- ページ 7

ポータブル発電機 Asian Phoenix Resources PowerPal MHG-500HHのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Asian Phoenix Resources PowerPal MHG-500HH 18 ページ。 High head micro-hydroelectric generator

When installing the penstock, try to keep it as straight as possible and avoid sharp turns
or angles. To do this, part of the hillslope may need excavating while in other places the
penstock may need supporting with poles etc. Steeper terrain has advantages over more
gentle terrain as cost is reduced by the use of a shorter penstock.
The forebay, or water holding tank at the top of the penstock can be as simple as a deep
part of a flowing stream or power conduit. It is a good idea to give some permanence to
this structure so that a constant water source is available and so the top of the penstock is
always submerged. A small dam is the best method and need only be 1 meter high. The
top of the penstock is typically placed not at the bottom but some way up the dam wall so
that the bottom of the dam acts as a sink for rotting leaf litter, deposited sand and mud
etc. This sink may need periodic cleaning out. Another good idea is to cover the end of
the penstock with a piece of wire mesh (debris screen) to keep leaves etc. from flowing in
and clogging the turbine. See Appendix A for the ideal forebay design.
The penstock is shown by the black line A-
B. In the first diagram (A) the penstock
follows the stream. This may lead to
unnecessary length and cost. In diagram B,
the most direct route is selected to reduce
length and cost. Diagram C shows the best
alternative where a side channel or 'power
conduit' is cut into the side of the hill. This
carries the water to a point as close to
above the turbine as possible and best
reduces the length of penstock required.
The power conduit roughly follows the
hill's contour and need only be a simple
ditch say 30cm x 30cm in section.
PowerPal™ High Head
7