Effectiveness of Electrostatically Charged Water Spray in Reducing Dust Concentration in Enclosed Spaces

Almuhanna, Emad A.; Maghirang, Ronaldo G.; Murphy, James Peter; Erickson, Larry E.

doi:10.13031/2013.24221

Cited by 16 publications

(19 citation statements)

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“…The droplets ranged in size from approximately 25 to 60 m as stated by the manufacturer. The mean net charge-to-mass ratio of the charged droplets was -6.5 mC/kg (SD=0.9 mC/kg) for the negatively charged water spray [12]. Almuhanna [11] studied the size distribution and concentration of the airborne droplets by using the Aerodynamic Particle Sizer (APS) Spectrometer model 3321 (TSI Incorporated, 500 Cardigan Road, Shoreview, MN 55126, USA).…”

Section: Methodsmentioning

confidence: 99%

“…For the wood shavings: T out = -1.8519(T in ) + 118. 12 (R² = 0.722) (4) For the date palm fiber, a fair association (r = 0.66) was found between inlet and outlet air temperature. This relationship shows that an increase in the inlet air temperature was mostly due to an increase in the outlet air temperature.…”

Section: Enhancing the Cooling Effect Of An Electrostatic Wet Scrubbermentioning

confidence: 99%

“…Compared to inertial scrubbers, the electroscrubbers can operate at lower droplet velocities, but the collection efficiency for a single droplet can be > 1 [10]. In some cases, electrostatics have been used to augment particle removal efficiency of water droplets [11][12]. Almuhanna et al [12] indicated the potential of electrostatically charged water spray in reducing the dust concentration in enclosed spaces under controlled conditions.…”

Section: Introductionmentioning

confidence: 99%

“…In some cases, electrostatics have been used to augment particle removal efficiency of water droplets [11][12]. Almuhanna et al [12] indicated the potential of electrostatically charged water spray in reducing the dust concentration in enclosed spaces under controlled conditions. Typically, the smaller the droplet size and the larger the number of droplets, the better is the ability to capture smaller-sized particles.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing the Cooling Effect of an Electrostatic Wet Scrubber

Almuhanna¹

2016

IOSR

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Section: Methodsmentioning

confidence: 99%

Section: Enhancing the Cooling Effect Of An Electrostatic Wet Scrubbermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhancing the Cooling Effect of an Electrostatic Wet Scrubber

Almuhanna¹

2016

IOSR

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“…Then particles become adhesive, are retained in straw and their dispersion is diminished. Almuhanna et al (2008) carried out an experiment under controlled laboratory conditions and concluded that spraying with charged water improves the efficiency to remove PM. They also found that the removal efficiency is significantly greater during longer charged water spray durations (4 and 6 min) than during shorter duration (2 min), while the spraying method and the charge polarity did not significantly influence particle removal efficiency.…”

Section: Pm Concentrationsmentioning

confidence: 99%

Monitoring particulate matter levels and climate conditions in a Greek sheep and goat livestock building

Papanastasiou

Fidaros

Bartzanas

et al. 2011

Environ Monit Assess

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Atmospheric pollutants from livestock operations influence air quality inside livestock buildings and the air exhausted from them. The climate that prevails inside the building affects human and animal health and welfare, as well as productivity, while emissions from the building contribute to environmental pollution. The aim of this study was to examine the variation of two climatic parameters (namely temperature and relative humidity) and the levels of particulate matter of different sizes (PM10-PM2.5-PM1), as well as the relationships between them, inside a typical Greek naturally ventilated livestock building that hosts mainly sheep. The concentration of particles was recorded during a 45-day period (27/11-10/1), while temperature and relative humidity were observed during an almost 1-year period. The analysis revealed that the variation of outdoor weather conditions significantly influenced the indoor environment, as temperature and relative humidity inside the building varied in accordance to the outside climate conditions. Temperature remained higher indoors than outdoors during the winter and extremely low values were not recorded inside the building. However, the tolerable relative humidity levels recommended by the International Commission of Agricultural Engineering (CIGR) were fulfilled only in 47% of the hours during the almost 1-year period that was examined. This fact indicates that although temperature was satisfactorily controlled, the control of relative humidity was deficient. The concentration of particulate matter was increased during the cold winter days due to poor ventilation. The maximum daily average value of PM10, PM2.5 and PM1 concentration equaled to 363, 61 and 30 μg/m(3) respectively. The concentration of the coarse particles was strongly influenced by the farming activities that were daily taking place in the building, the dust resuspension being considered as the dominant source. A significant part of the fine particles were secondary, which the production of could be attributed to an increase in relative humidity levels. It is concluded that measures have to be adopted in order to achieve sufficient ventilation and to reduce particulate matter levels.

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