Enhancement of Convective Heat Transfer with Nanofluids Single Phase and Two Phase Analysis

Sert, İsmail Ozan
Sezer Uzol, Nilay
Güvenç Yazıcıoğlu, Almıla
Kakaç, Sadık


Enhancement of biodegradability by continuous ozonation in Acid Red-151 solutions and kinetic modeling
Gokcen, F; Ozbelge, TA (Elsevier BV, 2005-11-15)
In this work, continuous ozonation of aqueous Acid Red-151 was performed in a stirred tank reactor at neutral pH and 25 degrees C. The results show that ozonation is capable of a rapid conversion of the Acid Red-151 dye molecule to more biodegradable intermediates up to the ozonation time of 120 min at which the optimum BOD5/COD ratio is obtained. The peak BOD5/COD ratios were found to be in the range of 0.028-0.35 for the initial dye concentrations being in the range of 1000-100 mg/L, respectively.
Enhancement of optical parametric amplification in microresonators via gain medium parameter selection and mean cavity wall reflectivity adjustment
Asirim, Ozum Emre; Kuzuoğlu, Mustafa (IOP Publishing, 2020-09-01)
This paper computationally investigates the effect of the polarization decay rate (gamma), and the peak resonance frequency (f(0)) on optical parametric amplification inside a low-loss micro resonator. It is found that, for lower values of the polarization decay rate and the peak resonance frequency, the magnitude of amplification can be significantly higher. However, it was also observed that beyond a certain threshold value of the polarization decay rate, the gain factor of the amplification sharply reduc...
Enhancement of Perovskite Solar Cell Efficiency by Optical Engineering
Koç, Mehmet; Wiria, Soltanpoor; Yerci, Selçuk (null; 2017-05-26)
Enhancement of plasmonic nonlinear conversion and polarization lifetime via fano resonances
Yıldız Karakul, Bilge Can; Bek, Alpan; Taşgın, Mehmet Emre; Department of Physics (2017)
Boundary conditions and dispersion at dielectric-conductor interfaces, together, results in bands of energies or wavelengths of light within which light-matter interaction strength displays peaks as a result of fulfilled resonance conditions. At these resonance energies light propagation is strongly coupled to collective oscillation of free charges at the dielectric-conductor interface which qualifies to be given a quasiparticle name, "the surface plasmon polariton" (SPP). When dealing with zero-dimensional...
Optimization of Selective Electrophoretic Deposition and Isostatic Compression of Titania Nanoparticles for Flexible Dye-Sensitized Solar Cells
Kocaoglu, Bahadir Can; Icli, Kerem Cagatay; Özenbaş, Ahmet Macit (2016-04-01)
Flexible photoanodes on PEN/PET based substrates for dye-sensitized solar cells (DSSC) by using electrophoretic deposition (EPD) method for the formation of titania nanoporous layer with titania nanoparticles (P-25) were produced. Considering commercially available titania nanoparticles containing both anatase and rutile phases, the undesired rutile nanoparticles, for DSSC applications, were almost eliminated from the coatings by selective pH adjustment of the EPD solutions without any binders. The coating ...
Citation Formats
İ. O. Sert, N. Sezer Uzol, A. Güvenç Yazıcıoğlu, and S. Kakaç, “Enhancement of Convective Heat Transfer with Nanofluids Single Phase and Two Phase Analysis,” 2013, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/73020.