Development of a fast-response, high-resolution electrical mobility spectrometer

Panich Intra; Nakorn Tippayawong

Korean Journal of Chemical Engineering, Vol.28, No.1, 279-286, January, 2011

DOI10.1007/s11814-010-0326-0 Export Citation

Development of a fast-response, high-resolution electrical mobility spectrometer

Panich Intra^†, and Nakorn Tippayawong¹

College of Integrated Science and Technology, Rajamangala University of Technology Lanna, Chiang Mai 50300, Thailand
¹Department of Mechanical Engineering, Chiang Mai University, Chiang Mai 50200, Thailand

E-mail:

A short electrical mobility spectrometer (EMS) for measuring aerosol size distribution has been developed and presented [Intra and Tippayawong, Korean J. Chem. Eng., 26, 1770, 2009]. In this work, further improvement of the short EMS into a fast-response, and high resolution instrument is presented. This was done by (i) improvement in particle charging, (ii) utilization of faster flow rate, and (iii) adoption of higher number of electrode rings. The so-called “long” EMS consists of three main parts: a particle charger, a long multi-channel size classifier column, and a multichannel electrometer. Performance of the long EMS was preliminarily tested using polydisperse, carbonaceous aerosol particles generated by a diffusion flame. Preliminary test results showed that the long EMS performed comparatively well, and gave faster response and higher resolution than the short EMS. It was a valuable aerosol instrument available for measuring size distribution of aerosol particles.

Keywords:Aerosol;Particle;Electrical Mobility;Spectrometer;Electrometer

[References]

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Intra P, Tippayawong N, J. Electrostat., 67, 605 (2009)
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Intra P, Tippayawong N, Chiang Mai J. Sci., 36, 110 (2009)
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Intra P, Tippayawong N, Korean J. Chem. Eng., 26(1), 269 (2009)
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National Semiconductor Corporation, LMC662 Data Sheet (2003)

[1] Flagan RC, Aerosol Sci. Technol., 28, 301 (1998)

[2] Liu BYH, Pui DYH, J. Aerosol Sci., 6, 249 (1975)

[3] Knutson EO, Whitby KT, J. Aerosol Sci., 6, 443 (1975)

[4] Intra P, Tippayawong N, Mj. Int. J. Sci. Technol., 1, 120 (2007)

[5] Intra P, Tippayawong N, Songklanakarin J. Sci. Technol., 30, 243 (2008)

[6] TSI Incorporated, Operation and service manual for scanning electrical mobility sizer model 3936, Minnesota, USA (2006)

[7] Tammet H, Mirme A, Tamm E, Atmos. Res., 62, 315 (2002)

[8] TSI Incorporated, Operation and service manual for engine exhaust particle sizer model 3090, Minnesota, USA (2004)

[9] Biskos G, Reavell K, Collings N, Aerosol Sci. Technol., 39, 527 (2005)

[10] Intra P, Tippayawong N, Korean J. Chem. Eng., 26(6), 1770 (2009)

[11] Graskow BR, Design and development of a fast aerosol size spectrometer, Ph.D. Thesis, University of Cambridge, UK (2001)

[12] Intra P, Tippayawong N, J. Electrostat., 67, 605 (2009)

[13] Intra P, CMU. J. Nat. Sci., 7, 257 (2008)

[14] Intra P, Tippayawong N, Chiang Mai J. Sci., 36, 110 (2009)

[15] Intra P, Tippayawong N, Int. J. Appl. Electrom. Mech., Submitted.

[16] Intra P, Tippayawong N, Korean J. Chem. Eng., 26(1), 269 (2009)

[17] Intra P, Lasman PB, Tippayawong N, Int. J. Eng. Appl. Sci., 2, 16 (2010)

[18] Intra P, Tippayawong N, J. Aerosol Res., 21, 329 (2006)

[19] Yawootti A, Intra P and Tippayawong N, 32nd Electrical Engineering Conference, Prachinburi, Thailand, 28-30 October (2009)

[20] National Semiconductor Corporation, LMC662 Data Sheet (2003)