Synthesis and evaluation of properties and energy transportation characteristics of gum Arabic and gum guar in heat exchanger / Suga Ganeshan Kalaichalvan

Suga Ganeshan, Kalaichalvan (2021) Synthesis and evaluation of properties and energy transportation characteristics of gum Arabic and gum guar in heat exchanger / Suga Ganeshan Kalaichalvan. Masters thesis, Universiti Malaya.

	PDF (The Candidate’s Agreement) Restricted to Repository staff only Download (781Kb)
Preview	PDF (Thesis M.A) Download (1700Kb) | Preview

Abstract

Current interest in “oil and gas” sectors, as well as in the use of reduced pumping energy, have driven the use of drag lowering additives for such sectors. Slurry transportation by cost-effective and environmentally friendly means by using biodegradable compounds, as the additives can achieve these advantages. To examine the drag lowering polymeric additive in the turbulent flow regime, a closed loop of an insulated circular (ID 41.5mm) aluminium pipe test rig was used. Gum guar and gum Arabic were the adaptive or drag lowering agent used by mixing in distilled water. For the experimental research, the pulp disintegrator was utilized to generate a diluted combination of additive in distilled water. For composition in all the cases, some general correlations for pressure drop, friction factor, and drag reduction percentages were established by applying heat and without heat to the following solution. The degree of pressure drop decrease (drag reduction) was depending on concentrations and technique of dispersion. Additive concentration, flow velocity and temperature of the water affected the pressure drop results. An empirical correlation was used to verify the water data and found satisfactory results with error about 8% in the specified range of Reynolds number (18,000 to 167,000). In the present work Guar Gum (GG) and Gum Arabic (GA) solutions were investigated individually, and then mixture of the two were also investigated for drag reduction. For the mixture of GG:GA-70:30 (200 ppm of additive concentration) the decrease in drag reduction was in between 30-35% without heat and at lower velocity and 20-25% at higher velocity and with and without heating. From this experimental research, it showed that the Gum Guar was more helpful in enhancing the drag reduction in pipelines compared to that of Gum Arabic alone in the solution and a little addition of on in the other have changed significant drag reduction data.

Actions (For repository staff only : Login required)