中国北方地区光伏/光热系统的技术与经济评价
发布时间：2023-10-15 17:27
为了解决环境破坏与自然资源短缺的问题,中国如今已正在大力促进了可再生能源的发展。近年来,太阳能热水器已在国内得了广泛应用,与太阳能光电池技术正在引起了越来越大的关注。太阳能光伏光热一体化系统整合了太阳能电池和集热器技术,为了能够同时产生电能和热量。与并排处境分列的太阳能电池和集热器相比,PVT系统有不少的优势,如更多有效利用单位面积的产生能量,较低的生产与安装成本,而且看来也有了整齐划一的外观等。考虑到最近城市化引起的空间限制,PVT技术在中国看来是一个很有潜力的技术。 本课题的目的就是研究PVT技术用于在中国北方地区的可能性。研究中利用一个无盖版管板式PVT集热器系统,于2009年11月-2010年8月进行了户外测试,在北京气候条件下探索了系统的热与电性能。为了避免在最冷温度的情况下结冰现象,用了丙二醇/水混合液当做冷却液。研究根据获得的实验结果,采用折扣现金流的方法对该技术进行了经济分析和影响因素的敏感度分析,研究了政府财政补贴,能源价格,光伏板成本,光电转换率等某些因素对PVT系统的经济性的影响。 实验结果表明,气候条件与冷却液的初始温度对系统性能有较大影响。系统的日平均热和电效...
【文章页数】：87 页
【学位级别】：硕士
【文章目录】：
Abstract 摘要 1. Introduction
1.1. Context
1.2. PV/T concepts and technology
1.2.1. What is a PV/T system and why has it been designed?
1.2.2. PV/T design concepts
1.2.3. Applications
1.3. State-of-the-art of PV/T technology
1.3.1. History and statistics
1.3.2. Purpose of the research
1.3.3. Theoretical and numerical research
1.3.4. Computational simulations
1.3.5. Experimental work
1.3.6. Economic studies
1.3.7. Main conclusions
1.3.8. Commercial development
1.3.9. Further R&D aspects for PV/T systems
1.4. Purpose of the present thesis 2. Technical performance evaluation
2.1. Description of the experimental rig and measurement system
2.1.1. Description of the experimental rig
2.1.2. Description of the data acquisition system
2.1.3. Restoration work
2.1.4. Modifications for freeze prevention
2.2. Experimental conditions
2.3. Issues encountered
2.4. Experimental results and discussion
2.4.1. Climatic conditions of Beijing
2.4.2. Thermal performances
2.4.3. Electrical performances
2.4.4. Energy production for domestic hot water production
2.5. Main conclusions 3. Economic evaluation
3.1. Method and formulas
3.1.1. Present worth
3.1.2. Equal-payment-series present worth factor
3.1.3. Equivalence under inflation
3.2. Economic evaluation of the system
3.2.1. Reference case assumptions
3.2.2. Estimation of the present costs of the system
3.2.3. Estimation of the annual savings
3.2.4. Calculation of the cost payback time and discussion
3.2.5. Discussion and comparison with previous economic studies
3.5. Main conclusions 4. Sensitivity analysis
4.1. Influence of the present costs
4.1.1. Influence of the replacement costs
4.1.2. Influence of government financial incentives
4.1.3. Sensitivity to the PV module costs
4.1.4. Sensitivity to the frequency of components replacements
4.2. Influence of the annual savings
4.2.1. Sensitivity to the energy prices
4.2.2. Sensitivity to the PV cells efficiency
4.3. Combination of parameters
4.4. Main conclusions and suggestions 5. Conclusions and recommendations
5.1. Conclusions
5.2. Recommendations for a future work References Acknowledgments 个人简历、在学期间发表的学术论文与研究成果 Appendix A: Calculation of the pumping power required to circulate the fluid through the system: Appendix B: Uncertainties in the experimental measurements Appendix C: Calculation of the batteries capacity
本文编号：3854340
【文章页数】：87 页
【学位级别】：硕士
【文章目录】：
Abstract 摘要 1. Introduction
1.1. Context
1.2. PV/T concepts and technology
1.2.1. What is a PV/T system and why has it been designed?
1.2.2. PV/T design concepts
1.2.3. Applications
1.3. State-of-the-art of PV/T technology
1.3.1. History and statistics
1.3.2. Purpose of the research
1.3.3. Theoretical and numerical research
1.3.4. Computational simulations
1.3.5. Experimental work
1.3.6. Economic studies
1.3.7. Main conclusions
1.3.8. Commercial development
1.3.9. Further R&D aspects for PV/T systems
1.4. Purpose of the present thesis 2. Technical performance evaluation
2.1. Description of the experimental rig and measurement system
2.1.1. Description of the experimental rig
2.1.2. Description of the data acquisition system
2.1.3. Restoration work
2.1.4. Modifications for freeze prevention
2.2. Experimental conditions
2.3. Issues encountered
2.4. Experimental results and discussion
2.4.1. Climatic conditions of Beijing
2.4.2. Thermal performances
2.4.3. Electrical performances
2.4.4. Energy production for domestic hot water production
2.5. Main conclusions 3. Economic evaluation
3.1. Method and formulas
3.1.1. Present worth
3.1.2. Equal-payment-series present worth factor
3.1.3. Equivalence under inflation
3.2. Economic evaluation of the system
3.2.1. Reference case assumptions
3.2.2. Estimation of the present costs of the system
3.2.3. Estimation of the annual savings
3.2.4. Calculation of the cost payback time and discussion
3.2.5. Discussion and comparison with previous economic studies
3.5. Main conclusions 4. Sensitivity analysis
4.1. Influence of the present costs
4.1.1. Influence of the replacement costs
4.1.2. Influence of government financial incentives
4.1.3. Sensitivity to the PV module costs
4.1.4. Sensitivity to the frequency of components replacements
4.2. Influence of the annual savings
4.2.1. Sensitivity to the energy prices
4.2.2. Sensitivity to the PV cells efficiency
4.3. Combination of parameters
4.4. Main conclusions and suggestions 5. Conclusions and recommendations
5.1. Conclusions
5.2. Recommendations for a future work References Acknowledgments 个人简历、在学期间发表的学术论文与研究成果 Appendix A: Calculation of the pumping power required to circulate the fluid through the system: Appendix B: Uncertainties in the experimental measurements Appendix C: Calculation of the batteries capacity
本文编号：3854340
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