Civil Engineering Archive August 10 2016, Aug 10 2016 stack gas flows through an electrostatic precipitator at a rate of 15 m3s the total collection plate area is 200 m2 and the drift velocity for the system has been determined to be w 2 1 answer an air pollution control device is to remove a pa Stack Gas Flows Through An Electrostatic Precipitator At A Rate Of M S The Total Collection Plate Area Is M And The Dri
Collection surface area the total flat projected area of collecting surface exposed to the active electrostatic field length x height x 2 x number of gas passages conduction angle the corona current flows in pulses rather than as pure direct current the percent conduction during each half cycle out of an available 833 milliseconds 60
Sep 22 2016 conventional practice limits maximum average gas velocity in high resistivity and low temperature operation to approximately 12 ms this limit avoids losses due to reentrainment of particles which can occur when the dust layer is dislodged violently in contrast precipitators run at 17 ms gas velocity at higher temperature 35
Where p is in cm of water gauge v gas velocity at the throat in ms and l liquid flow rate in lit1000 m 3 at a liquid rate of 650 lit1000 m 3 the p calculated using eq 437 is quite accurate but at a liquid rate of 1600 lit1000 m 3 the calculated p is higher than the
The calculations are carried out for a wiretoplate spacing h 0175 m length of esp l 2210 m and wiretowire spacing of 0725 m with radius of wire r wire 10 mm and inlet airparticle
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M g gas viscosity x f x c filter and cake layer thicknesses respectively k f k c filter and cake layer permeabilities respectively v superficial filtering velocity airtocloth ratio ppfpc gxfv kf gxcv kc airtocloth ratio 3 2 volumetric gas flow rate m min cloth area m q v a q a
The rate of charging of a spherical particle was determined by arendt and kallmann 2 dq p dt 1 0 v i d p 2 4 b i q p 4 en i v i d p 2 exp eq p 2 0 d p kt where t is the absolute temperature of the gas k is the boltzmanns constant and v i is the rms velocity of the gaseous ions which depends on the
The calculations are carried out for a wiretoplate spacing h 0175 m length of esp l 2210 m and wiretowire spacing of 0725 m with radius of wire r wire 10 mm and inlet airparticle
The total collection area and specific collection area sca of the esp are 1931776 ft2 and 840 ft21000 acfm respectively the esp has 5 fields in 8 parallel sections resulting in 40 cells the flue gas flow is divided into four streams before the esp and enters separate east and west sections
Total cloth area 2436 sq ft assume the baghouse is handling 13000 acfm of air air to cloth ratio acfm total cloth area 13000 2436 534 1 different baghouse designs there are three main types of baghouse systems currently in use today
The discharge electrode is of small crosssectional area such as wire or piece of flat stock and the collection electrode is large in surface area such as a plate esp process 1 ionizing the gas 2 charging of the dust particles 3 transporting the particles to the collecting surface 4 neutralizing or removing t he charge from the
Total cloth area 2436 sq ft assume the baghouse is handling 13000 acfm of air air to cloth ratio acfm total cloth area 13000 2436 534 1 different baghouse designs there are three main types of baghouse systems currently in use today
In general how do changes in the area of collecting electrodes in the gas flow rate and in the drift velocity affect electrostatic precipitator collection efficiency a electrodes proportional to charge of the particles the bigger the better
Aug 10 2016 stack gas flows through an electrostatic precipitator at a rate of 15 m3s the total collection plate area is 200 m2 and the drift velocity for the system has been determined to be w 2 1 answer an air pollution control device is to remove a particulate that is being emitted at a concentration of 125000 gm3 at an air flow rate of 200 m3s
M g gas viscosity x f x c filter and cake layer thicknesses respectively k f k c filter and cake layer permeabilities respectively v superficial filtering velocity airtocloth ratio ppfpc gxfv kf gxcv kc airtocloth ratio 3 2 volumetric gas flow rate m min cloth area m q v a q a
The total parallel plate collecting area is 2342 m225200 ft2 and the transverse baffles which are perpendicular to the gas flow provide ad ditional collecting electrode area the effective collecting area provided by these baffles was estimated as 390 m24200 ft2 resulting in a total collection area
The compressive strength was measured according to the standard of iso470016 and the falling strength drop no was counted through repeated pellet falling from a height of 05 m to the steel plate with the thickness of 001 m until it cracked in total 10 balls were measured and the average was taken
In the filter area the biggest pressure is 530 pa and the speed in the bags was changing from 1 ms to 4 ms bags located at the front of fabric area are tend to be damaged due to the fast flue
Efficiency of electrostatic precipitator eta 1efracwaq where is the fractional collection efficiency w is the terminal drift velocity in ms1 a is the total collection area in m 2 q is the volumetric air flow rate in m 3 s1 types of electrostatic precipitator
The total gas originating from the primary mixers stack was taken to the esps inlet duct that collected most of the particulate matter b cleaning work reduction in the stacks area before the installation of the dedusting system the mixers stack had exhaustion by natural circulation and therefore the stacks
The precipitator includes main sections each having a plurality of spaced parallel collection plates with discharge electrodes being interposed between the collection plates the plates extend in the direction of flow of a gaseous medium sprays of water are continuously directed against the collection plates the gas enters through a diverging inlet section in which there are arranged several
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