Abstract
Power consumption reduction investigations attracted the attention of enormous numbers of researchers in the past few decades due to its high academic and economic impacts. The pumping power losses during the transportation of crude oils are considered as one of the main power consuming applications due to the turbulent mode of transportation. Investigating the possible solutions for this problem is expensive and time consuming due to the large apparatuses needed to simulate the flow in real pipelines. Rotating disk apparatus (RDA) is an instrument mainly comprising a rotating disk and an electrical motor to rotate the disk, which was implemented as an efficient and economical path to simulate what can be done in pipelines through generating a controlled degree of turbulence. This technique was also used in many other scientific applications due to its dynamic mode of operation. For example, a rotating disk electrode was used in electrodeposition processes and to characterize deposition film thickness and uniformity. The rotating disk reactor was employed to investigate the reaction rate between fluids and solid surfaces. The present work evaluates the RDA from different prospective and applications in order to introduce it as an efficient research tools for future dynamic investigations.
Highlights
In industry and research many types of rotating disk apparatus have been used, which can be classified and named depending on their use and application
The results showed a high efficiency level of drag reduction for grafted polymer and the mechanical degradation rate was slower than the homopolymers degradation rate
Different applications of rotating disk apparatus and the effect of numerous parameters on these applications were discussed in this study
Summary
In industry and research many types of rotating disk apparatus have been used, which can be classified and named depending on their use and application. The rotating disk instrument is increasingly being applied in the laboratory to study the reaction between fluids and solid surfaces. It is widely used in the petroleum industry for kinetic studies of the reaction of acidic fluids and chelating agents with reactive rock A number of studies have analysed the drag reduction of a flow by additives through other techniques; such as a cylindrical double gap rheometer device (Kalashnikov, 1998), coaxial cylinders (Bizotto & Sabadini, 2008; Nakken, Tande & Elgsaeter, 2001) and rotating disk apparatus (RDA) In this study, rotating disk apparatus types and their application will be illustrated in three aspects: reactor, electrode, and drag reduction
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