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Showing posts with label Francis. Show all posts
Showing posts with label Francis. Show all posts

Saturday, May 29, 2010

Advantage of Horizontal Machines

Advantage in Design:
  • Simple in Design (Standardized size available)
  • Hydraulic path is simpler (No distributor for tubular)
  • No Complicated parts
  • Even distribution of load on foundation (as turbine load come at different place and generator load at different place etc.,)
Advantage in Efficiency:
  • Better efficiency for lesser MW project (as flow is straight and Hydraulic passage is of lesser restriction to flow.

Advantage in Layout:
  • Simpler Layout (all auxiliary equipment can be placed in one floor and close to main generating equipment - Better coordination by operator)
  • Entire equipment is directly under crane hook making approach very easy for erection, maintenance - Reduce down time during maintenance.

Advantage in Supply:
  • As design is simpler and standardized, quicker delivery period.
  • All equipment can be supplied in 6 to 12 months.
  • Saving in delivery period of the order of about 6 months

Advantage in Erection:
  • Erection time is less (as equipment distributed on one floor)
  • Machine (turbine as well as generator) can be fully assembled in shop / service bay and lowered to foundations.
  • Results in shorter erection & commissioning time (3 to 6 months)

Advantage in Operation:
  • Easier control and vigil (operator sitting in control room can see all the equipments and can take preventive shutdown, if required)
  • No skilled personnel are required. As no complex parts are involved thus, easy to understand the parts and system.

Advantage in Maintenance:
  • Simple design; hence availability of spares is easy.
  • Easy Maintenance; All equipment are exposed in Horizontal formation thus can be maintained independently like turbine & Generator independently.
  • Also the Turbine is exposed (not fully buried in concrete) thus inspection, repair, maintenance etc., is easier.

                                                             Horr. Francis Arrangement

Monday, March 22, 2010

Horizontal Vs Vertical Turbine

Advantage of Horizontal Machines

Advantage in Design:
-Simple in Design (Standardized size available)
-Hydraulic path is simpler (No distributor for tubular)
-No Complicated parts
-Even distribution of load on foundation (as turbine load come at different place and generator load at different place etc.,)

Advantage in Efficiency:
-Better efficiency for lesser MW project (as flow is straight and Hydraulic  passage is of lesser restriction to flow) 

Advantage in Layout:

-Simpler Layout (all auxiliary equipment can be placed in one floor and close to main generating equipment - Better coordination by operator)

-Entire equipment is directly under crane hook making approach very easy for erection, maintenance Reduce down time during maintenance.

Advantage in Supply:

-As design is simpler and standardized, quicker delivery period.

-All equipment can be supplied in 6 to 12 months.

-Saving in delivery period of the order of about 6 months

Advantage in Erection:
-Erection time is less (as equipment distributed on one floor)
-Machine (turbine as well as generator) can be fully assembled in shop / service bay and lowered to foundations.
-Results in shorter erection & commissioning time (3 to 6 months)

Advantage in Operation:
-Easier control and vigil (operator sitting in control room can see all the equipments and can take preventive shutdown, if required)

-No skilled personnel are required. As no complex parts are involved thus, easy to understand the parts and system


Advantage in Maintenance:
-Simple design; hence availability of spares is easy.
-Easy Maintenance; All equipment are exposed in Horizontal formation thus can be maintained independently like turbine & Generator independently.
-Also the Turbine is exposed (not fully buried in concrete) thus inspection, repair, maintenance etc., is easier.


Horizontal Francis Turbine