A Device for Measuring Temperature and Humidity in a Spray Dryer Chamber

Kieviet, FG Frank; Raaij, J van; Kerkhof, Pjam Piet

doi:10.1205/026387697523787

Cited by 6 publications

(4 citation statements)

References 2 publications

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“…Over the recent years, as computing costs have decreased, computational fluid dynamics (CFD) has found widespread applications, particularly in the simulation of complicated flows. These include applications such as spray drying involving the motion of discrete droplets in a continuous gas stream similar to that in Venturi scrubbers. − In these studies, considerable effort has been made toward predicting the complicated gas flow pattern accurately as this dictates the discrete-phase motion. However, applications describing CFD codes using droplet spray data are limited.…”

Section: Introductonmentioning

confidence: 99%

“…These include applications such as spray drying involving the motion of discrete droplets in a continuous gas stream similar to that in Venturi scrubbers. [6][7][8][9][10][11][12][13][14] In these studies, considerable effort has been made toward predicting the complicated gas flow pattern accurately as this dictates the discretephase motion. However, applications describing CFD codes using droplet spray data are limited.…”

Section: Introductonmentioning

confidence: 99%

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Effect of Nozzle Arrangement on Venturi Scrubber Performance

Ananthanarayanan

Viswanathan

1999

Ind. Eng. Chem. Res.

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The effect of nozzle arrangement on flux distribution is studied in a rectangular, pilot-scale, Pease−Anthony-type Venturi scrubber. The annular, two-phase, heterogeneous, three-dimensional gas−liquid flow inside the scrubber is modeled using a commercial computational fluid dynamic (CFD) package, FLUENT. The comparison of predicted liquid drop concentration shows good agreement with experimental data. The model predicts the fraction of liquid flowing as film on the walls reasonably well. Visualization of flux patterns studied using four typical nozzle configurations indicate that the nonuniformity in flux distribution increases when the nozzle-to-nozzle distance is greater than 10% of the width of the side on which the nozzles are placed. An analysis of the effect of multiple jet penetration lengths on liquid flux distribution yielded a comparable distribution at 10−45% less liquid than uniform penetration for a particular nozzle configuration. This would lead to significant improvements in scrubber performance by achieving comparable collection efficiency at a lower pressure drop.

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Section: Introductonmentioning

confidence: 99%

Section: Introductonmentioning

confidence: 99%

Effect of Nozzle Arrangement on Venturi Scrubber Performance

Ananthanarayanan

Viswanathan

1999

Ind. Eng. Chem. Res.

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“…To avoid this, Nijhhawan et al [28] described that the shield should be aspirated. Kieviet et al [29] developed a temperature and humidity device which was based on protecting the temperature probe from being hit by particles by removing the particles from the gas stream. This was good in the sense that it gave results for the two air parameters, but gave no results for the effect on the particles themselves.…”

Section: Temperature Profile Comparisonmentioning

confidence: 99%

“…This was good in the sense that it gave results for the two air parameters, but gave no results for the effect on the particles themselves. Rainbow refractometry has been used to measure the temperature of droplets which is based on the refractive index that is a function of temperature, because the density changes in condensed materials with changes in temperature [29]. Gemic et al [30] such a method.…”

Section: Temperature Profile Comparisonmentioning

confidence: 99%

Simulation of Spray Dryer Chamber by the Standard K-Є, Reliable K-Є and Reynolds Stress Models Used in the Production of Thermal Spray Powders

Murtaza¹

2010

International Journal of Design and Manufacturing Technology

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Spray-drying technique which is an uninterrupted process of drying slurry is becoming an important apparatus in the production of thermal spray powders. There are several hundred commercial powders specifically developed for the various spray drying process; metals, metals alloys, ceramics, carbides and polymers. Thermal spray powders are produce using a mixed type spray dryer, as it gives higher temperature exposure and more residence time of spray to evaporate in the drying chamber. To improve the performance and prediction of process parameters of spray dryer, the CFD analysis was done, the Standard K-є, Reliable K-є and Reynolds Stress Model models were used to predict velocity profiles and temperature profile for the drying chamber. Different model results were compared, studied and compared with experimental results. The Reliable K-є method is found to have good agreement with the experiment data to predict the velocity and, mimicked the temperature profile of the drying chamber.

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Experimental investigation on humidifying performance of counter flow spray saturator for humid air turbine cycle

Wang

Weng

et al. 2007

Energy Conversion and Management

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A Device for Measuring Temperature and Humidity in a Spray Dryer Chamber

Cited by 6 publications

References 2 publications

Effect of Nozzle Arrangement on Venturi Scrubber Performance

Effect of Nozzle Arrangement on Venturi Scrubber Performance

Simulation of Spray Dryer Chamber by the Standard K-Є, Reliable K-Є and Reynolds Stress Models Used in the Production of Thermal Spray Powders

Experimental investigation on humidifying performance of counter flow spray saturator for humid air turbine cycle

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