Asian Phoenix Resources PowerPal MHG-200HH 사용 및 관리 지침 매뉴얼 - 페이지 16
{카테고리_이름} Asian Phoenix Resources PowerPal MHG-200HH에 대한 사용 및 관리 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Asian Phoenix Resources PowerPal MHG-200HH 18 페이지. High head micro-hydroelectric generator
페이지 인쇄Also, the diagrams and much useful information on pages 7 and 15 are taken from Micro-
hydropower Sourcebook – A Practical Guide to Design and Implementation in
Developing Countries. NRECA, 1986.
Special thanks go to David Willcox of the UK for his invaluable input and suggestions.
APPENDIX A – FOREBAY DESIGN
The instructions given on page 7 of this manual to design the forebay are adequate for
most cases. The most important aspects of forebay design are:
1) To allow a continual flow of water to the penstock so that the turbine keeps
functioning.
2) To have sufficient safeguards to prevent sand, vegetation and other debris from
entering the penstock which could cause blockages and disrupt the turbine. This
includes a safety aspect to keep away children and animals that could possibly be
injured by the suction of water entering the penstock.
3) To have an easy way to stop the water flow when changing the bearings etc.
The following diagram shows a simple forebay design that may be used to achieve all the
above goals.
Here, the forebay is made of a
waterproofed box situated between
the power canal (power conduit) and
the penstock. A loosely fitting PVC
elbow is inserted between the
penstock inlet and the main penstock
pipe. Flow to the penstock is cut off
by pulling the cord so that the inlet is
out of the water. The plugged drain is
used to periodically empty out sand
and leaves or else this can be
shoveled out. The perforated pipe end
further reduces litter intake. Here the
number and size of holes are
important so that flow is not
obstructed. For 110mm PVC pipe
there should be 110 drilled holes of
12mm diameter. The box need only
be say 40cm x 40cm x 40cm and may
be locked to keep away children etc.
PowerPal™ High Head
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