Results 1 to 10 of about 93,173 (332)
Deposition of graphenic nanomaterials from elevated temperature premixed stagnation flames
Applications in Energy and Combustion Science, 2023 The work examines the unique nanostructure of carbon nanoparticles deposited from sooting premixed flames with flame temperatures exceeding 2200 K.
Shruthi Dasappa, Joaquin Camacho
doaj +2 more sources
Assessment of the Impact of Stagnation Temperatures in Receiver Prototypes of C-PVT Collectors [PDF]
Energies, 2019 Concentrating Photovoltaic Thermal (C-PVT) solar collectors produce both thermal and electric power from the same area while concentrating sunlight. This paper studies a C-PVT design where strings of series-connected solar cells are encapsulated with ...
João Gomes
doaj +3 more sources
Initiation and stagnation of room temperature grain coarsening in cyclically strained gold films [PDF]
, 2019 Despite the large number of experiments demonstrating that grains in a metallic material can grow at room temperature due to applied mechanical load, the mechanisms and the driving forces responsible for mechanically induced grain coarsening are still ...
Олександр Глушко +1 more
openalex +3 more sources
Stagnation temperature effect on the conical shock with application for air
Chinese Journal of Aeronautics, 2018 Abstract The aim of this work is to realize a new numerical program based on the development of a mathematical model allowing determining the parameters of the supersonic flow through a conical shock under hypothesis at high temperature, in the context of correcting the perfect gas model.
Toufik ELAICHI, Toufik Zebbiche
openalex +2 more sources
Thermal Structure of Turbulent Stagnating Opposed Jets with Different Temperature.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1997 Fluctuating temperature has been measured using a laser Rayleigh scattering technique along a centerline of turbulent stagnating opposed jets (cold jet velocity : 2m/s) with different temperatures up to about 400°C. The temperature signals show that the temperature fluctuation is characterized by spike type fluctuations with a sharp increase or ...
Toshihisa Ueda +3 more
openalex +3 more sources
Correlation for Wall-Temperature Oscillations in Unsteady Stagnation Point Convective Heating
International Journal of Heat and Mass TransferThe purpose of this paper is to provide insight into how unsteady ow temperature aects the wall temperature of test articles exposed to convective heating. To this end, a simplied analytical correlation is derived that allows the determination of wall temperature uctuation amplitude in the case of an unsteady freestream.
Tobias Hermann
openalex +2 more sources
Evaluation of the absorber temperature frequency function valid for evacuated flat plate collectors
Energy Reports, 2022 The degradation of performances for solar thermal collectors is linked to the decrease of the absorber efficiency caused by diffusion process, strongly dependent on temperature.
Eliana Gaudino +5 more
doaj +1 more source
Aerospace, 2023 In this paper, aimed at the problem of large temperature gradient thermal testing with the typical sharp wedge leading edge structure of a hypersonic vehicle, a subsonic high-temperature combustion gas heating (SHCH) test device is used to conduct a ...
Ri Wang +5 more
doaj +1 more source
Heat transfer and ablation of carbon/carbon composites based on multi-field coupling
工程科学学报, 2020 With the development of hypersonic technology, the demand for thermal protection material is continuously increasing. Carbon/carbon composites are widely used as thermal protection materials in the nose and in the leading edge of hypersonic vehicles ...
Xue-wen SUN, Hai-bo YANG, Tao MI
doaj +1 more source
Energies, 2021 Stagnation is the transient state of a solar thermal system under high solar irradiation where the useful solar gain is zero. Both flat-plate collectors with selective absorber coatings and vacuum-tube collectors exhibit stagnation temperatures far above
Ralph Eismann +2 more
doaj +1 more source