Property of Odor Transfer of Total Heat Exchanger and Wakkanai Siliceous Rotor

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  • 全熱交換素子および稚内層珪質頁岩ローターの臭気移行特性
  • ゼン ネツコウカン ソシ オヨビ ワッカナイソウケイシツ ケツガン ローター ノ シュウキ イコウ トクセイ

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<p>The authors have been developing a desiccant ventilation unit, which consist of a static total heat exchanger and Wakaknai siliceous shale (WSS) rotor. In this study, toluene, ammonia and formaldehyde were used as a model odor gas, and the odor transfer from the RA to SA were evaluated by using the gas sensor and gas detected tubes. Transfer of toluene gas were not observed in the total heat exchanger and WSS rotor, because of the limit of detector concentration. The ammonia transfer rate of THEX showed a high transfer rate of 50% at the higher humidity conditions. It was indicated that the ammonia transfer was depended on the water content in THEX. The WSS rotor gave the transfer rate of 33% with ammonia and 46% with formaldehyde. During the ammonia supply into the RA, lot of ammonia gas was adsorbed and maintained in the rotor.</p>

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