Results 61 to 70 of about 28,383 (167)

An Investigation of GDL Porosity on PEM Fuel Cell Performance

Chemical Engineering Transactions, 2014
One of the design parameters of fuel cell is GDL (gas diffusion layer) porosity which helps to remove the water produced and accumulated in the catalyst layers toward the flow channels.
E.E. Kahveci, I. Taymaz
doaj   +1 more source

A flow channel with nafion membrane material design of pem fuel cell

Journal of Thermal Engineering, 2019
This study is about flow channels in the design of the PEM (Proton Exchange Membrane) fuel cell system. In the experimental study, different flow geometry, Nafion membrane, and bipolar plate gas diffusion channel designs are available. In some cases, the
Tolga TANER
doaj   +1 more source

Auto Sizing of CANDU Nuclear Reactor Fuel Channel Flaws from UT Scans. [PDF]

Sensors (Basel), 2023
Hammad I, Poloni M, Isherwood A, Simpson R.   +3 more
europepmc   +1 more source

DEVELOPMENT OF A VARIABLE ORIFICE FOR HNPF FUEL CHANNELS

, 1961
Control of the exit temperature of the coolant from each fuel channel of the Hallam Nuclear Power Facility reactor is obtained by adjusting the coolant flow rate by a remotely operated variable orifice. Two variable orifices were designed and the hydraulic characteristics determined.
Baroczy, C. J., Hagel, J. A., Leonard, W. D.   +2 more
openaire   +3 more sources

Features of liquid fuel burning in a narrow channel

Journal of Physics: Conference Series, 2017
The paper deals with experimental investigations of the surface perturbation effects on the flame propagation velocity along the surface of the liquid. It is revealed that at low velocities the effect is quite significant. Under certain conditions the flame even stabilizes for some time.
V V Zamaschikov, E A Chinnov
openaire   +1 more source

Analysis of Transverse Flow Characteristics in LBE-cooled Wire-wrapped Fuel Assembly

Yuanzineng kexue jishu, 2022
LBE-cooled fast reactor (LBFR) has a promising application prospect in energy generation and transmutation of highlevel radioactive waste. Wirewrapped fuel rods are usually used in LBFR to reach high heat transfer efficiency and selfsupport.
CONG Tenglong;WANG Junjie;XIAO Yao;LIU Maolong;GU Hanyang
doaj  

Approaches to optimization of core reactivity coefficirnts for the “MASTER” heat supply reactor

Nuclear Energy and Technology, 2015
After increasing the power output of heat supply reactor «MASTER» by insertion of the annular channel with coolant, feedback coefficients are deteriorated.
D.M. Titov, S.L. Dorokhovich, Yu.A. Kazansky   +2 more
doaj   +1 more source

Numerical Study on Coolant Flow and Heat Transfer Characteristics in Annular Fuel

Yuanzineng kexue jishu, 2023
Annular fuel element is a new type of fuel element proposed by Massachusetts Institute of Technology. The fuel element structure adopts double channel cooling structure with internal and external cooling simultaneously. Compared with the traditional rod-
ZHOU Yunlong;WU Mingting;HUANG Na;LI Hongwei
doaj  

Development of Fuel Channel Inspection System in PHWR

Journal of the Korean Society for Nondestructive Testing, 2016
A pressurized heavy water reactor (PHWR) designed to refuel in service produces the energy required by nuclear fission. The fuel channel consists of components such as a pressure tube which directly contacts the fuel and is a passage for the reactor coolant, a calandria tube which contacts the moderator and is rolled joint with calandria, and a spacer ...
Sung-Nam Choi, Seung-Ok Yang, Kwang-Il Kim, Hee-Jong Lee   +3 more
openaire   +2 more sources

Ultrasonic Characterization of Hydrides in Nuclear Fuel Channels

e-Journal of Nondestructive Testing
During operation, the pressure tubes in CANDU reactors develop zirconium embedded hydride defects via corrosion through the primary heat transport and their contact with the end fittings, which reduces the ductility of the pressure tube and greatly increases the risk of cracking.
Nathan Gurrin-smith, Raymond L. ten Grotenhuis, Simon Hus   +2 more
openaire   +1 more source