本文選題：太陽能熱化學　切入點：品位耦合　出處：《中國科學院工程熱物理研究所》2017年博士論文　論文類型：學位論文

【摘要】：新能源的有效利用是當前世界能源研究領域的重要方向。鑒于當前新能源技術剛剛起步的發(fā)展特點,新能源和傳統(tǒng)化石能源互補利用是當前能源科學研究的熱點。本學位論文依托國家自然科學基金重點項目,針對中低溫太陽能熱化學互補發(fā)電系統(tǒng)的關鍵技術和核心科學問題,開展了中低溫太陽能與吸熱化學反應互補發(fā)電的系統(tǒng)集成機理與不同太陽輻照強度時的多反應協(xié)同調(diào)控方法研究�；诨瘜W能和物理能的綜合梯級利用原理,從能的品位概念出發(fā),研究了不同太陽輻照強度時太陽能熱化學過程的品位耦合規(guī)律,分析了太陽能驅(qū)動的甲醇重整反應、甲醇裂解反應和甲烷重整反應三個吸熱反應在不同太陽輻照強度時的熱力學特點,研究了以上三個太陽能驅(qū)動的吸熱反應在不同太陽輻照強度時的品位耦合特性規(guī)律,揭示了太陽能驅(qū)動吸熱反應過程的不可逆特性。針對中低溫太陽能驅(qū)動甲醇裂解反應互補發(fā)電系統(tǒng)在整個太陽輻照強度區(qū)間時熱力性能差,年均太陽能凈發(fā)電效率低的問題,從太陽能集熱品位與吸熱反應品位匹配的思路出發(fā),探索了雙反應協(xié)同調(diào)控方法:在太陽輻照強度較低時,太陽能與甲醇重整反應互補,在太陽輻照強度較高時,太陽能與甲醇裂解反應互補,此方法實現(xiàn)了互補發(fā)電系統(tǒng)在整個太陽輻照強度區(qū)間熱力性能的提升。基于此方法,分析了燃料品位與太陽能集熱品位的耦合特性,提出了多反應協(xié)同調(diào)控的互補發(fā)電系統(tǒng),研究了四季典型日太陽能燃料產(chǎn)率和太陽能凈發(fā)電效率的變化規(guī)律,給出了基于雙反應協(xié)同調(diào)控方法的系統(tǒng)全年熱力性能。參與研制了國際首套百千瓦中低溫太陽能熱化學互補發(fā)電實驗平臺,開展了部分實驗研究。以此實驗臺為基礎,對百千瓦中低溫太陽能熱化學互補發(fā)電電站進行了技術經(jīng)濟性分析。
[Abstract]:The effective utilization of new energy is an important direction in the field of energy research in the world. The complementary utilization of new energy and traditional fossil energy is a hot spot in the current energy science research. Based on the key projects of the National Natural Science Foundation, this dissertation aims at the key technologies and core scientific issues of solar thermochemical complementary power generation system at medium and low temperatures. The system integration mechanism of solar energy and endothermic chemical reaction complementary power generation at moderate and low temperatures and the method of multi-reaction synergistic control under different solar radiation intensities are studied. Based on the principle of comprehensive cascade utilization of chemical and physical energy, Based on the concept of grade of energy, the grade coupling law of solar thermochemical process under different solar irradiation intensity was studied, and the methanol reforming reaction driven by solar energy was analyzed. The thermodynamic characteristics of three endothermic reactions of methanol pyrolysis and methane reforming at different solar irradiation intensities were studied. The coupling characteristics of the three solar energy driven endothermic reactions at different solar irradiation intensities were studied. The irreversible characteristics of the solar energy driven endothermic reaction process are revealed. The thermal performance of the solar energy driven methanol pyrolysis reaction complementary power generation system is poor in the whole solar irradiation intensity range, and the annual net solar power generation efficiency is low. Based on the idea of matching the grade of solar energy collecting heat with the grade of endothermic reaction, the method of double reaction synergistic regulation is explored: when the solar radiation intensity is low, the solar energy and methanol reforming reaction complement each other, and when the solar radiation intensity is high, the solar energy and methanol reforming reaction complement each other. The thermal performance of the complementary generation system in the whole solar radiation intensity range is improved by this method. Based on this method, the coupling characteristics of fuel grade and solar energy collector grade are analyzed. A complementary power generation system with multi-reaction coordinated regulation is proposed. The variation of solar fuel production rate and solar net power generation efficiency in the four seasons are studied. The thermal performance of the system based on the dual reaction cooperative control method is presented. The first international experimental platform for 100 kilowatt low temperature solar thermochemical complementary power generation is developed, and some experimental studies are carried out. The technical and economic analysis of 100 kilowatt solar thermochemical complementary power station is carried out.
【學位授予單位】：中國科學院工程熱物理研究所
【學位級別】：博士
【學位授予年份】：2017
【分類號】：TM615

【參考文獻】

相關期刊論文 前5條

1 許達;劉啟斌;隋軍;金紅光;;太陽能與甲醇熱化學互補的分布式能源系統(tǒng)研究[J];工程熱物理學報;2013年09期

2 潘瑩;洪慧;金紅光;;太陽能熱化學研究進展[J];科技導報;2010年07期

3 ;Fundamental study of novel mid-and low-temperature solar thermochemical energy conversion[J];Science in China(Series E:Technological Sciences);2009年05期

4 金紅光;張國強;高林;林汝謀;;總能系統(tǒng)理論研究進展與展望[J];機械工程學報;2009年03期

5 ;A new principle of synthetic cascade utilization of chemical energy and physical energy[J];Science in China(Series E:Technological Sciences);2005年02期

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本文編號：1559930