マイクロ波照射による実大模型の気化式加湿器エレメントの殺菌効果: 空調用気化式加湿器のマイクロ波殺菌に関する研究（その3)

摘要

本研究では実際の現場におけるマイクロ波殺菌の実用性を検討す るために加?显器の模型実験装置を用いてエレメントの含水率、マイク ロ波の出力および照射時間の差による殺菌効果への影響、エレメント 表面の温度変化および温度分布について検討を行った。本研究より以 下に示す事項が明らかになった。%To assess possible application of microwave disinfection on evaporative humidifiers, we measured the germicidal effect of fungal spores Fusarium solani and the vegetative cells and bacteria spores Bacillus subtilis using a mock up system. To find effective disinfection conditions for the humidifier element, the germicidal effects were compared to the water content of the element, the irradiation time and the output power. The germicidal effects of the humidifier element were compared with a front and rear surface. The results showed that the strains were inhibited at 1200 W for 20 min except for the B, subtilis spores when the water spray and blower were not operated. In summary, the germicidal effects appear to be stronger towards the upper part of an element than the bottom of the element, regardless of the element being dry or wet. The microwave irradiation shown uneven disinfection on the humidifier element faces for the spores F. solani or vegetative cells B. subtilis. To achieve uniform disinfection on the element, it is desirable to consider variations of these methods to produce a uniform heating pattern in the next study.