عنوان :
بررسي تجربي تاثير استفاده از نانو سيالات در فرايند جذب از گاز
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مهندسي شيمي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مهندسي شيمي
صفحه شمار :
سيزده، 66ص.: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
مسعود حق شناس
توصيفگر ها :
ضريب انتقال جرم , برج ديواره مرطوب
تاريخ نمايه سازي :
3/12/90
استاد داور :
محمد قريشي، محمدرضا احساني
تاريخ ورود اطلاعات :
1396/10/12
رشته تحصيلي :
مهندسي شيمي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
78 Experimental Investigation on Using of Nanofluids in the Gas Absorption Process Zahra Samadi z samadi@ce iut ac ir Date of Submission 2011 9 18 Department of Chemical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language FarsiSupervisor Haghshenas Fard haghshenas@cc iut ac irAbstractGas absorption is an operation in which a gas mixture is contacted with a liquid for the purpose of preferentiallydissolving one or more components of the gas mixture and to provide a solution of them in the liquid Generally there are three methods in the absorption enhancement the mechanical treatment the chemical treatment andnanotechnology techniques This thesis is related to the experimental investigation on using of nanofluids in thegas absorption process in a wetted wall column To study the proposed title a glass wetted wall column wasdesigned and subsequently fabricated The inner and outer diameters of column are 28 and 32 mm and theheight of the column is 1 45m This column equipped with liquid distributor gas inlet system and liquid flowmeter In this work Fe3O4 Water Al2O3 Water and TiO2 Water nanofluids were used as solvent in theabsorption process Effect of gas and liquid flow rates and also effect of magnetic eld on the mass transfer rateand mass transfer coefficients at different nao particles concentrations were investigated Al2O3 water nanofluidwith concentration of 0 01 0 05 0 1 0 5 1 v v TiO 2 water nanofluid with concentration of 0 05 0 1 and 0 5v v and Fe3O4 water nanofluid with concentration of 0 005 0 008 and 0 024 v v have been used The gasand liquid flow rates in the experiments are 1 and 5 lit min for gas phase and 3 1 4 68 6 66 mlit s for liquidphase Effect of magnetic field attended on base fluid and Fe3O4 Water nanofluid In the case of base fluid theelectric current intensity of 0 0 5 1 and 1 5 A have been used in direct of falling film and against direct offalling film In the Fe3O4 Water nanofluid the intensity of electric current was 1 A in direct of falling film Experimental results showed that the Al2O3 water nanofluid has higher mass transfer rate and mass transfercoefficient in comparison to the base fluid water Mass transfer coefficient and mass flux were enhanced forAl2O3 water nanofluid and the enhancement value was increased with increasing of nanoparticle concentration The results showed that the increase in mass transfer coefficients and mass flux are 55 and 90 for a fixedvolume fraction of 1 Mass transfer coefficients and mass flux have decreased by using TiO2 water nanofluid In this nanofluid at the concentration of 0 05 the reduction in mass transfer coefficient and mass transfer ratewas 16 and 5 respectively Effect of magnetic field has been investigated in base fluid water andFe3O4 Water nanofluid The increase in mass transfer rate and mass transfer coefficient in water system is 22 and 59 for a fixed electric current intensity of 1A In this system when the direction of magnetic eld is sameto the direction of falling lm the mass transfer coefficient increases and when the direction of magnetic eldis against to the direction of falling lm the mass transfer coefficients decreases In the Fe3O4 Water nanofluid the increase in mass transfer coefficient at intensity of 1A is 53 In this nanofluid the mass transfer rateincreased by increasing in nanoparticle volume fraction but under all of the conditions the mass transfer ratesand mass transfer coefficients are lower than base fluid water Keywords absorption nanofluid mass transfer coefficient wetted wall column
استاد راهنما :
مسعود حق شناس
استاد داور :
محمد قريشي، محمدرضا احساني