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... here you can see a selection of our completed projects ...




Búrfell / Iceland
Installation Penstock and Gates


Project:              KW Búrfell / IS

Plant owner:     Landsvirkjun / IS
Client :                DSD Noell GmbH / GER


Installation of Penstock and individual components:


•       Transition                               length 7.5 m            ■ i 5.2 --> Ø5.2m           

•       Vertical Shaft                          length 101.0 m

•       Lower Bend                           length  20.5 m

•       Horizontal Shaft                     length  40.0 m


Total weight:                                  approx. 550 t

Inner diameter:                             5.20 m

Thickness:                                     24mm – 45 mm

Material:                                         S 355 ML, S 500 ML

 
Installation period:                       2017


Installation of Gates:


•       Intake trashrack frames and guides                        

•       Intake bulkhead frames and guides

•       Intake wheel gate

•       Draft tube gates



Installation period:                       2017 / 2018



Búrfell / Iceland
Turbine - pre installation



Project:              KW Búrfell / IS

Plant owner:     Landsvirkjun / IS
Client :                Andritz Hydro GmbH Ravensburg / GER



Scope of work:


•       Spiral Case                           40.2 t      

•       Stay Ring                               32.5 t

•       Draft Tube                             41.5 t

•       incl. necessary  piping work (e.g. Cooling- & dewatering pipes)

 
Installation period:                       2017



Oberwald / Switzerland
Supply and Installation of Steel Lining plus Special Parts


Project:               KW Rhone Oberwald / CH
Plant owner:      FMV SA / CH
Client:                  Strabag AG / CH


Scope of work:


•      Penstock section                    length 30 m; slope 7.5°


•      Manifold lining                         length 15.5 m; slope 10.9° / 15.2°


•      2 pieces distributor units


•      1 piece coupling unit             from steel to glass reinforced pipe

   


Total weight:                                 approx. 50.0 t


Inner diameter:                            1.00 m ; 2.60 m


Thickness:                                    10 mm - 35 mm


Material:                                        S 355 J2 / S 690 QL



Installation period:                      construction phase 1: December 2016

                                                         construction phase 2: March- July 2017



Le Seujet / Switzerland
Revision Work


Project:                Gear Podestal Installation

Plant owner:        SIG Genève / CH

Client:                  Andritz Hydro Kriens / CH


Project Scope:

A gear podestal for a pipe turbine had to be installed in a exact position and also welded in the necessary position. After the installation just 2mm milling work was allowed to reach the essential evenness for the axial alignment of the gear box.

The first gear box inclusive podestal was operating for more than 20 years and this components must be replaced or modified.

Furthermore, some accessory parts at the Pit-Liner were installed, welded and NDT-tested.  .

Welding procedure:                     MAG 136 (FCAW)

Wall thickness:                             30 mm – 50 mm

Material:                                          S 355 JR

Implementation period:
               November - December 2016

The work was performed in total customer satisfaction, all essential quality criteria were fulfilled and the hand over took place two days in advance. 







Handeck II / Switzerland
Installation of steel lining / Parallel shaft to the existing power shaft


Project:                 KW Handeck II / CH

Plant owner:         Kraftwerke Oberhasli AG - KWO / CH
Client:                   DSD Noell GmbH / GER


Installation of steel linings:

       Inclined shaft      length 340 m, inclination angle 5

       Inclined shaft      length 420 m, inclination angle  8.4°

       Connection of new built with existing penstock

       2 pieces T-distirbutor

       1 piece Bifurcator


Total weight:                              
1,200 tons

Inner diameter:                           2.40 m

Wall thickness:                          16 mm – 24 mm

Material:                                        S 460 ML

Installation period:                     February 2014 – September 2015









Handeck II / Switzerland
Turbine Pre-erection


Project:                 KW Handeck II / CH

Plant owner:         Kraftwerke Oberhasli AG - KWO / CH
Client:                   Andritz Hydro AG Kriens / CH


Pre-erection of turbine casing, ring main (circular manifold), generator support and auxiliaries


Total weight:                               135 to

Wall thickness:                          20 – 80 mm

Turbine power output:              90 MW, Pelton

Head:                                             456.80 m

Installation period:                     2014




Innertkirchen I / Switzerland
Installation of steel lining / Parallel shaft to the existing power shaft

 

Project:                 KW Innertkirchen  / CH

Plant owner:         Kraftwerke Oberhasli AG - KWO / CH
Client:                   DSD Noell GmbH / GER


Installation of steel linings:

       Inclined shaft, length 1100 m, inclination angle 35°

       Inclined shaft,  length 990 m, inclination angle 5.4°

       Connection of new built with the existing penstock

       2 pieces T-distributor

       1 piece Bifurcator


Total weight:                               3,100 tons

Inner diameter:                           2.40 m

Wall thickness:                          15 mm – 31 mm

Material:                                       S 460 ML, S690 QL

Installation period:                    January 2013 – January 2015







Innertkirchen I / Switzerland
Turbine Pre-erection


Project:                 Parallel Shaft Kapf - KW Innertkirchen

Plant owner:         Kraftwerke Oberhasli AG - KWO / CH
Client:                   Andritz Hydro AG Kriens / CH


Pre-erection of turbine casing, ring main (circular manifold), generator Support and auxilliaries


Total weight:                                  171 t

Wall thickness:                             35 – 80 mm

Turbine power output:                 150 MW, Pelton

Head:                                                664.60 m

Installation period:                        2014


Kaunertal / Austria
Penstock driving system


Project:                KW Kaunertal / Austria

Plant owner:        TIWAG - Tiroler Wasserkraftwerke AG / AUT

Client:                  TIWAG - Tiroler Wasserkraftwerke AG / AUT


Key figures of the penstock: 

  • Diameter:                   3.3m
  • Length:                       970m
  • Inclination:                 37% / 18.8°

Executed works:

  • Engineering of inspection access equipment with consideration of local conditions (access into the shaft, space conditions for placement of the winch)

  • Fabrication, delivery and installation including testing and operation of the inspection access equipment

  • Preparation works (grinding) for nondestructive testing of the weld seams

  • Coordination of site activities and giving instructions according HSE-Regulations to other contractors working into the shaft.

Execution period:  2012



Hinterrhein / Switzerland
Repair of Butterfly-Valve

Project:                      Repair of a Butterfly-Valve Sils / Thusis / CH

Plant owner:              Kraftwerke Hinterrhein AG / CH

Client:                        Kraftwerke Hinterrhein AG / CH

Key figures of the penstock:

       Disc diameter:   4000 mm

       Material:        Casted steel with 450 MPa tensile strength

Initial condition

On the disc of the butterfly-valve a crack of about 1 m length, through the entire wall with a thickness of 60 mm was detected.

Challenge

Repair of the disc within the shortest possible periode, in order to get the butterfly- valve in a permanent safe operating condition.

 

The Butterfly-Valve has been repaired within two weeks successfully.



Vianden / Luxemburg
Site Management / Staff Provision

Project:                     Extension PSW Vianden / LUX

Plant owner:             Société Électrique de l´Our SA, LUX

Client:                       DSD Noell GmbH / GER

Project work:

  • Site Management and allocation of installation-experts for the construction of the  penstock (approx. 2.100 tons)

  • Site Management for installation of hydro-mechanical equipment

Execution period:   March 2011 - Nov. 2013

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