Abstract
A new technique, where pipes cut at 10o are rejoined
to form an angled dielectric joint, has been used to
measure streaming currents generated in 316 stainless steel pipes.
The effects of water chemistry and strong magnetic fields were
studied. Results suggest a reversal from negative to positive zeta
potential between pH 7 􀀀 10.5 and a negligible effect of magnetic
fields on streaming currents and related wall current. The joint
material and geometry were shown to be highly influential on wall
current magnitude and ongoing research suggests that using a
minimised gap between the pipes (no joining epoxy) may produce
more repeatable results. This study was conducted in support of
primary coolant loop designs for tokamak style nuclear fusion
reactors.
to form an angled dielectric joint, has been used to
measure streaming currents generated in 316 stainless steel pipes.
The effects of water chemistry and strong magnetic fields were
studied. Results suggest a reversal from negative to positive zeta
potential between pH 7 􀀀 10.5 and a negligible effect of magnetic
fields on streaming currents and related wall current. The joint
material and geometry were shown to be highly influential on wall
current magnitude and ongoing research suggests that using a
minimised gap between the pipes (no joining epoxy) may produce
more repeatable results. This study was conducted in support of
primary coolant loop designs for tokamak style nuclear fusion
reactors.
| Original language | English |
|---|---|
| Title of host publication | MACE PGR Conference 2017 |
| Pages | 1-3 |
| Publication status | Published - 1 Apr 2017 |