@article { author = {Karparvarfard, Sayed Hossein and Farahani, Azam}, title = {An Experimental Correlation for Friction Factor in Horizontal Pipe with Trapezoidal Section Inner Longitudinal Slots for Conveying of Solids}, journal = {Iranian Journal of Chemistry and Chemical Engineering}, volume = {29}, number = {1}, pages = {83-91}, year = {2010}, publisher = {Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR}, issn = {1021-9986}, eissn = {}, doi = {10.30492/ijcce.2010.6732}, abstract = {In order to increase the efficiency of the conveyance of the granular solids, a new experimental set-up is designed. The test rig has longitudinal trapezoidal slots in its conveying pipes. Through experimentation, a correlation for friction factor in terms of solid mass flow rate, fluid flow rate and Froude number is presented. It is shown that the mixture friction factor for pipes with inner trapezoidal slots is 40% smaller than that of pipes with inner rectangular slots. As a result, the arrangement helps to convey materials to longer distances for a given pressure setting.}, keywords = {Dense Phase,Mixture friction factor,Dimensional analysis,longitudinal slots}, url = {https://ijcce.ac.ir/article_6732.html}, eprint = {https://ijcce.ac.ir/article_6732_2ec01695da2604a742a4f521f792ec6c.pdf} }