為了解決環(huán)境破壞與自然資源短缺的問題,中國如今已正在大力促進(jìn)了可再生能源的發(fā)展。近年來,太陽能熱水器已在國內(nèi)得了廣泛應(yīng)用,與太陽能光電池技術(shù)正在引起了越來越大的關(guān)注。太陽能光伏光熱一體化系統(tǒng)整合了太陽能電池和集熱器技術(shù),為了能夠同時產(chǎn)生電能和熱量。與并排處境分列的太陽能電池和集熱器相比,PVT系統(tǒng)有不少的優(yōu)勢,如更多有效利用單位面積的產(chǎn)生能量,較低的生產(chǎn)與安裝成本,而且看來也有了整齊劃一的外觀等�？紤]到最近城市化引起的空間限制,PVT技術(shù)在中國看來是一個很有潛力的技術(shù)。 本課題的目的就是研究PVT技術(shù)用于在中國北方地區(qū)的可能性。研究中利用一個無蓋版管板式PVT集熱器系統(tǒng),于2009年11月-2010年8月進(jìn)行了戶外測試,在北京氣候條件下探索了系統(tǒng)的熱與電性能。為了避免在最冷溫度的情況下結(jié)冰現(xiàn)象,用了丙二醇/水混合液當(dāng)做冷卻液。研究根據(jù)獲得的實驗結(jié)果,采用折扣現(xiàn)金流的方法對該技術(shù)進(jìn)行了經(jīng)濟(jì)分析和影響因素的敏感度分析,研究了政府財政補(bǔ)貼,能源價格,光伏板成本,光電轉(zhuǎn)換率等某些因素對PVT系統(tǒng)的經(jīng)濟(jì)性的影響。 實驗結(jié)果表明,氣候條件與冷卻液的初始溫度對系統(tǒng)性能有較大影響。系統(tǒng)的日平均熱和電效...

【文章頁數(shù)】：87 頁

【學(xué)位級別】：碩士

【文章目錄】：
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 個人簡歷、在學(xué)期間發(fā)表的學(xué)術(shù)論文與研究成果 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



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