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Title: Investigation into the performance and optimisation of pneumatic conveying systems with stepped pipelines
Author: Folarin, Olalekan A.
ISNI:       0000 0004 6422 0176
Awarding Body: Glasgow Caledonian University
Current Institution: Glasgow Caledonian University
Date of Award: 2016
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Pneumatic conveying of particulate material has been used in various industries, such as cement, alumina, chemical, agriculture, power, pharmaceuticals, limestone, refinery construction, and food. The importance of pneumatic conveying systems in the process industry has grown over the years as greater understanding has driven innovation and led to increased efficiencies. The knowledge of the amount of solids and pressure drops required are of great importance for settling commercial transactions, for quality control purposes, and in setting design criteria. The use of dense phase conveying has become popular due to its minimum gas flow, reduced power consumption, improved product quality, and increased level of safety in the workplace. In long distance pneumatic conveying, however, air velocity increases can reach unreasonable limits. This increase in conveying velocity as a result of gas compressibility has been documented to cause pipeline erosion and product degradation. The drive for improvements in particulate material transportation in pneumatic conveying systems has resulted in the use of stepped pipes to enhance performance. The stepped pipeline helps to control conveying velocities when reaching unreasonable limits. The drawbacks which the stepped pipeline setup intends to address are: particle attrition, pipe degradation, high pipeline pressure losses, etc. The limited experimental works to date on the behaviour of solids-gas flow at the pipeline step suggests the complexity of the behaviour of solids-gas flow in this region. This study investigates and presents an experimental investigation into the use of stepped piping in a pneumatic conveying system. Performance comparisons were made between single bore and stepped pipe setups. The results obtained were analysed and are presented in this study.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available