發(fā)布時間：2018-02-23 21:24

  本文關鍵詞： 太陽能熱化學 儲能 化學回熱 甲醇分解　出處：《工程熱物理學報》2017年09期 　論文類型：期刊論文

【摘要】：提出了一種太陽能熱化學與化學回熱過程聯(lián)合的冷熱電聯(lián)產系統(tǒng)。利用太陽能驅動甲醇分解反應,產生的合成氣在內燃機中燃燒作功,內燃機排煙余熱與導熱油換熱,并驅動甲醇分解反應以回收余熱。對系統(tǒng)進行了熱力學性能分析,探究了全年典型日下系統(tǒng)熱力性能與儲能特性規(guī)律.研究結果表明:設計工況下系統(tǒng)一次能源利用率為78.4%,太陽能凈發(fā)電效率為21.1%。在300~1000 W/m~2的直射輻照強度范圍內,系統(tǒng)可以實現(xiàn)穩(wěn)定運行,太陽能凈發(fā)電效率穩(wěn)定在19.3%~21.5%的變化范圍內。
[Abstract]:In this paper, a combination of solar thermal chemistry and chemical regenerative process is proposed. The system uses solar energy to drive the decomposition of methanol, the generated syngas is burned in the internal combustion engine, and the exhaust heat of internal combustion engine and the heat transfer of heat conduction oil are obtained. The methanol decomposition reaction was driven to recover the waste heat. The thermodynamic performance of the system was analyzed. The thermodynamic performance and energy storage characteristics of typical daily systems are investigated. The results show that the primary energy utilization ratio of the system is 78.4 and the net solar energy generation efficiency is 21.1.In the direct radiation intensity range of 300 ~ 1 000 W / m ~ 2, the energy efficiency of the system is 78.4, and the net solar energy generation efficiency is 21.1g / m ~ (2) in the range of 300 ~ 1000 W / m ~ (2). The system can operate stably and the efficiency of net solar power generation is within the range of 19.3% and 21.5%.
【作者單位】： 中國科學院工程熱物理研究所;中國科學院大學;
【基金】：國家自然科學基金重點項目(No.51236008)
【分類號】：TM61;TU83
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本文編號：1527678