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Introduction Microfluidic Device - Assignment

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Added on  2021-04-17

Introduction Microfluidic Device - Assignment

   Added on 2021-04-17

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Assignment Name:Course:Date of Submission1 | Page
Introduction Microfluidic Device - Assignment_1
Question 1.IntroductionMicrofluidic device. [ CITATION kab09 \l 1033 ]These are devices which are normally used in biology and bio-techniques for diagnosis, most of these devices may be categorized either passive or active device. Both active and passive have several parts. Active micro fluids consist of microfluidic valves that pump automatically while passive consists of mixers, rich chambers gradient generator splitters and mixers.Improving your pressure pump.Increase in pressure pump increases the rate of flow in microfluidic and pulse flow where device in pressure pump reduces rate of pulse flow in microfluidic. (Thorsen,2009) Microfluidic have no moving parts hence pressure device flows is much more smooth. Pressure increases in the liquid depending on the speeding of the liquid hence enable faster flow rate.Increase radius by 10%When micrometric diameter of the tube is increased more air bubbles are formed inside the microfluidic device. [ CITATION Chu10 \l 1033 ]This are the bubbles, which are very detrimental and very difficult to remove during experimental set up. Due to air bubbles there will be high range of solution in microfluidic device. The presence of air bubbles inside microfluidic device will cause flow rate instability and this increases the pressure equilibrium in microfluidic device. This is because air will absorb some of the pressure inside the microfluidic device.By increasing the length by 50%-this is the best method to be usedWhen the length of a microfluidic device for example increases the Reynold number will be high and the flow will also be high hence mass becomes smaller (Yang,2006). When the length is reduced, the Reynold number decreases and flow will become laminar and mass increases.Decrease the flow speed by 25%Decreasing the flow speed of the fluid will reduce the strength of micro fluid. The rate at which micro fluid will move will determine the rate flow. Mellor’s (2010) At a low rate of speed flow, the air bubble will accommodate in microfluidic device which will reduce the rate of pulse flow in the microfilm.2 | Page
Introduction Microfluidic Device - Assignment_2
Question 2(i)(Lagally,2010). Increase in the rate of change in temperature will increase the magnitudeof the film. The heat flow across the thin film layer of the microfilm enhances magnitudeincrease. The temperature variations of layer is the heat capacity of thermal-conduct of the microfilm layer. Whenever there is a thin film there is consequently increase in magnitude of the microfilm.(ii) Wavelength is inversely proportional to frequency.QuestionCurrent=I=PA AT/tCurrent=PA AT/tP=pyroelectric coefficient. 20×10-6cm/m2A=Area of electrode. 3×10-4m2T=change in temperaturet=TimePA(AT)/RCAnd whenever there is thick film there is less magnitude. This implies that temperature also depends upon thickness of the film.αVconstant(c)Where speed c= speed of lightVα€Or €αV€=hV where h constant(a)PA(AT)/RC1=PA AT/tPACAT/3×10-4m×20×106cm/m2=60×1023 | Page
Introduction Microfluidic Device - Assignment_3

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