New Air Purification Concept for Significant Improvement in Control of Indoor Air Particle Concentration

Hannu Salmela, Kimmo Heinonen, Tapio Kalliohaka, Matti Lehtimäki, Matti Niemeläinen, Seppo Enbom

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    The ability to control the particle concentration of the indoor air is relatively limited with the existing techniques used in air conditioning systems of buildings. The present methods to reduce the particle concentration of the indoor air are mainly related to the increase of the ventilation rate and/or the use of supply air filters with high collecting efficiency. Both alternatives seem to be unrealistic if an attempt is made to reduce the particle concentration significantly, for example 90%, in an office or school environments or in "semi-clean" industry premises requiring cost-efficient indoor air purification. The particle concentration of the indoor air can be significantly reduced with a novel air purification concept innovated by VTT Technical Research Centre of Finland. The concept can be integrated into existing air conditioning systems without increasing the ventilation rate or without major increase in energy consumption. In several cases the expected reduction of the particle concentration is at least 90%. The precondition is to use electret filters in combination with a special electric charging system for the filtration of the supply air, and air diffusers provided with effective filtration for the filtration of the indoor air.
    Original languageEnglish
    Title of host publication45th R3Nordic Symposium
    Subtitle of host publicationCleanroom Technology, Contamination Control and Cleaning
    EditorsGun Wirtanen, Satu Salo
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages41-48
    ISBN (Electronic)978-951-38-8253-2
    ISBN (Print)978-951-38-8142-9
    Publication statusPublished - 2014
    MoE publication typeB3 Non-refereed article in conference proceedings
    Event45th R3Nordic Symposium: Cleanroom Technology, Contamination Control and Cleaning - Naantali, Finland
    Duration: 19 May 201420 May 2014

    Publication series

    SeriesVTT Technology
    Volume168
    ISSN2242-1211

    Conference

    Conference45th R3Nordic Symposium
    CountryFinland
    CityNaantali
    Period19/05/1420/05/14

    Fingerprint Dive into the research topics of 'New Air Purification Concept for Significant Improvement in Control of Indoor Air Particle Concentration'. Together they form a unique fingerprint.

  • Research Output

    45th R3Nordic Symposium: Cleanroom Technology, Contamination Control and Cleaning

    Wirtanen, G. (ed.) & Salo, S. (ed.), 2014, Espoo: VTT Technical Research Centre of Finland. 185 p. (VTT Technology; No. 168).

    Research output: Book/ReportReport

    Open Access
  • Cite this

    Salmela, H., Heinonen, K., Kalliohaka, T., Lehtimäki, M., Niemeläinen, M., & Enbom, S. (2014). New Air Purification Concept for Significant Improvement in Control of Indoor Air Particle Concentration. In G. Wirtanen, & S. Salo (Eds.), 45th R3Nordic Symposium: Cleanroom Technology, Contamination Control and Cleaning (pp. 41-48). VTT Technical Research Centre of Finland. VTT Technology, Vol.. 168 http://www.vtt.fi/inf/pdf/technology/2014/T168.pdf