环, 性能分析, 互补耦合, 模拟仿真

Abstract:

In the fight against global energy shortage， how to improve the availability of existing energy has become a research hotspot. As a kind of clean energy， solar energy provides a new developing direction for the gas turbine combined cycle （GTCC） system. The power generation system in which solar energy and gas turbines are integrated in the top cycle （Brayton cycle） can realize multi-energy comprehensive utilization.The thermodynamic models for an ISCC system and a GTCC system are established in line with the first law of thermodynamics. Then， the performance parameters of these two systems are comparatively analyzed by Ebsilon simulation software， and the operating characteristics and energy-saving performance of the ISCC system under different direct normal radiation（DNI） and ambient temperature are studied. The research results show the circulating thermal efficiencies of the GTCC system and ISCC system are 39.8% and 44.1% respectively with a 10 kg/s gas inflow rate. On the premise that ISCC system's electric output remains unchanged， the ISCC system can saved 2.638 kg/s natural gas compared with the GTCC system. The coupling of solar energy and traditional GTCC can improve the thermal efficiency， electric output and economy of the whole system.

Key words: gas turbine combined cycle, solar energy, integrated solar combined cycle, performance analysis, complementary coupling, simulation

中图分类号:

TK12：TK123

耿直, 陈柯宇, 刘媛媛, 张斌, 王剑利, 石天庆, 李芳, 顾煜炯. 太阳能与燃气-蒸汽联合循环互补性能分析[J]. 综合智慧能源, 2023, 45(12): 79-86.

GENG Zhi, CHEN Keyu, LIU Yuanyuan, ZHANG Bin, WANG Jianli, SHI Tianqing, LI Fang, GU Yujiong. Complementarity analysis of solar energy and gas turbine combined cycle[J]. Integrated Intelligent Energy, 2023, 45(12): 79-86.

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工质	压力/kPa	温度/℃	流量/(kg·s^-1)
空气	100	20.0	500
天然气	1 000	20.0	10
烟气	100	600.9	510

项目	数值
燃气轮机发电功率/MW	167.059
蒸汽轮机发电功率/MW	100.099
联合循环发电功率/MW	267.158
燃气轮机发电效率/%	24.9
循环热效率/%	39.8
排烟温度/℃	83.374

项目	参数	数值
环境参数	DNI/ (W·m^-2)	1 000
环境参数	大气环境温度/℃	20
系统运行参数	燃气轮机发电功率/MW	215.205
	蒸汽轮机发电功率/MW	138.065
	总发电功率/MW	353.270
	循环热效率/%	44.1
	排烟温度/℃	65.249

大气环境温度/℃	燃机高压空气温度/℃	燃机输出电功率/MW
-5	570.720	214.300
0	571.641	214.495
5	572.526	214.682
10	573.379	214.862
15	574.201	215.036
20	575.000	215.205
25	575.793	215.372
30	576.644	215.551
35	570.528	214.138

太阳能与燃气-蒸汽联合循环互补性能分析

Complementarity analysis of solar energy and gas turbine combined cycle

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