🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BSI PD IEC TS 62600-2:2019:2021 Edition

BSI PD IEC TS 62600-2:2019:2021 Edition

$215.11

Marine energy. Wave, tidal and other water current converters – Marine energy systems. Design requirements

Published By Publication Date Number of Pages
BSI 2021 90
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document provides design requirements to ensure the engineering integrity of wave, ocean, tidal and river current energy converters, collectively referred to as marine energy converters. Its purpose is to provide an appropriate level of protection against damage from all hazards that may lead to catastrophic failure of the MEC structural, mechanical, electrical or control systems. Figure 1 illustrates the scope of this document and critical interfaces with other elements of a marine energy converter installation.

This document provides requirements for MEC main structure, appendages, seabed interface, mechanical systems and electrical systems as they pertain to the viability of the device under site-specific environmental conditions. This document applies to MECs that are either floating or fixed to the seafloor or shore and are unmanned during operational periods.

NOTE Refer to IEC 62600-10 for guidance on the design of moorings for floating MECs.

In addition to environmental conditions, this document addresses design conditions (normal operation, operation with fault, parked, etc.); design categories (normal, extreme, abnormal and transport); and limit states (serviceability, ultimate, fatigue and accidental) using a limit state design methodology.

Several different parties may be responsible for undertaking the various elements of the design, manufacture, assembly, installation, erection, commissioning, operation, maintenance and decommissioning of a marine energy converter and for ensuring that the requirements of this document are met. The division of responsibility between these parties is outside the scope of this document.

This document is used in conjunction with IEC and ISO standards cited as normative references, as well as regional regulations that have jurisdiction over the installation site.

This document is applicable to MEC systems designed to operate from ocean, tidal and river current energy sources, but not systems associated with hydroelectric impoundments or barrages. This document is also applicable to wave energy converters. It is not applicable to ocean thermal energy conversion (OTEC) systems or salinity gradient systems.

Although important to the overall objectives of the IEC 62600 series, this document does not address all aspects of the engineering process that are taken into account during the full system design of MECs. Specifically, this document does not address energy production, performance efficiency, environmental impacts, electric generation and transmission, ergonomics, or power quality.

This document takes precedence over existing applicable standards referred to for additional guidance. This document adheres to a limit state design approach utilizing partial safety factors for loads and materials to ensure MEC reliability in accordance with ISO 2394.

MECs designed to convert hydrokinetic energy from hydrodynamic forces into forms of usable energy, such as electrical, hydraulic, or pneumatic may be different from other types of marine systems. Many MECs are designed to operate in resonance or conditions close to resonance. Furthermore, MECs are hybrids between machines and marine structures. The control forces imposed by the power take-off (PTO) and possible forces from faults in the operation of the PTO distinguish MECs from other marine structures.

The document is applicable to MECs at the preliminary design stage to those that have progressed to advanced prototypes and commercial deployment. It is anticipated that this document will be used in certification schemes for design conformity.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
9 FOREWORD
11 INTRODUCTION
12 1 Scope
Figures
Figure 1 – Marine energy converter system boundary for IEC TS 62600-2 and interfaces
13 2 Normative references
15 3 Terms and definitions
4 Symbols and abbreviated terms
16 5 Principal elements
5.1 General
17 5.2 Design objectives
5.3 Technology assessment
Figure 2 – Design process for a MEC
18 5.4 Risk assessment
Tables
Table 1 – Technology classes
19 5.5 Safety levels
Table 2 – Safety levels
20 5.6 Basis of design
5.7 Environmental conditions
5.8 Life cycle considerations
5.9 Load definition and load combinations
21 5.10 Limit state design
5.11 Partial safety factors
22 5.12 Structural modelling and analysis
6 Environmental conditions
6.1 General
6.2 Primary environmental conditions
6.2.1 General
6.2.2 Waves
24 6.2.3 Sea currents
26 6.2.4 Water level
27 6.3 Secondary environmental conditions
6.3.1 General
6.3.2 Breaking waves
Figure 3 – Definition of water levels
28 6.3.3 Breaking wave-induced surf currents
6.3.4 Wind conditions
6.3.5 Sea and river ice
6.3.6 Earthquakes and tsunamis
29 6.3.7 Marine growth
6.3.8 Seabed movement and scour
6.3.9 Other environmental conditions
7 Design load cases
7.1 General
30 7.2 Load categories
Figure 4 – Process for determining design loads via load cases
31 7.3 Design situations and load cases
7.3.1 General
Table 3 – Types of loads that shall be considered
32 7.3.2 Interaction with waves, currents, wind, water level and ice
7.3.3 Design categories and conditions
Table 4 – ULS combinations of uncorrelated extreme events
33 7.3.4 Limit states
Table 5 – Design categories and conditions
34 7.3.5 Partial safety factors
35 7.3.6 Load case modelling and simulation
Table 6 – ULS partial load safety factors γf for design categories
36 7.3.7 Design conditions
37 Table 7 – Design load cases for WECs
39 Table 8 – Design load cases for TECs
45 8 Materials
8.1 General
46 8.2 Material selection criteria
8.3 Environmental considerations
47 8.4 Structural materials
8.4.1 General
8.4.2 Metals
48 8.4.3 Concrete
8.4.4 Composites
49 Table 9 – ISO test standards for composite laminates
50 8.5 Compatibility of materials
9 Structural integrity
9.1 General
9.2 Material models
51 9.3 Partial safety factors for materials
9.4 Design of steel structures
9.4.1 General
9.4.2 Steel partial safety factors
52 9.5 Design of concrete structures
9.5.1 General
9.5.2 Concrete material partial safety factors
Table 10 – Material partial safety factors γm for buckling
53 9.5.3 Reinforcing steel
9.6 Design of composite structures
9.6.1 General
9.6.2 Composite material partial safety factors
Table 11 – Values for test value uncertainty, γm1
54 Table 12 – Values for manufacturing variation γm2
Table 13 – Values for environmental factors, γm3
55 9.6.3 Joints and interfaces
Table 14 – Values for fatigue, γm4
56 10 Electrical, mechanical, instrumentation and control systems
10.1 Overview
10.2 General requirements
10.3 Electrical
10.3.1 General
Table 15 – Values for adhesive joints, γmj
57 10.3.2 Electrical system design
10.3.3 Protective devices
10.3.4 Disconnect devices
58 10.3.5 Earth system
10.3.6 Lightning protection
10.3.7 Electrical cables
59 10.4 Mechanical
10.4.1 General
10.4.2 Bearings
10.4.3 Gearing
10.5 Piping systems
10.5.1 General
10.5.2 Bilge systems
60 10.5.3 Ballast systems
10.5.4 Hydraulic or pneumatic systems
10.6 Instrumentation and control system
10.6.1 General
10.6.2 Locking devices
10.6.3 Protection against unsafe operating conditions
61 10.7 Abnormal operating conditions safeguard
11 Mooring and foundation considerations
11.1 General
11.2 Unique challenges for wave energy converters
11.3 Unique challenges for tidal energy converters
62 11.4 Fixed structures
11.5 Compound MEC structures
12 Life cycle considerations
12.1 General
63 12.2 Planning
12.3 Stability and watertight integrity
12.3.1 General
12.3.2 Stability calculations
12.3.3 Watertight integrity and temporary closures
12.4 Assembly
12.4.1 General
12.4.2 Fasteners and attachments
64 12.4.3 Cranes, hoists and lifting equipment
12.5 Transportation
12.6 Commissioning
65 12.7 Metocean limits
66 12.8 Inspection
12.8.1 General
12.8.2 Coating inspection
12.8.3 Underwater inspection
12.9 Maintenance
12.9.1 General
12.9.2 Maintenance planning
67 12.9.3 Maintenance execution
12.10 Decommissioning
68 Annexes
Annex A (normative) Corrosion protection
A.1 General
A.2 Steel structures
A.2.1 General
Figure A.1 – Profile of the thickness loss resulting from corrosion of an unprotected steel structure in seawater (1 mil = 0,025 4 mm)
69 A.2.2 Corrosion rates
A.2.3 Protective coatings
A.3 Cathodic protection
A.3.1 General
70 A.3.2 Closed compartments
A.3.3 Stainless steel
A.4 Concrete structures
A.4.1 General
71 A.4.2 Provision of adequate cover
A.4.3 Use of stainless steel or composite reinforcement
A.4.4 Cathodic protection of reinforcement
A.5 Non-ferrous metals
72 A.6 Composite structures
A.7 Compatibility of materials
73 Annex B (normative) Operational and structural resonance
B.1 General
B.2 Control systems
B.3 Exciting frequencies
B.4 Natural frequencies
74 B.5 Analysis
B.6 Balancing of the rotating components
75 Annex C (informative) Wave spectrum
C.1 Overview
C.2 The Pierson-Moskowitz spectrum
76 Figure C.1 – PM spectrum
77 Figure C.2 – JONSWAP and PM spectrums for typical North Sea storm sea state
78 C.3 Relationship between peak and zero crossing periods
C.4 Wave directional spreading
80 Annex D (informative) Shallow water hydrodynamics and breaking waves
D.1 Selection of suitable wave theories
Figure D.1 – Regions of applicability of stream functions, Stokes V, and linear wave theory
81 D.2 Modelling of irregular wave trains
D.3 Breaking waves
82 Figure D.2 – Breaking wave height dependent on still water depth
83 Figure D.3 – Transitions between different types of breaking waves as a function of seabed slope, wave height in deep waters and wave period
84 Bibliography

Related products

BSI PD IEC TS 62600-2:2019
$215.11