改善停置汽車車廂空氣品質之研究

Study on Improving Air Quality inside Parked Vehicles

當汽車直接曝曬在太陽下，積熱導致車廂溫度迅速的上升，車廂高溫致使揮發性有機化合物濃度增加，對於進入車內的人員將會造成極大危害。為改善密閉車廂內的空氣品質，達到潔淨空氣與消滅細菌的目的，本論文提出一種空氣淨化裝置，主要均包含空氣淨化單元、紫外線殺菌單元及空氣導入單元。根據實驗數據顯示，在車窗完全關閉狀態下，當採用空氣淨化裝置後，車內空氣品質可獲得良好的提升，在最佳的情況下，二氧化碳與揮發性有機化合物可分別下降15% 與45% 以上。此外，紫外線殺菌單元使用時間達120 分鐘時，對金黃色葡萄球菌與大腸桿菌的抑菌率分別可達到99.1% 與94.1%。

When a car is parked under direct sunlight, accumulated heat causes the temperature of the car and the cabin interior to increase rapidly. This paper presents aseries of vehicle air purification devices which combine an air purification unit, an ultraviolet bactericide unit,and an air circulation unit. Their main function is to disinfect and improve the quality of air inside the vehicle. In conclusion, when all of the cabin windows are closed, air quality can be well promoted after the air inside the vehicle is purified. Under optimal situations, carbon dioxide and volatile organic compounds can be lowered over 15% and 45%, respectively. The ultraviolet bactericide unit can last for 120 minutes and inhibits staphylococcus aureus and escherichia coli up to 99.1% and 94.1%, respectively.