Improvement of air quality in vehicle cabins by nanoparticle filtration

• Autorzy: Burtscher H. , Mayer A. , Loretz S. , Keller A. , Kasper M. , Czerwinski J.
• Języki publikacji: EN

Abstrakty

EN

A filter system is presented which allows the reduction of the concentration of ultrafine particles in vehicle cabins to very low levels. The original ventilation system is switched to the recirculation mode and all cabin intake air is supplied via a retrofitted filter system. Tests with a variety of different vehicles (from passenger cars to coaches) show the efficiency of the system. Filters incorporated in present ventilation systems remove large particles, for example pollen, but usually are inefficient for removing very small particles. This is demonstrated by Fig. l, where the particle number concentration outside and inside a car is plotted during a journey near Zurich. It is obvious that the concentrations inside and outside are more or less identical. All windows were closed during this measurement. Tests with a number ofdifferent all cars showed similar results. The filters included in today 's ventilation systems usually cannot remove nanoparticles, and so vehicle cabin indoor and outdoor nanoparticle concentrations are more or less identical. The nanocleaner, consisting of a very effident filter and a high performance blower, allows reduction of the particle concentration in the cabin from several hundreds of thousands or millions per cc. to a few thousand per cc., equivalent to remote woodland, the total exposed dose being reduced by some two orders of magnitude.

Słowa kluczowe

EN

vehicle; ecology; filtration system; nanoparticles

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2010
• Tom: Vol. 17, No. 4
• Strony: 79--88
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Burtscher H.

autor

Mayer A.

autor

Loretz S.

autor

Keller A.

autor

Kasper M.

autor

Czerwinski J.

• University of Applied Sciences, Northwestern Switzerland CH5210 Windisch, Switzerland tel: [phone], fax: [phone],

Bibliografia

• [1] Fruin, S. A., Winer, A. M., Rodes, C. E., Black carbon concentrations in California vehicles and estimation of invehicle diesel exhaust particulate matter exposures, Atmospheric Environment 38, 4123–4133, 2004.
• [2] Oberdörster, G., Sharp, Z., Atudorei, V., Elder, A., Gelein, R., Kreyling, W., Cox, C., Translocation of Inhaled Ultrafine Particles to the Brain. Inhalation Toxicology, 16, 437-445, 2004.
• [3] Brown, D. M., Wilson, M. R., MacNee, W., Stone, V., Donaldson, K., Size-Dependent Proinflammatory Effects of Ultrafine Polystyrene Particles: A Role for Surface Area and Oxidative Stress in the Enhanced Activity of Ultrafines, Toxicology and Applied Pharmacology 175, 191-199, 2001.
• [4] Fierz, M., Burtscher, H., Steigmeier, P., Kasper, M., Field measurement of particle size and number concentration with the Diffusion Size Classifier (DiSC), SAE 08PFL-484, 2008.