Results 11 to 20 of about 6,306,504 (351)

A review of strategies for the control of high temperature stagnation in solar collectors and systems

open access: goldEnergy Procedia, 2012
AbstractHigh temperatures occurring during stagnation conditions can be very detrimental to the reliability, durability and safety of solar thermal systems. Various approaches to mitigate the effects to stagnation have been employed in the past, however as collector and system efficiencies improve, and larger solar systems are installed, the need for ...
Stephen J. Harrison   +1 more
openaire   +3 more sources

Deposition of graphenic nanomaterials from elevated temperature premixed stagnation flames

open access: goldApplications 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

Stagnation temperature measurement using thin-film platinum resistance sensors [PDF]

open access: green, 2013
The measurement of stagnation temperature in high-speed flows is an important aspect of gas turbine engine testing. The ongoing requirement to improve the accuracy of such measurements has led to the development of probe systems that use a thin-film ...
C Bonham   +3 more
openalex   +2 more sources

Stagnation temperature effect on the conical shock with application for air

open access: hybridChinese 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 Zebbiche, Toufik Elaichi
openaire   +3 more sources

Correlation for Wall-Temperature Oscillations in Unsteady Stagnation Point Convective Heating

open access: hybridInternational Journal of Heat and Mass Transfer
The 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
openaire   +2 more sources

Flat Plate Aluminum Heat Pipe Collector with Inherently Limited Stagnation Temperature

open access: gold, 2014
Steffen Jack   +4 more
openalex   +2 more sources

Thermal Structure of Turbulent Stagnating Opposed Jets with Different Temperature.

open access: bronzeTRANSACTIONS 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 ...
Hidenori Yoshimura   +3 more
openaire   +4 more sources

Evaluation of the absorber temperature frequency function valid for evacuated flat plate collectors

open access: yesEnergy 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

Study on Ground Experimental Method of Stagnation Point Large Heat Flux of Typical Sharp Wedge Leading Edge Structure

open access: yesAerospace, 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

Home - About - Disclaimer - Privacy