太陽能電解冷凝水改善室內空氣品質之研究

Research of Condensed Water Electrolysis by Solar Energy to Improve Indoor Air Quality (IAQ)

林承緯(Cheng-Wei Lin)

指導教授 ： 卓清松

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(2008年)

摘要

為了因應節約能源，現代建築物在建築結構上增加其氣密性，並且減少建築物的通風換氣量，致使室內空氣品質(IAQ )惡化，故本研究利用太陽能電解冷凝水改善室內空氣品質，除了氫氣可供作為環保替代能源之外，氧氣更能夠做有價值的利用。利用氧氣引入室內降低其CO2濃度，在維持室內最佳空氣品質之同時，不僅可以減少外氣引入換氣量以降低室內空調換氣負荷，更可維持室內人員的健康。本研究使用二階混合法製備NaOH/KOH電解液，並以實驗研究法探討不同日照強度之太陽能在不同濃度下進行電解，藉由與不同比例之外氣引入量供入室內換氣，以暸解不同室內換氣率與室內不同CO2濃度之下降關係。研究結果發現：在本研究使用之電解液樣本中，以KOH 30wt.%電解效果最佳，而若不計太陽能電解水之設備建置成本，在維持室內最佳CO2濃度時，節能均可高達至少95.2%以上；而因耗能造成的碳排放方面，相對最高可減少98.5%之碳排放量。
本研究主要的貢獻除了在於減少換氣量達到節能的同時亦能有效降低室內CO2濃度之外，更在因全球暖化造成氣候嚴重變遷的同時，做到雙重減碳的效果，以達到環保、節能及健康三者兼顧的目的。

關鍵字

太陽能 ； 電解水 ； 氧氣 ； 室內空氣品質 ； 節能

並列摘要

In order to save energy, modern buildings have increased the airtightness of their structures, and decreased their ventilation volume, thus leading to the worsening of indoor air quality (IAQ). In view of this, the study used solar-energy electrolytic condensed water to improve the IAQ. Besides hydrogen that can serve as a replaceable energy for environmental protection, oxygen can even offer valuable usages. The inflow of oxygen to the indoor space can reduce the concentration of CO2. While the best IAQ is maintained, not only the indoor ventilation load of air conditioners can be reduced with the decreased inflow of ventilation volume from the outdoors, the health of people indoors can also be maintained. The study used two-step synthesis to prepare NaOH/KOH electrolytic fluid, and employed experimental research method to investigate the implementation of water electrolysis under the solar energy of different illumination strengths and under different concentrations. Through the inflow of the external air of different proportions to the indoor space for ventilation, the study was able to understand the relationship between the different indoor ventilation rates and the different CO2 concentrations indoors. The research results show that in the electrolytic fluid sample of the study, KOH 30 wt. % has the best electrolysis effect. If the cost for the establishment of solar-energy water electrolysis equipment is not counted, when the best CO2 concentration indoors is maintained, the energy conservation can be as high as 95.2% minimum. As to the carbon emission caused by energy consumption, the carbon emission volume can be relatively decreased by 98.5% maximum.
The study is contributive not only in the decrease of ventilation volume to conserve energy and reduce CO2 concentration indoors effectively, but also in achieving the effect of double decrease of carbon emission during the serious climatic changes caused by global warming. Finally, the study hopes to pursue the three goals of environmental protection, energy conservation, and health simultaneously.

並列關鍵字

solar energy ； water electrolysis ； oxygen ； IAQ ； energy conservation

參考文獻

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