Results 31 to 40 of about 8,613 (260)

Effect of tube heat conduction on the single branch pulsating heat pipe start-up [PDF]

open access: yes, 2016
International audienceThe oscillation inception in the single-branch pulsating heat pipe (PHP, called also oscillating heat pipe)has been studied in the presence of the heat conduction along the PHP tube, with the imposed both evaporatorheat power and ...
Nikolayev, Vadim
core   +2 more sources

Squid‐like soft heat pipe for multiple heat transport

open access: yesDroplet, 2022
Soft heat pipes are vital in many applications. Inspired by the structure of a squid, we proposed a squid‐like soft heat pipe with multiple heat transport branches that has excellent flexibility and outstanding thermal performance.
Zhanxiao Kang   +3 more
doaj   +1 more source

Catalyst warm-up to light-off by pulsating engine exhaust: two-dimensional studies [PDF]

open access: yes, 2004
This paper presents the results of two-dimensional studies on a range of different catalyst substrates warmed by exhaust from a four-cylinder gasoline engine. Engine speeds investigated were 2000 and 3000 r/min, corresponding to frequencies of 67 and 100
Benjamin, Stephen F., Roberts, Carol A.
core   +1 more source

Periodically driven Taylor-Couette turbulence

open access: yes, 2018
We study periodically driven Taylor-Couette turbulence, i.e. the flow confined between two concentric, independently rotating cylinders. Here, the inner cylinder is driven sinusoidally while the outer cylinder is kept at rest (time-averaged Reynolds ...
Huisman, Sander G.   +4 more
core   +1 more source

Laminar heat transfer enhancement downstream of a backward facing step by using a pulsating flow [PDF]

open access: yes, 2008
This study is motivated by the need to devise means to enhance heat transfer in configurations, like the back step, that appear in certain types of MEMS that involve fluid flow and that are not very efficient from the thermal transfer point of view.
A. Velazquez   +41 more
core   +2 more sources

PULSATING HEAT PIPE IN HYPERGRAVITY CONDITIONS

open access: yesHeat Pipe Science and Technology, An International Journal, 2015
A closed-loop pulsating heat pipe made of a copper tube (1.1 mm/2 mm I.D./O.D.) and filled with FC-72 has been tested in a large-diameter centrifuge (LDC) of the European Space Agency in Noordwijk at different hypergravity levels up to 20 g, different heat input levels, and different orientations with respect to the gravity direction (vertical bottom ...
MAMELI, MAURO   +4 more
openaire   +3 more sources

Pulsating Heat Pipes: Basics of Functioning and Modeling [PDF]

open access: yes, 2018
For cooling of electronic or electric equipment, there is a growing industrial demand of high-performance thermal links. One such thermal device is the recently invented pulsating (called also oscillating) heat pipe (PHP). It consists of a closed capillary tube folded into meander and partially filled with a liquid.
Nikolayev, Vadim, Marengo, Marco
openaire   +2 more sources

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán   +13 more
wiley   +1 more source

Effect of working fluid in heat transport characteristics of pulsating heat pipe

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Recently, electronics thermal management faces problems in the wake of component miniaturization, which has led to higher demands on heat flux dissipation.
Koji FUMOTO   +3 more
doaj   +1 more source

FMECA and FTA analysis applied to the manufacturing process of pulsating heat pipes

open access: yesHeritage and Sustainable Development, 2023
Pulsating heat pipes (PHPs) offer significant advantages for the thermal control of electronic components due to their simple manufacturing and high heat transfer rates.
Pamela Hulse   +4 more
doaj   +1 more source

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