Study of drag reduction by using guar gum and gum Arabic mixtures / Abdul Razzak Kabbara
Date of Award
10-1-2021
Thesis Type
masters
Document Type
Thesis (Restricted Access)
Divisions
eng
Department
Faculty of Engineering
Institution
Universiti Malaya
Abstract
Since Toms documented drag reduction in 1949, many researched all over the world are exploring different drag reducing agents hoping to better understand the drag reduction phenomenon and hoping to find best agents for different applications. Many drag reducing agents offered great drag reduction but due to their negative effects on the environment, the focus is switching to biopolymers, a natural ecofriendly alternative. So far, few studies explored the potential of biopolymers to reduce drag, and fewer number of studies tested biopolymer mixers. In this research, guar gum and gum Arabic mixtures of three different ratios at 300 ppm concentration were examined using a closed loop piping system. To study drag reduction as well as the mixture’s resistance to heat, two tests were performed for each mixture both at bulk temperature of 30°C. One test without any heating while the other involved continuous heat flux of 3400 W. Several interesting conclusions were found. First, as the ratio of guar gum increased in the mixture, the drag reduction increased. The best drag reduction of 22.65% was achieved by the mixture composed of 50% Guar Gum with 50% Gum Arabic. Finally, for all the fluids considered in the study and for velocities greater than 1 m/s, heating reduced drag reduction.
Note
Dissertation (M.A) - Faculty of Engineering, Universiti Malaya, 2021.
Recommended Citation
Abdul Razzak, Kabbara, "Study of drag reduction by using guar gum and gum Arabic mixtures / Abdul Razzak Kabbara" (2021). Student Works (2020-2029). 950.
https://knova.um.edu.my/student_works_2020s/950