太陽熱能有機朗肯循環-PEM電解製氫系統性能解析

Performance Analysis of Solar Organic Rankine Cycle-PEM Electrolyzer system

陳裕欽(Yu-Ching Chen)

指導教授 ： 楊安石

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2010年)

摘要

因應全球節能減排趨勢，各國致力發展潔淨次世代能源。氫能具有來源豐富、應用層面廣和低污染等優點，故可成為次世代綠色能源載體。目前產氫來源大多採用化石燃料為原料，此製程技術在未來而言將不適用，因而需發展潔淨製氫技術。再生能源中，太陽能具有取之不盡、用之不竭特性及使用過程中不排放溫室氣體，因此受到廣泛地使用。有機朗肯循環具有回收低階熱源再利用特性，故可應用於多種低溫熱源系統中；就電解製氫技術而言，以PEM電解技術具有安全可靠、化學穩定性佳和效率高等優點而受到各界注目。
因此本文規劃將平板型太陽能集熱器連結有機朗肯循環生產出電能，將其輸入至PEM電解器生產氫氣，構成一潔淨製氫混元系統。文內分別研究(1)基本型和再生型有機朗肯循環之能質分析，以得知再生型有機朗肯循環具有較高可用能效率、(2)使用台灣地區之統計氣候資料，於相同電能輸出之再生型有機朗肯循環中，各區域所需設置之集熱器面積、(3)於不同地區設置相同集熱板面積，依各地氣候條件之不同，其輸出電能不同(意味著製氫量也隨之不同)，綜合上述研究結果期待能以作為台灣地區潔淨製氫混元系統之設計依據。

關鍵字

太陽能集熱器 ； ORC有機循環 ； PEM電解器 ； 可用能

並列摘要

Responded to the global trend of energy saving, every country dedicated to developing the next generation of clean energy. Hydrogen energy can become the next generation of green energy carrier due to its advantages of rich source, wide application and low pollution. Most of the current hydrogen energy is produced from fossil fuels used as raw materials. However, this process technology will not be applicable in the future. Therefore, developing clean technology of producing hydrogen energy is necessary. Among all the renewable energy, solar energy has inexhaustible characteristic, does not emit greenhouse gases during the use, and thus being widely used. Organic Rankine Cycle with the characteristic of reusing recovered low-level heat source can be applied to various low temperature heat source systems. To electrolytic hydrogen production technology is concerned, the PEM electrolytic technology with the advantages of safety and reliability, good chemical stability, and high efficiency has drawn attentions from all the countries.
Therefore, the thesis planned to produce electrical energy by connecting the plate solar collectors to the ORC, and then input it to the PEM electrolyzer to produce hydrogen, which forms a clean hybrid system of producing hydrogen. The texts are split into three parts: 1) the energy quality analysis of basic and regenerative ORC which is used to obtain that the regenerative ORC has the highest available energy efficiency; 2) the statistical weather data in Taiwan which is used to obtain that for the regenerative ORC that produces same electrical energy the required heat collector’s area in each region; 3) the same heat collector’s area set in different regions will have different output energy (which means the quantity of hydrogen production is different as well) according to climatic conditions of each region. In summary to the above research results, this work being used as a design basis for clean hybrid system of producing hydrogen in Taiwan can be expected.

並列關鍵字

Solar collector ； Organic Rankine Cyle ； PEM Electrolyzer ； Exergy

參考文獻

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