Air Cleaning Performance of Desiccant Wheel Regenerated by Polluted Air in a Clean Air Heat Pump

Lei Fang, Ying Sheng, Jinzhe Nie

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Clean air heat pump (CAHP) is a new technology that combines air cleaning with hygrothermal control of ventilation air. In CAHP, a regenerative desiccant wheel is used for moisture control and air cleaning. This study investigated experimentally the air cleaning performance of a desiccant wheel when it was regenerated by polluted air. The experiment was conducted in a laboratory by testing air cleaning efficiency of a CAHP using two pure chemicals - toluene and acetone as air pollutants. The results showed that the single-pass air cleaning efficiency of the CAHP remained above 40% when it was regenerated by polluted air. Although the efficiency decreased around 10% when the desiccant wheel was regenerated by polluted air compared to the value obtained when it was regenerated by cleaning outdoor air, the results suggested that using rejected indoor air for regenerating the desiccant wheel is worthwhile considering its significant effect on energy saving.
Original languageEnglish
Title of host publicationProceedings of Indoor Air 2018
Number of pages8
PublisherInternational Society of Indoor Air Quality and Climate
Publication date2019
Publication statusPublished - 2019
Event15th Conference of the International Society of Indoor Air Quality and Climate - Philadelphia, United States
Duration: 22 Jul 201827 Jul 2018
Conference number: 15

Conference

Conference15th Conference of the International Society of Indoor Air Quality and Climate
Number15
CountryUnited States
CityPhiladelphia
Period22/07/201827/07/2018

Keywords

  • Ventilation
  • Indoor air quality
  • VOCs
  • Energy saving

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