JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 43

Genesis of the project
Gurit identified the need for a rapid repair system capable of being used all year round to meet the growing demand for keeping wind turbines in service. With the exponential growth in turbines, it was felt that repairs would become a more pressing problem. The UV curing technology was identified as a solution for reliable cure and adhesion in a range of working conditions and as a way to increase the productivity of repair teams. With its unique technical expertise in design engineering, materials development, composite processing, materials testing and prototyping, Gurit successfully developed and tested its UVcuring materials, going through several iterations in its own prototyping centre to perfect the Renuvo repair system. During the development process, it soon became evident that existing UV cure lamps would not be suitable, so Gurit asked equipment suppliers to develop customised

LED UV curing systems and to provide lamp technology rugged enough for use in the field. The materials were then further demonstrated to potential end users in the Gurit workshop to get feedback and make final iterations. Gurit’s in-house and GLqualified testing laboratories tested mechanical properties, adhesion and other processing factors. High-humidity, hot and low-temperature environments were created to test the use of the products in varied working conditions, as the goal was to provide a product that would expand the current weather repair window. Once

through this testing cycle, Gurit worked in co-operation with Renewable Advice to test the product in the field so as to verify its earlier prototyping successes and launch the repair system confident in its performance.

A huge market
The new solution drastically changes the market opportunities for turbine blade repairs. With traditional wet laminating resins, the ambient temperature (above +15˚C) is a significant limiting factor in the repair schedule. Adding to this the lengthy repair procedure and cleaning and finishing operations, the complexity of a repair is obvious. With Renuvo, the singlecomponent materials eliminate mixingrelated human errors, the UV cure drastically reduces repair time and the GLcertified repair procedure at temperatures as low as +5˚C results in a clean, easy-touse and robust solution for the operation and maintenance market. n

Main advantages
- Over 50% reduction in structural repair time - Low odour, zero-VOC resin - Styrene- and amine-free - Extended weather window for repair from +5°C - Zero post-cure for repair - Compatible with all types of blade construction technologies, including prepreg, epoxy infusion and polyester infusion - Certificate published on the Germanischer Lloyd website and also available from Gurit on request

No64 April 2011 / jec composites magazine
More information: www.gurit.com

43

Feature wind energy


http://www.gurit.com http://www.eco-dec.be

JEC COMPOSITES MAGAZINE - Issue #64 - April 2011

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #64 - April 2011

Cover
Edito
Point of view: fast expansion
Contents
Agenda of Events
COMPANY & BUSINESS
In Brief
Reinforcement - Red Composites: a real expertise in carbon fibre
Housing - Housetec: a young company with a background of 40 years’ experience
Asia - Hua Dong Fibreglass, an SME that exports worldwide
APPLICATIONS
Construction - Creative eye-catching design for a new Sheraton hotel
Marine - Multiplast builds the Groupama V070
Awards - ICERP-JEC Innovation Awards Programme 2011: eight companies rewarded
MARKET
Human capital - Latest appointments
Sports and Leisure - Rossignol Group: innovation and performance in winter skis applications
FEATURE WIND ENERGY
Reinforcement - WebCore Technologies: great ambitions in the wind industry
New rovings for wind turbine blade applications
Prepreg spar caps: a solution for today
Software - Industrial software for manufacturing large components such as wind blades
Leveraging an end-to-end solution for composite wind turbine blades
Laser placement - Manufacturing rotor blades with highest precision while reducing costs
Automation - A fully-automated manufacturing process for wind blades
Maintenance - An innovative, certified blade repair system
RESEARCH & DEVELOPMENT
Testing - Using nano-scratch testing to detec composite failure
Mould - Processing technology for the rapid production of advanced composites
TECHNOLOGY & INNOVATIONS
Robot - Robotic fibre placement machine helps reduce energy consumption
Process - A new industrialized construction process for transport infrastructures
Fibre placement - Tape laying and fibre palcement: complementary solutions
NDT - What’s new in non-destructive testing labs?
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Cover
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 2
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Edito
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Point of view: fast expansion
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 5
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Contents
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 7
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - In Brief
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Reinforcement - Red Composites: a real expertise in carbon fibre
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Housing - Housetec: a young company with a background of 40 years’ experience
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Asia - Hua Dong Fibreglass, an SME that exports worldwide
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 13
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Construction - Creative eye-catching design for a new Sheraton hotel
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 15
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Marine - Multiplast builds the Groupama V070
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 17
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Awards - ICERP-JEC Innovation Awards Programme 2011: eight companies rewarded
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 19
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 20
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 21
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 22
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Human capital - Latest appointments
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Sports and Leisure - Rossignol Group: innovation and performance in winter skis applications
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 25
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 26
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 27
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Reinforcement - WebCore Technologies: great ambitions in the wind industry
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 29
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - New rovings for wind turbine blade applications
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Prepreg spar caps: a solution for today
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Software - Industrial software for manufacturing large components such as wind blades
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 33
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Leveraging an end-to-end solution for composite wind turbine blades
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 35
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 36
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 37
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Laser placement - Manufacturing rotor blades with highest precision while reducing costs
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 39
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Automation - A fully-automated manufacturing process for wind blades
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 41
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Maintenance - An innovative, certified blade repair system
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 43
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 44
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Testing - Using nano-scratch testing to detec composite failure
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 46
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 47
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 48
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Mould - Processing technology for the rapid production of advanced composites
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 50
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 51
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 52
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Robot - Robotic fibre placement machine helps reduce energy consumption
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Process - A new industrialized construction process for transport infrastructures
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 55
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Fibre placement - Tape laying and fibre palcement: complementary solutions
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 57
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - NDT - What’s new in non-destructive testing labs?
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 59
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 60
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 61
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 62
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 63
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 64
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 65
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 66
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 67
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 68
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