Indoor PM2.5 removal efficiency of two different non-thermal plasma systems
Hernández Díaz, D. Indoor PM2.5 removal efficiency of two different non_thermal plasma systems.pdf (2,597Mb) (Restricted access) Request copy
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The use of non-thermal plasma (NTP) generators in air processing systems and their duct networks to improve indoor air quality (IAQ) has grown considerably in recent years. This paper reviews the advantages and disadvantages of NTP generators for IAQ improvement in biological, chemical and particulate pollutant terms. Also, it assesses and compares the ability of a multipin corona discharge (MPCD) and a dielectric barrier discharge (DBD) generator to reduce the concentration of fine particulate matter (PM2.5) in recycled, unfiltered air in a refrigeration chamber. The MPCD generator was found to have a higher PM2.5 removal efficiency; also, it was faster in removing pollutants, used less energy, and produced much less ozone. The fact that the MPCD generator performed better was seemingly the result of its increased ion production mainly. NTP generators, however, cannot match air filtration media purifiers in this respect as the latter are much more effective in removing particles. Besides, NTP-based air purifying technology continues to be subject to a major drawback, namely: the formation of ozone as a by-product. In any case, the ozone generation was uncorrelated to ion emission when using different technologies
CitationHernandez, D. [et al.]. Indoor PM2.5 removal efficiency of two different non-thermal plasma systems. "Journal of environmental management", 15 Gener 2021, vol. 278, núm. Part 1, p. 111515:1-111515:8.
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