Results 261 to 270 of about 1,082,311 (314)

Numerical Study of Heat Pipe Heat Spreaders with Large Periodic Heat Input

Journal of Thermophysics and Heat Transfer, 2006
Thestabilityofatransientcomputational analysisofthevaporcorein large flat plateheatpipeheatspreadershas beeninvestigatedusinganexplicittwo-dimensional finitedifferenceprocedure.Thecalculationprocedureemployed a highly underrelaxed scheme to suppress instabilities arising from the transient computation of a series of interdependent, nonlinear equations ...
Gerardo Carbajal, C. B. Sobhan, G. P. Peterson   +2 more
openaire   +1 more source

The thermal performance of heat pipes with localized heat input

International Journal of Heat and Mass Transfer, 1989
The performance of heat pipes with localized heat input including the effects of axial and circumferential heat conduction under high and low working temperatures is investigated. The numerical results show that when heat pipes are spot heated, the peak temperature of the wall is greatly reduced and the surface can be protected from being burned out by
Yiding Cao, Amir Faghri, E.T. Mahefkey
openaire   +1 more source

Transient Analysis of Nonuniform Heat Input Propagation Through a Heat Sink Base

Journal of Electronic Packaging, 2016
For thermal management architectures wherein the heat sink is embedded close to a dynamic heat source, nonuniformities may propagate through the heat sink base to the coolant. Available transient models predict the effective heat spreading resistance to calculate chip temperature rise, or simplify to a representative axisymmetric geometry.
Srivathsan Sudhakar, Justin A. Weibel
openaire   +1 more source

Impact of Heat Input on Mechanical Properties

Indian Welding Journal, 2017
The mechanical properties of a welded joint significantly depend on the cooling rate of the joint, and this in turn is influenced by the heat input (welding energy), plate thickness and working temperature (interpass temperature). The most significant microstructure changes from the viewpoint of the properties of the weld metal and the heat-affected ...
Juha Lukkari, Olli Vahakainu
openaire   +1 more source

Study of Weldability for Circularly Input Heat

Materials Science Forum, 2008
Different techniques are being studied to make the automotive electrical parts more compact and lightweight; along with improving their functionality for saving energy and protecting the environment. In the wake of this trend, the joints in these parts are required to have little distortion and a high degree of accuracy.
Hideaki Shirai, Shigetaka Okano, Masahito Mochizuki, Masao Toyoda   +3 more
openaire   +1 more source

Comments on "The Heating of Slabs With Arbitrary Heat Inputs"

Journal of the Aerospace Sciences, 1959
^|=0.II9 AT M^oo more closely with the experiment than those of Li and Geiger. This is expected since the effect of curvature is included in the present solution, as was also pointed out by Li and Geiger. The pressure coefficient at r = a has also been computed vs. 6.
openaire   +2 more sources

Heat Transfer Studies in Coiled Agitated Vessel with Varying Heat Input

International Journal of Food Engineering, 2011
Heat transfer studies in a coiled agitated vessel with varying heat input is presented using two agitators namely propeller and disk turbine. Heat transfer rate increases with agitator speed for both the agitators for a given heat input. The heat transfer coefficient also increases with heat input for a given agitator speed for turbine agitator for all
V T Perarasu, M Arivazhagan, P Sivashanmugam   +2 more
openaire   +1 more source

Performance of a dehumidifying compression heat pump with auxiliary heat input

Heat Recovery Systems and CHP, 1992
Abstract Experiments are carried out on a R114 dehumidifying heat pump installed in a closed circuit drying tunnel. The influence of auxiliary heat input before condenser and/or evaporator are studied. Actual coefficient of performance varied from about 2 to 3. Studies throw light on the significance of the location of the auxiliary heat input in the
A.M.K. Poduval, S. Srinivasa Murthy
openaire   +1 more source

Comparing anthropogenic heat input and heat accumulation in the subsurface of Osaka, Japan

Science of The Total Environment, 2018
In metropolitan areas, shallow groundwater temperatures are affected by anthropogenic heat sources. The resulting thermal conditions in the subsurface are highly site-specific, and spatial and temporal trends have only been revealed for a few cities.
Susanne A. Benz, Peter Bayer, Philipp Blum, Hideki Hamamoto, Hirotaka Arimoto, Makoto Taniguchi   +5 more
openaire   +3 more sources