Riser Pipe Pressure Pulsation Standard Deviation Fast Forecast Spouted Bed Granular Poly Group

Abstract:

At the different elevation of the spouted bed riser pipe layout pressure measuring point, each point below is equipped with purge air, avoid the granular poly group on the pressure measuring point, by adjusting the frequency of the bandpass filter, guarantee the accuracy of pressure measurement. Through experimental study, under the low superficial air velocity, riser pipe pressure pulsation standard deviation has a linear relationship with the superficial air velocity and obey the chi-square distribution, based on the above found , rising pipe pressure pulsation standard deviation forecast the incidence of granular poly group is proposed in this paper. By comparing rising pipe pressure pulsation standard deviation forecast method with conventional average pressure drop forecast method found, rising pipe pressure pulsation standard deviation has higher superficial air velocity recognition rate and less response time when the granular poly group,achieves the spouted bed fast forecast the granular poly group phenomenon.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 3397-3402
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.3397
• Online since: October 2013
• Authors: Yun Long Zhou, Ning Yang*
• Keywords: Forecast, Granular Poly Group, Riser Pipe, Standard Deviation

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