Results 11 to 20 of about 701,963 (354)

Gradient heat flux measurement as monitoring tool for the diesel engine [PDF]

open access: diamondMATEC Web of Conferences, 2018
The usage of gradient heat flux measurement for monitoring of heat flux on combustion chamber surface and optimization of diesel work process is proposed.
Mityakov Vladimir   +3 more
doaj   +2 more sources

Research On Maximizing Critical And Reducing Initial Heat Flux Densities To Eliminate Any Film Boiling And Minimize Distortion During Quenching [PDF]

open access: yes, 2017
In the paper the results of testing three types of FUCHS oils: Thermisol QH 120, Thermisol QH 10 and Thermisol QB 46 are discussed. The main attention is paid to critical heat flux densities evaluation because they create a basis for optimizing cooling ...
Dobryvechir, V. (Volodymyr)   +3 more
core   +2 more sources

Analytical modeling for the heat transfer in sheared flows of nanofluids [PDF]

open access: yes, 2012
We developed a model for the enhancement of the heat flux by spherical and elongated nano- particles in sheared laminar flows of nano-fluids. Besides the heat flux carried by the nanoparticles the model accounts for the contribution of their rotation to ...
Badr Kaoui   +13 more
core   +2 more sources

A Mariotte-based verification system for heat-based sap flow sensors [PDF]

open access: yes, 2012
Determination of the accuracy of commonly used techniques for measuring sap flux density in trees often presents a challenge. We therefore designed and built a verification system for heat-based sap flow sensors typically used at stem level.
De Pauw, DJW, Steppe, Kathy, Teskey, RO
core   +1 more source

Inflation driven by causal heat flux [PDF]

open access: yes, 1997
We find a simple inflationary solution in an inhomogeneous spacetime with heat flux. The heat flux obeys a causal transport equation, and counteracts the inflationary decrease of energy density.
D. Pavòn   +8 more
core   +2 more sources

Assessing electron heat flux dropouts as signatures of magnetic field line disconnection from the Sun [PDF]

open access: yes, 2005
Suprathermal electrons focused along magnetic field lines, called the strahl, carry heat flux away from the Sun. Various factors can cause heat flux dropouts (HFDs), including times when the strahl almost vanishes.
Crooker, NU, Larson, DE, Pagel, C
core   +1 more source

Flow boiling in a 1.1mm tube with R134a: Experimental results and comparison with model [PDF]

open access: yes, 2007
A detailed comparison of the three-zone evaporation model, proposed by Thome et al. (2004), with experimental heat transfer results of two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a fluid was presented by Shiferaw et al ...
Karayiannis, TG   +2 more
core   +1 more source

Thin film resistance sensor for wall heat flux measurement in premixed combustion

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Heat flux measurement method with thin film resistance sensor in a premixed gas combustion field has been studied to develop an accurate heat flux sensor, and to grasp and improve a heat transfer loss of the engine in SIP (Cross-ministerial Strategic ...
Osamu NAKABEPPU   +3 more
doaj   +1 more source

Studies on Heat Flux Imparted on Thermal Insulation Inside Rocket Motor Containing Double Base Propellant

open access: yesJournal of Aerospace Technology and Management, 2019
Thermal insulation inside the rocket motor experience severe pressure and temperature conditions. Experimental determination of heat flux imparted to thermal insulator inside the rocket motor during the static fi ring is a challenging task.
Rakesh Kumar Kalal   +3 more
doaj   +2 more sources

Critical heat flux around strongly heated nanoparticles [PDF]

open access: yesPhysical Review E, 2009
We study heat transfer from a heated nanoparticle into surrounding fluid, using molecular dynamics simulations. We show that the fluid next to the nanoparticle can be heated well above its boiling point without a phase change. Under increasing nanoparticle temperature, the heat flux saturates which is in sharp contrast with the case of flat interfaces,
Merabia, Samy   +4 more
openaire   +3 more sources

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