PDF Publication Title:
Text from PDF Page: 009
Nanomaterials 2020, 10, 1321 Nanomaterials 2020, 10, x FOR PEER REVIEW 9 of 15 9 of 15 (b) Figure 4. Structure of nZNO obtained in run 23 (a), and 8 (b) (EHT = 20.00 kV, Mag = 160.00kx, WD = Figure 4. Structure of nZNO obtained in run 23 (a), and 8 (b) (EHT = 20.00 kV, Mag = 160.00kx, 9.5 mm). WD = 9.5 mm). 4. Discussion The influence of ri on the nZnO particles and total flowrate on the rotating disk was clearly visible in Figure 2. Indeed, the optimal values were 2.5 cm for ri and 0.05 L/min for QZn, i.e., 0.1 L/min as the total flowrate. These two parameters strongly influenced the fluid dynamic conditions established in the rotating liquid film, which was generated onto the surface of the disk [46]. The residence time τ [s] on the disk can be calculated as [37]: 1/3 81π2υ τ= 16ω2Q2 4/3 4/3 rd −ri (2) where Q is the total inlet flowrate [m3/s], ν is the kinematic viscosity [m2/s], assumed equal to that of water being the diluted solution, and rd [m] is the disk radius. Figure 5 summarizes the influence of ri on residence time. The increase of ri and Q caused a decrease in the reagents residence time on the rotating disk surface; therefore, τ being too low, or Q too large, may hinder completion of the reaction. Usually, these kind of precipitation reactions performed by the SDR are very rapid [38], with induction times lower than 1–1.5 ms. Therefore, the influence of the analyzed parameters on the reaction yield was quite limited within the investigated range. Indeed, at fixed ri, an increase in Q caused a yield reduction of approximately 1–3% (see Table 2), whereas when maintaining Q as constant, an increase in ri led to a yield reduction of 1–2%. These parameters also influenced the average dimension of the obtained nanoparticles, mainly due to the different specific power values dispersed in the rotating liquid film ε [W/kg] and mixing time τmix [s], as already observed in previous works [10,24]: 122 2 22 2 ε=2τωr+vr out−ωr+vr feed (3) υ0.5 τmix = 12 ε (4)PDF Image | Spinning Disk Reactor Nano Production Intensification
PDF Search Title:
Spinning Disk Reactor Nano Production IntensificationOriginal File Name Searched:
nanomaterials-10-01321.pdfDIY PDF Search: Google It | Yahoo | Bing
Turbine and System Plans CAD CAM: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. More Info
Waste Heat Power Technology: Organic Rankine Cycle uses waste heat to make electricity, shaft horsepower and cooling. More Info
All Turbine and System Products: Infinity Turbine ORD systems, turbine generator sets, build plans and more to use your waste heat from 30C to 100C. More Info
CO2 Phase Change Demonstrator: CO2 goes supercritical at 30 C. This is a experimental platform which you can use to demonstrate phase change with low heat. Includes integration area for small CO2 turbine, static generator, and more. This can also be used for a GTL Gas to Liquids experimental platform. More Info
Introducing the Infinity Turbine Products Infinity Turbine develops and builds systems for making power from waste heat. It also is working on innovative strategies for storing, making, and deploying energy. More Info
Need Strategy? Use our Consulting and analyst services Infinity Turbine LLC is pleased to announce its consulting and analyst services. We have worked in the renewable energy industry as a researcher, developing sales and markets, along with may inventions and innovations. More Info
Made in USA with Global Energy Millennial Web Engine These pages were made with the Global Energy Web PDF Engine using Filemaker (Claris) software.
Infinity Turbine Developing Spinning Disc Reactor SDR or Spinning Disc Reactors reduce processing time for liquid production of Silver Nanoparticles.
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |