The method of installing the magnetic materials inside a
standard scroll expander is a key step to complete the
innovation of the magnetic scroll expander. After the
magnetic material segment installation, the original
operation to the moving parts inside the scroll expander
should not be affected. One solution is to use the scroll
spiral fully made by magnetic materials to replace the
original two metal scroll spirals. The used magnetic
materials must have enough strength to be able to work
within the high pressure environment. Other possible
approaches to install the magnetic materials inside the scroll
expander are under the exploration. To the simulation study
and the prototype design, the geometry of the fixed and
moving scroll magnets and their magnetization direction are
corresponding to the structure of the industrial scroll type
air compressor (Model: TRS090, SANDEN Corporation)
which was transformed to the typical scroll expander (the
detail of how to modify a scroll type air compressor to an
expander refers to