scholarly journals Resistively Heated Target Tests Using Helium Flow Loop

2018 ◽  
Author(s):  
Alexander Joseph Wass ◽  
Keith Albert Woloshun ◽  
Gregory E. Dale ◽  
Dale Allen Dalmas ◽  
Frank Patrick Romero ◽  
...  
Keyword(s):  
Flow Loop ◽  
Helium Flow ◽  
Resistively Heated

A pumped supercritical helium flow loop for heat transfer studies

Cryogenics ◽  
1976 ◽  
Vol 16 (8) ◽  
pp. 465-468 ◽  
Author(s):  
D.N.H. Cairns ◽  
D.J. Brassington
Keyword(s):  
Heat Transfer ◽  
Flow Loop ◽  
Helium Flow ◽  
Supercritical Helium

CFD Simulation of Helium Flow Loop Test Section

2021 ◽  
pp. 1-11
Author(s):  
Monica Gehrig ◽  
Joshua Schlegel ◽  
Dennis Youchison ◽  
Arnold Lumsdaine ◽  
Charles Kessel ◽  
...  
Keyword(s):  
Test Section ◽  
Cfd Simulation ◽  
Flow Loop ◽  
Helium Flow

A novel predictive method for filler coflocculation with cellulose microfibrils

TAPPI Journal ◽  
2019 ◽  
Vol 18 (11) ◽  
pp. 653-664
Author(s):  
IGNACIO DE SAN PIO ◽  
KLAS G. JOHANSSON ◽  
PAUL KROCHAK
Keyword(s):  
Negative Impact ◽  
High Strength ◽  
Strength Properties ◽  
Cellulose Microfibrils ◽  
Paper Strength ◽  
Flow Loop ◽  
Cationic Starch ◽  
Reflectance Measurement ◽  
Drainage Rate ◽  
Complete Study

Different strategies aimed at reducing the negative impact of fillers on paper strength have been the objective of many studies during the past few decades. Some new strategies have even been patented or commercialized, yet a complete study on the behavior of the filler flocs and their effect on retention, drainage, and formation has not been found in literature. This type of research on fillers is often limited by difficulties in simulating high levels of shear at laboratory scale similar to those at mill scale. To address this challenge, a combination of techniques was used to compare preflocculation (i.e., filler is flocculated before addition to the pulp) with coflocculation strategies (i.e., filler is mixed with a binder and flocculated before addition to the pulp). The effect on filler and fiber flocs size was studied in a pilot flow loop using focal beam reflectance measurement (FBRM) and image analysis. Flocs obtained with cationic polyacrylamide (CPAM) and bentonite were shown to have similar shear resistance with both strategies, whereas cationic starch (CS) was clearly more advantageous when coflocculation strategy was used. The effect of flocculation strategy on drainage rate, STFI formation, ash retention, and standard strength properties was measured. Coflocculation of filler with CPAM plus bentonite or CS showed promising results and produced sheets with high strength but had a negative impact on wire dewatering, opening a door for further optimization.

Natural Convection Boiling Potassium Flow Loop

1994 ◽  
Author(s):  
Alexander L. Shimkevich ◽  
Michael N. Ivanovsky ◽  
Valentine A. Morozov ◽  
Kenneth M. Sprouse ◽  
Mohamed S. El-Genk ◽  
...  
Keyword(s):  
Natural Convection ◽  
Flow Loop

Experimental study of the helium flow characteristics in pebble-bed under the condition of CFETR's blanket module

2017 ◽  
Vol 100 ◽  
pp. 283-291 ◽  
Author(s):  
Mingjun Wang ◽  
Di Liu ◽  
Yan Xiang ◽  
Shijie Cui ◽  
G.H. Su ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flow Characteristics ◽  
Helium Flow ◽  
Pebble Bed
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