论文总字数：27467字

摘 要

本文首先简单介绍在世界范围内研究成果较为成熟，且成功商用的太阳能-燃气轮机联合运行系统（ISCC）。相较于传统的热发电形式，ISCC系统具有明显的优势和更好的应用前景。在DSG（Direct Steam Generation）和HTF（Heat Transfer Fluid）两种热传导方式中，本文选择已经商用的HTF方式将太阳能场的热量传输到朗肯循环中。随后对燃料电池联合运行系统进行简要分析，介绍了燃料电池联合循环系统的结构并进行了简单的热力性计算。燃料电池联合循环系统发电效率较高，对环境污染小，可以与ISCC系统进行整合。

最后，结合上述两者的运行情况，提出太阳能-燃料电池联合运行系统，分析其热力学性能，并采用大型通用性物流模拟软件Aspen plus对整个过程进行模拟。把该系统和ISCC机组进行比较，其热效率和电效率均有明显提高。

关键词：太阳能；燃料电池；新能源；联合发电

SOLAR-FUEL CELL HYBRID ELECTRICITY OPERATION SYSTEM

03012412 shiyan

Supervised by yangfan

Abstract: Economic development leads to the rapid growth of energy demand. At the same time, the excessive and inefficient use of energy which causes energy shortage, environmental pollution and other issues, has gradually become a key matter affecting the national economy and the people's livelihood. All countries in the world are committed to the effective use of energy and development of new energy which has made great progress. This paper presents a new type of electricity system which combined solar energy, gas turbine and fuel cell. The system uses steam turbine to reduce the temperature of exhaust gas and to improve the efficiency of the cycle.

A brief introduction is given first to introduce solar energy and gas turbine combined operation system (ISCC) which is relatively mature around the world. Compared with the traditional thermal power generation, ISCC system has obvious advantages and better application prospects. The Rankine cycle choose HTF way between HTF and DSG to transform heat duty into the solar cycle. Then the paper will briefly analyze the operation system of the fuel cell and introduce the composition and influencing factors of the system. It has a higher power generation efficiency, and the environmental pollution is trivial as well. It can be combined with the ISCC system.

Finally, combining the operation condition of the above two, the paper proposed a Solar-fuel cell hybrid electricity operation system, and analyze its thermodynamic performance. Then Aspen Plus software will be used to simulate the whole process. Compared with the ISCC unit, the thermal efficiency and the electric efficiency of the system are obviously improved.

KEY WORDS: solar energy，fuel cell，new energy，integration power generation

目录

1、绪论 1

1.1选题背景及意义 1

1.2 国内外研究动态 2

1.3 课题研究内容 3

2、太阳能燃气轮机联合循环 5

2.1 太阳能热发电技术 5

2.1.1 太阳能热发电系统的工作原理 5

2.1.2 太阳能热发电系统组成 5

2.2 ISCC系统介绍 6

2.3 太阳能模型选取 8

2.4 太阳能-燃气轮机循环优点及利用前景 10

2.5 小结 11

3、燃料电池联合循环 12

3.1 燃料电池工作原理简介 12

3.2 燃料电池联合循环系统 13

3.2.1 燃料电池联合循环系统组成 13

3.2.2 联合循环系统热力学计算 15

3.3 燃料电池联合循环优点及利用前景 16

3.4 小结 16

4、集成方案设计及性能分析 17

4.1 集成方案设计 17

4.2 热力学性能评价准则 18

4.3 小结 19

5、混合发电系统建模 20

5.1 建模平台 20

5.2 系统建模方法 20

5.2.1 系统模型简介 20

5.2.2 相关参数设定 21

5.3 系统模型 21

5.4 模拟结果 22

5.5 辐射强度对联合运行的影响 24

5.5.1 A地区 24

5.5.2 B地区 25

5.5.3 C地区 26

5.5.4 联合循环机组运行情况比较 27

5.6 小结 28

6、结论与展望 29

6.1 结论 29

6.2 展望 29

致 谢 30

参考文献： 31

太阳能燃料电池联合运行系统

1、绪论

1.1选题背景及意义

近年来，我国的发展消耗了大量的化石能源。据统计，我国每年一次能源的消耗量超过90%，而大力发展的新能源，例如太阳能、风能、生物质能等利用率依旧很低。我们亟需找到替代传统煤炭发电的方法。

世界银行的报告指出，日益严峻的环境问题已经严重威胁到了人们的身体健康和智力发育，每年有接近20万人死于由环境污染所引发的各种疾病。世界银行的统计称，中国每年要损失40亿美元在水污染问题上，而大气污染和水污染所造成的损失加在一起“大体占国内生产总值的3%~8%”，达540亿美元^[1]。

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