Results 81 to 90 of about 179,550 (294)

Heat exchanger and method of making [PDF]

open access: yes, 1978
A heat exchanger of increased effectiveness is disclosed. A porous metal matrix is disposed in a metal chamber or between walls through which a heat-transfer fluid is directed.
Fortini, A., Kazaroff, J. M.
core   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao   +3 more
wiley   +1 more source

High effectiveness contour matching contact heat exchanger [PDF]

open access: yes, 1988
There is a need in the art for a heat exchanger design having a flexible core providing contour matching capabilities, which compensates for manufacturing tolerance and distortion buildups, and which accordingly furnishes a relatively uniform thermal ...
Blakely, Robert L.   +2 more
core   +1 more source

A derivative method for minimising total cost in heat exchanger networks through optimal area allocation [PDF]

open access: yes, 2013
This paper presents a novel Cost Derivative Method (CDM) for finding the optimal area allocation for a defined Heat Exchanger Network (HEN) structure and stream data, without any stream splits to achieve minimum total cost. Using the Pinch Design Method (
Atkins, Martin John   +4 more
core   +1 more source

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

open access: yesAdvanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi   +2 more
wiley   +1 more source

Conduction investigations into the magnetic properties of matter [PDF]

open access: yes
The thermal analysis of a heat exchanger for heating air to temperatures on the order of 3000 C for use in NASA's high temperature wind tunnel is presented.
Ash, R. L., Chagini, H.
core   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Cooling Performance of Air Conditioning Systems with Non-contact Thermal Resistance Aluminum Heat Exchanger

open access: yesZhileng xuebao, 2014
In order to replace the traditional heat exchanger of room air conditioner, a new non-contact thermal resistance aluminum heat exchanger was designed. Enthalpy method is then used to compare the cooling performance between new heat exchanger and tube-fin
Rong Jun   +4 more
doaj  

Research of characteristics slot-hole heat exchanger with the developed surface of heat exchange [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2010
Thermal characteristics of multichannel slot-hole heat exchanger with the developed surface of heat exchange inside the opened-cycle water cooling system are experimentally investigated.
Malkin E. C.   +3 more
doaj  

Spiraled channels improve heat transfer between fluids [PDF]

open access: yes, 1965
Spiral flow channels increase heat transfer between two fluids in a countercurrent heat exchanger of given volume. The heat exchanger is constructed by connecting a spiraled bellows-shaped ducting between two concentric cylindrical ...
Higa, W., Wiebe, E. R.
core   +1 more source

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