Characteristics and enhancement of a disk type humidifier with hydrophilic rough surface

Seongjin Yun, Youngjin Seo, Byungryul Min

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The performance of portable disk humidifiers relies on water vaporized into dry air. Among various kinds of humidifiers, a disk humidifier comprises of disks as a water vaporizing means. An experimental study was conducted to improve humidifier performance using three kinds of polymer disks: polypropylene (PP), acrylonitrile butadiene styrene (ABS), and compounded PP. The hydrophilicities of PP, ABS, and compounded PP were 86°, 90°, and 55°, respectively. Wetested the humidification rates of humidifiers with disks roughened by 24, 30, and 40 μm (9.45 × 10-4, 1.18 × 10-3, and 1.57 × 10-3 in.) of fine sand using a sandblasting process for three kinds of disks. The compounded PP humidifier vaporized about 1.3-1.4 times more moisture than the other types. The 24 μm (9.45 × 10-4 in.) sand treated disk humidifier showed the best results, humidifying 1.57-1.7 times more than the original disk humidifier. These results suggest that humidifier performance could be enhanced with the use of hydrophilic rough disks without requiring any additional electrical energy.

Original languageEnglish
Title of host publicationASHRAE Transactions - ASHRAE Winter Conference
Number of pages4
EditionPART 1
ISBN (Print)9781936504701
Publication statusPublished - 2014
Event2014 ASHRAE Winter Conference - New York, NY, United States
Duration: 2014 Jan 182014 Jan 22

Publication series

NameASHRAE Transactions
NumberPART 1
ISSN (Print)0001-2505


Other2014 ASHRAE Winter Conference
Country/TerritoryUnited States
CityNew York, NY

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering


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