Numerical and experimental study of an innovative pipeline design in a granular pneumatic-conveying system

Practical aspects in modeling the air conveying modes of small–piece food products

“…The power voltage in the control chain is 24 VDC (±10 %) in accordance with the selected proportional distributor AP. The flow rate of compressed air will depend on the value of incoming mainline pressure P (0.1...0.3 MPa), and, according to data reported in [17,18], are 80...160 (Nl/min).…”

“…The use of empirical procedures [7,9,16] cannot provide a complete calculation of the installations, including changes in the characteristics of a two-component flow under different installation's modes of operation [17][18][19]. Using the most general theoretical description of the pneumatic conveying process mentioned in papers [1,8], objective difficulties associated with a complicated system of equations [4,5] in features of the control system with controlled feedback.…”

“…In addition, the pneumatic conveying process is addressed in works [16,17]. The authors described and determined the resistance ratios that significantly affect the movement of two-phase environments in different parts of the pipeline.…”

“…Based on the analysis of scientific research, it has been established that there is no single point of view on the creation of a universal estimation model of pneumatic conveying flows [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

“…The power voltage in the control circuit is 24 VDC (±10 %) in accordance with the chosen proportional distributor AP. The flow rate of compressed air will depend on the value of the incoming mainline pressure P (0.1...0.3 MPa), and, according to data from [17,18], are 80...160 (Nl/min). The use of pneumatic conveying automation methods is based on a model that represents the integrated ideas about particle movement in an inseparable flow in a dense phase.…”