Parameters Affecting Selection of Dredge Equipment

Size: px

Start display at page:

Download "Parameters Affecting Selection of Dredge Equipment"

Reginald Dennis
6 years ago
Views:

1 Parameters Affecting Selection of Dredge Equipment EADA RAKESH ROY COO, Naval Architect VEDAM DESIGN & TECHNICAL CONSULTANCY PVT. LTD , Acropolis, Military Road, Marol, Andheri (E), Mumbai-59, INDIA , vedam@vedamindia.com,

2 OUTLINE VEDAM Background Parameters for Dredger Selection Effect of parameters on Design Versatality of dredgers CSD Series - CombiSnijder

INTRODUCTION An ISO 9001-2015 certified. Offices in India UAE Netherlands.

3 INTRODUCTION An ISO certified. Offices in India UAE Netherlands. Experienced Team of 80 Professionals (Naval Architects, Marine & Electrical Engineers, Mechanical & Structural Engineers) 650+ Projects in around 30 Countries.

4 VEDAM S SERVICES Conversion Designs Engineering & Analysis Production Designs Concept & Basic Designs Naval Architectural Calculations Project Management Site Supervision

5 Concept Basic Engg Equip Intg. Retrofit Site Supervision Project mngt Track Record in Dredging Project Shipyard Location Scope 20inch Cutter Suction Dredger, 16m depth India O O O 18inch Cutter Suction Dredger, 14m depth India O O 20inch Cutter Suction Dredger, 20m depth India O 14inch Self Propelled CSD, 6m depth India O 2400CBM TSHD Europe O Upgradation of 7000CBM TSHDs x 4 India O Upgradation & Flag change of 2500 CBM TSHD India O Conversion of General Cargo to TSHD Europe O 90CBM Shallow Draft TSHD Middle East O

6 20inch Cutter Suction Dredger PRINCIPAL PARTICULARS DREDGE FEATURES Power : 180kw DREDGE FEATURES ENGINE Power INSTALLATION : 180kw DECK MACHINERY

7 18inch Cutter Suction Dredger

8 Few decades ago.. Choices were few, selection was simple!!

9 A decade after.. Few brands, few segments. Selection involved only basic car specs!! Price Utility Mileage or Fuel Efficiency Max Speed

Last decade.. Many options for a given budget and utility.

Multiple Brands Techno-commercial evaluation Advance

Engine Power / Torque Acceleration / Deceleration rates

10 Last decade.. Many options for a given budget and utility. Selection is a complex process of evaluation! Multiple Brands Techno-commercial evaluation Advance technical Specifications Engine CC Multiple Segments Engine Power / Torque Acceleration / Deceleration rates Gadgets & safety features Maintenance cost. Price Multiple Models within a segment

11 Present scenario.. Customer wants more in a single investment.. Brands offer VERSATILITY!! Cross-overs, Fusion models (Sedan+SUV, MUV+SUV) Multiple drive modes (Eco, Terrain, City, Desert, Snow..)

12 Dredger Selection CAPEX Dredging Depth Discharge pipe dia or Pump Capacity OPEX (efficiency, maintenance) Production diff. dredge material, pipe length Operational Profile (Capital or maintenance) Mobility Versatility

13 Importance of Production Curve Why production curve? Individual max. values may misrepresent the actual performance Actual parameters for dredging can be different Production curve gives fair idea of expected production at duty point Production Curve reflects effect of combination of Excavation capacity Acquisition efficiency Transportation range

14 Excavation Cutter Performance & Characteristic Suction Pipe Selection Net Positive Suction Head (NPSH)

15 Cutter Performance & Characteristics Determines the production Depends on cutter diameter, RPM and type and number of blades Hard Rock Soft rock Cemented Sand Sand & Loose Soils Clay

16 Suction Pipe Selection Range of solid material particle size Decides efficient excavation system

17 Net Positive Suction Head (NPSH) Type of pump (Deck mounted / Surface Mounted / Submerged) Higher NPSH results in cavitation thereby loss in efficiency

18 Head (m) Transportation Range System Curves for different discharge lengths Discharge Height Discharge Distance (range) Production (cu.m)

19 Acquisition efficiency Pump Curve or Characteristic Engine G/B matching

20 Best Efficiency Point

21 Duty Point

22 Pump Characteristic

23 Power in kw Engine & Pump performance curve Engine supply power Pump Demand Power for different discharge lengths 100% MCR RPM

24 Selection Process of Pump

25 P-L Drawing Data Insufficient

26 Versatility of Dredger Range of application other than design point Modularization & ease of upgradation Auxiliary equipment Booster Pump, spud carrier, Spud tilting, 3 & 5-point anchoring system, Side offloading arm Anchor Booms Self-propulsion

27 Versatility

28 Versatility

29 Versatility Pump in Series When head is too High Can be used when larger discharge length is required Barge Offload In case of very large distance disposal

30 CombiSnijder - Series Model No. 250-SE 250-SM 250-DM 350-SM 350-DM Main Particulars Length Pontoon, m Breadth, m Depth, m Draught, m Dredging Features Dredging Depth, m Dredge Pump, kw Mixture Capacity, m 3 /hr (SG-1.24) Production Capacity-Coarse Sand, m 3 /hr Pipeline Length, m Discharge pipe Diameter, mm Cutter Features Cutter Power, kw Cutter Diameter, mm RPM Engine Main Engine, kw Auxiliary, kw NA NA NA NA NA

CombiSnijder - Series Highlights: Cost Effective Simplistic design for specific application Usage of local equipment as far as practical Modular design

31 CombiSnijder - Series Highlights: Cost Effective Simplistic design for specific application Usage of local equipment as far as practical Modular design Upgrades: Increment/Decrement in dredge depth Side discharge arm 3 & 5 point anchoring system Spud Carrier Anchor boom Dk mounted add. gen-set/hppu Dredging automation

CombiSnijder 250DM MAIN PARTICULARS Length overall (Ladder raised) Length of pontoons Beam Depth Draft DREDGING FEATURES Dredging Depth Dredge Pump Mixture Capacity Production Capacity-Coarse Sand

32 CombiSnijder 250DM MAIN PARTICULARS Length overall (Ladder raised) Length of pontoons Beam Depth Draft DREDGING FEATURES Dredging Depth Dredge Pump Mixture Capacity Production Capacity-Coarse Sand Discharge Length Discharge pipe Diameter Suction pipe Diameter 26.5 m 17.5 m 5.2 m 1.6 m 1.0 m 12 m 447 kw 678m 3 /hr 136 m 3 /hr 1500 m 250 mm 250 mm POWER INSTALLED Total Installed Power(KTA 19M) RPM Gear Box 1.96 : 1 HPP + Alternator 100kW CUTTER FEATURES Cutter Power 35 kw Cutter Diameter 1000 mm RPM 0-35 LADDER & SWING WINCHES Ladder Winch m/min Swing winch m/min Swing 45deg 32m

CombiSnijder 350SM MAIN PARTICULARS Length overall (Ladder raised) Length of pontoons Beam Depth Draft

Length Discharge pipe Diameter Suction pipe Diameter 26.5 m 19.0 m 5.8 m 1.

1 m 06 m 566 KW 1500 m 3 /hr 300 m 3 /hr 1500 m 350 mm 350 mm POWER INSTALLED Total Installed Power(KTA

33 CombiSnijder 350SM MAIN PARTICULARS Length overall (Ladder raised) Length of pontoons Beam Depth Draft DREDGING FEATURES Dredging Depth Dredge Pump Mixture Capacity Production Capacity-Coarse Sand Discharge Length Discharge pipe Diameter Suction pipe Diameter 26.5 m 19.0 m 5.8 m 1.8 m 1.1 m 06 m 566 KW 1500 m 3 /hr 300 m 3 /hr 1500 m 350 mm 350 mm POWER INSTALLED Total Installed Power(KTA 38M) RPM Gear Box 2.48 : 1 HPP + Alternator 180kW CUTTER FEATURES Cutter Power 85 kw Cutter Diameter 1000 mm RPM 0-35 LADDER & SWING WINCHES Ladder Winch m/min Swing winch m/min Swing 45deg 32m

THANK YOU www.vedamdesign.com vedam@vedamindia.com LINKEDIN @ linked.in/vedamdes FACEBOOK @ VedamDesign TWITTER@ VedamDesign VEDAM DESIGN & TECHNICAL CONSULTANCY PVT.

34 THANK YOU linked.in/vedamdes VedamDesign TWITTER@ VedamDesign VEDAM DESIGN & TECHNICAL CONSULTANCY PVT. LTD. Marine Consulting Ship Design Production Design Conversion & Retrofit Design Site Supervision Engineering Analysis (FEM, CFD, Hydrodynamics) LNG Projects Dredgers

ECO 250 CUTTER SUCTION DREDGER

ECO 250 CUTTER SUCTION DREDGER RELIABLE BRANDS REPLACEABLE AUGER KNIVES OPTIMIZED PRODUCTION Dredge Yard +31 85 3035 866 www.dredgeyard.com MULTI-PURPOSE DREDGERS QUALITY FROM START TO FINISH Dredge Yard