... liquid film thickness planar laser-induced fluorescence interfacial friction factor visualization theoretical analysis Japan Science and Technology Agency 10.13039/501100002241 JPMJSP2136 In order to achieve net-zero CO 2 emissions, technical innovations are needed in the power...

... Nonintrusive diagnostics Sprays Two-phase Visualization Wear The change in energy production from fossil fuels to renewable sources results in a fluctuation of the produced electric energy. To ensure grid stability, a higher flexibility of conventional power plants is getting more and more...

... energy sources Combustion Energy Energy conversion Engines Fuel combustion Internal combustion engines Internal flow Power Swirling Thermodynamics Turbulence Turbulent Visualization Co- generation Modern co-generation spark ignition units are one of the most effective technologies...

... 2018 26 02 2018 Flame Fuels Internal combustion engines Natural gas technology Nonintrusive diagnostics Visualization Combustion Low-carbon fuels such as natural gas (NG) have the potential to lower the demand of petroleum-based fuels, reduce engine-out emissions...

... online May 24, 2018. Editor: David Wisler. 08 11 2017 30 12 2017 Burners Combustion Combustors Experimental Flame Gas turbine technology Heat transfer Nonintrusive diagnostics Swirling Temperature Turbulent Visualization Flow velocities within combustors have been...

... torque. A dedicated oil control unit is adopted for providing lubricant oil ISO 46 at controlled mass flow rate and temperature. The spur gear is housed inside a test box, which is composed by removable plates, for both assembling and visualization purposes. Although the test box volume is big enough...

... Installed calibration results, uncorrected The wet gas compressor used for the experiment is a single-stage centrifugal machine made to operate near ambient pressure. Because the primary experimental interest was flow characterization and visualization rather than performance, the compressor...

... levels of the oscillation amplitude. Second, distributed flame dynamics are investigated by means of visualizing the mean and oscillating heat release distribution at different pulsation amplitudes. The observed flame dynamics are then compared against numerical evaluations of the respective amplitude...

... by interpolating in cylindrical coordinates over all the slices. These three volumes were then again added together, averaged, mirrored in z , and smoothed to obtain the final 3D data (this means symmetry in z is enforced here). The data are then visualized by isosurfaces of the respective quantities. Note...

... loss, increase in smoke, harmful emissions, and reduced fuel economy [ 10 – 12 ]. Spray visualization studies previously conducted to classify the degree of coking in injectors and to evaluate their detrimental effects on the spray field were mostly based on the image analysis of the cone angle...

... between the ignition probability field and the airflow turbulent kinetic energy and velocity fields. Local equivalence ratio enhances the importance of the ORZ. Once a successful ignition is accomplished on one injector, the injector-to-injector flame propagation must be examined. High-speed visualization...

... in the U.S. Government's contributions. 26 05 2017 04 07 2017 Aeronautical propulsion Combustors Computational Experimental Gas turbine technology Swirling Turbulent Visualization Aerospace Propulsion systems Steady pressure from a variety of sources has driven...

... researchers in recent years. An estimate of 10% power output improvement of the engine could be achieved at the same fuel consumption if the CCV would have been eliminated [ 4 ]. By virtue of the rapid development of high spatial/temporal laser diagnostic techniques, researchers are able to visualize...

... . Manuscript received June 28, 2016; final manuscript received July 12, 2016; published online September 27, 2016. Editor: David Wisler. 28 06 2016 12 07 2016 Measurement techniques Component maintenance Visualization Component operations The regeneration of jet engines...

... combustion engines Internal flow Measurement techniques Nonintrusive diagnostics Temperature Unsteady flows Visualization Combustion To comply with the emission targets of ACARE 2020 and to reduce fuel burn of aero-engines, one technological approach is to improve the thermal efficiency...

... of the PVC, the so-called wavemaker. A manipulation of the flow field at this location impacts the PVC particularly strong. In order to evaluate changes of the PVC structure, the finite time Lyapunov exponent (FTLE) is considered. This is a method to visualize Lagrangian coherent structures in fluid...

... Nonintrusive diagnostics Turbulence Unsteady flows Visualization 21 06 2016 24 06 2016 Contributed by the Combustion and Fuels Committee of ASME for publication in the J OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received June 21, 2016; final manuscript...

... the engine operating conditions which invoke this phenomenon. The authors also have developed a visualization method to realize the wide-perspective internal observation of the DPF. The observation experiment has been conducted with a commercial engine and DPF under the revealed conditions. Experimental...

... problem. In order to create a strong flow inside the cylinder, induced swirl and/or tumble flow is purposely introduced into SIDI engines. Research on in-cylinder flow properties was carried out to visualize the effect of intake air swirl and tumble motions on spray and combustion processes [ 2 , 3...

... Visualization Coke oven gas (COG) is one of the byproducts in coke producing process. Disposing COG without an effective recovery and efficient utilization is a serious energy resource waste. Not only being regarded as a potential feedstock for hydrogen separation, methane enrichment, syngas...