000			03158nam a2200253 a 4500
001			vtls000045461
003			KUKTEM
005			20251114204425.0
008			100429t2009 my a f m 000 0 eng|d
020			_aTHE0002263(Local)
039		9	_a201905241132 _bshamsul _c201107132316 _dVLOAD _c201004291511 _dida _y201004291438 _zida
040			_aUMP
090			_aQP702.C5 K43 2009 rs Bc.
100	0		_aNur Khadijah Mohamad Najib
245	1	0	_aStudying the effect of chitosan as drag reducing agent in water flowing systems with different concentration and preparation using different acid types / _cNur Khadijah Binti Mohamad Najib
246	3		_aStudying the effect of chitosan as drag reducing agent in water flowing systems with different concentration and preparation using different acid types _h[electronic resource]
260			_aKuantan, Pahang : _bUMP, _c2009
300			_axii, 98 p. : _bill. (some col.) ; _c30 cm. + _e1 computer file
502			_aProject paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang - 2009
504			_aBibliography : p.[64]-66
520	3		_aThe investigation of turbulent drag reduction, which is caused by the addition of a small amount of polymer or some other substances to the liquids flowing systems has been the focus of attention of many scientists for the last decades. Due to the reduction of the drag, pumping power for the pipeline will significantly reduced and thus will decrease the cost of electricity in total production cost. It also has great impending in the industrial applications, such as in liquid pipeline transportation. In the present work, a new drag reducing agent has been devised from natural occurring polymer based which is Chitosan. The polymer additive prepared is tremendously cheaper compared to other commercial drag reducing agents and nevertheless offering the comparable performance in reducing drag. The method of preparation the additive is uncomplicated, not time consuming and most of the compound used are fulfilling natural need. Two types of chitosan solution is prepared using different types of acid and three different proportion of volume in the solution and each solution are measured in term of viscosity The turbulent drag reductions are measured by reading the value of pressure drop along the pipeline re-circulatory flow system of approximately 400 kg tap water. A drastic reduction of drag in the turbulent flow of solutions as appraised with pressure drop reduction in comparison to the pure solvent can be observed, even when only minute amounts of the additives are added. The % of drag reduction is relatively increases as the increases concentration of polymer DRA. Approximately 80.842% of maximum drag reductions for solution prepared with hydrochloric acid are obtained before no more reductions can be achieved as it reached concentration limits. the drag maximum drag reduction point for this type of solution are slightly higher than solution prepared with acetic acid but shows the drastic reduction in %DR.
650		0	_aChitosan
999			_aVIRTUA40 _c1780 _d1786
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5040*5200*6500*9992