Fan
Assembly - Apart from optimally designed impellers,
an axial flow fan also comprises other critical components
such as fan hub, support plates, fasteners, bushes for fixing
the drive shaft etc. The FRP fan blades and the hub are
assembled together & are again subjected to static &
dynamic balance test and inspected at various stages as
per the quality assurance plan. FRP fans provide substantial
energy savings as compared to conventional aluminum and
MS fans thereby reducing initial equipment & operational
cost.
The project on development of FRP Axial Flow Fans was launched
in September 1998. All the development activities encompassing
designing the fans, selection of raw materials, stabilizing
fabrication procedure & finally performance testing
of four fans were completed by December 1999. The fifth
fan for radiator cooling application for diesel locomotives
for Indian railways was successfully performance tested
in January 2000.
Apart from optimally designed impellers, an axial flow fan
also comprises other critical components such as fan hub,
support plates, fasteners, bushes for fixing the drive shaft
etc. The FRP fan blades and the hub are assembled together
& are again subjected to static & dynamic balance
test and inspected at various stages as per the quality
assurance plan. FRP fans provide substantial energy savings
as compared to conventional aluminum and MS fans thereby
reducing initial equipment & operational cost.
All the development activities encompassing designing the
fans, selection of raw materials, stabilizing fabrication
procedure & finally performance testing of four fans
were completed by December 1999.
Five fans as mentioned above have been developed successfully
under the project. The performance evaluation of all the
five types of fans established an efficiency differential
of around 25% over conventional fans with aluminum impellers.
The air heat exchanger fan, fabricated by Resin Transfer
Moulding (RTM) technique, tested at the refinery of Indian
Oil Corporation (IOC) Ltd., Panipat with over 30% energy
saving as compared to existing fans imported from overseas
suppliers. RDSO fan has also been fabricated by RTM and
tested as per ANSI/AMCA with improved performance.
|