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ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field SYSTEM FOR WAVE ENERGY CONVERSION  EXPLOITING MULTIPLE RENEWABLE ENERGY SOURCES  CH AND DEVELOPMENT Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr European Patent Office  EP1734255
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],ACTIVITIES RELATED TO WAVE ENERGY  DEVELOPMENT OF OFFSHORE WIND PARKS  Wind measurement systems Platforms supported on the sea bottom for relatively shallow waters  Fitted with tower of big height using anemometers  Fitted with low height tower using the LIDDAR system  Floating Platforms of Intense Floatation  Fitted with tower of big height using anemometers  Fitted with low height tower using the LIDDAR system
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],THE BUILDING ELEMENT OF THE SYSTEM IS  “ WECO – THE WAVE ENERGY CONVERTER”  WECO  IS AN OSCILLATING BODY COLUMN (OBC) AS OPPOSED TO OSCILLATING WATER COLUMN (OWC)  WECO  CONVERTS THE STOCHASTIC WATER MOTION TO A VERTICAL PALINDROMIC MOTION OF A BODY FLOATING INSIDE A COLUMN  SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE FLACTUATING BODY DRIVES A PULLEY AND THROUGH IT THE PISTON OF AN AIR PUMP WHICH PRODUCES COMPRESSED AIR  THE AIR PUMP IS OF DOUBLE ACTION AND PRODUCES COMPRESSED AIR IN ALL PHASES OF THE BODY MOTION  THE COMPRESSED AIR IS LED TO AN AIR TANK OF INDERMEDIATE STORAGE THROUGH PIPES AND UNIDIRECTIONAL VALVES OF ADJUSTABLE OPERATING PRESSURE THE BUILDING  ELEMENT  OF THE SYSTEM
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],A CERTAIN NUMBER OF  WECO  WITH AN AIR TANK AND AN AIR MOTOR, DRIVING A GENERATOR , FORM THE  BASIC UNIT  OF ELECTRICITY PRODUCTION  SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  BASIC UNIT  STRUCTURE OF THE BASIC ELECTRICITY PRODUCTION UNIT
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],THE CARRIER IS AN  INTENSE FLOATATION  PLATFORM  (TENSION LEG)   ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],BASIC CHARACTERISTICS – ADVANTAGES  UNDER SOME CISCUMSTANCES THE  NATURAL PERIOD  OF THE PLATFORM (CARRIER) CAN BE TUNED TO BE OUTSIDE THE WAVE BAND OF THE PREVAILING WAVES IN THE AREA OF INSTALLATION  SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE CARRIER OF A PRODUCTION UNIT
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],A PLATFORM (CARRIER) OF INTENSE FLOATATION WHICH CARRIES A BASIC PRODUCTION UNIT CONSIST A BASIC MACHINE FOR ELECTRICITY PRODUCTION  - (MODULE)   THE MODULES ARE CONNECTED TO BUILT A COMPLETE INSTALLATION TO PRODUCE ELECTRICITY FROM WAVES  WITH THE PROPER ALLOCATION OF THE WECO INSIDE THE PLATFORM THE EXPLOITATION OF THE WAVE FIELD CAN BE MAXIMISED  WITH THE PROPER CONNECTION OF BASIC UNITS BETWEEN EACH OTHER IT IS POSSIBLE TO DESIGN AN INSTALLATION THAT CAN EXPLOIT AT THE MAXIMUM THE WAVE FIELD OF A SPECIFIC AREA  SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  UNIT FOR ELECTRICITY PRODUCTION  (BASIC MACHINE)
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY  BASIC INNOVATIVE CHARACTERISTICS
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],CAPABILITY “1”  TEMPORARY STORAGE OF ENERGY IN THE FORM OF COMPRESSED AIR IN AIR RESEVOIRS OF THE  BALLON TYPE  INSTALLED IN THE SEA BOTTOM  CAPABILITY “2”  EXPLOITATION OF OTHER RENEWABLE ENERGY SOURCES  SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY   THE COMPRESSED AIR AS THE ENERGY UNDERLAYER OF THE SYSTEM
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY   TEMPORARY ENERGY STORAGE  -  NORMALISATION  -
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],WITH THE COMPRESSED AIR TO BE THE ENERGY UNDERLAYER OF THE PROPOSED SYSTEM IT IS POSSIBLE TO EXPLOIT OTHER RENEWABLE ENERGY SOURCES.  ,[object Object],[object Object],[object Object],SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY   EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],THE INSTALLATION OF WIND GENERATORS OFFSHORE CAN BE COMBINED WITH THE PARALLEL EXPLOITATION OF THE WAVE FIELD MAXIMISING THE OUTPUT AND MINIMISING THE COST OF THE INVESTMENT  A SERIOUS POSSIBILITY IS SHOWING UP THAT THE SYSTEM OF TEMPORARY STORAGE OF ENERGY IN AIR RESERVOIRS CAN BE USED IN CONJUCTION WITH THE WIND ENERGY  IT IS SHOWING UP, THEREFORE, THE POSSIBILITY TO BUILD UP  HYBRID SYSTEMS  IN WHICH INSTEAD OF WATER, AS THE MEANS OF STORAGE, THE COMPRESSED AIR WILL BE USED INSTEAD AND THE STORAGE TANKS WILL BE  AIR RESERVOIRS OF BALLLOON TYPE  INSTALLED AT THE SEA BOTTOM.  SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY   HYBRID SYSTEMS. ARE THEY POSSIBLE ?
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],IN THEORY THE SYSTEM IS POSSIBLE AND REALISTIC.  WHAT ABOUT REAL LIFE, HOWEVER ? THE BASIC WECO OPERATION HAS BEEN TESTED AND ITS  PERFORMANCE AGAINST THEORITICAL CALCULATIONS HAS BEEN CONFIRMED. COMPRESSED AIR WITH PRESSURE  > 3  BARS WAS PRODUCED. THE TESTED SYSTEM WAS PRIMITIVE, WITH COLUMNS OF SMALL DIAMETER AND HEIGHT AND A BODY OF SMALL WEIGHT.  HOWEVER IT WORKS. PLATFORMS OF INTENSIVE FLOATATION WHICH ARE CAPABLE TO CARRY WECO HAVE BEEN CONSTRUCTED AND TESTED IN REAL CONDITIONS OFFSHORE LAURION AREA IN GREECE. SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  IS THE PROPOSED SYSTEM A REALISTIC PROPOSITION ?
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],The calculation of  the wave energy potential in a specific area  is based on tables of wave heights and periods with their frequencyof occurrence during a year.  Preliminary calculations for the proposed system give : ,[object Object],The wave energy content for a given wave is given as  Ε=1/8 ρ gH 2  (Joule /m 2 )   and the power along a wave crest  P  = ½ Ε. C (W/m) ,[object Object],[object Object],[object Object],SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  WHICH CAN BE THE EFFICIENCY OF THE PROPOSED SYSTEM ?
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],The equations describing the motions of the body under the action of waves and of the belt (or chain) that drives the pulley are very complicated and require the development of time domain simulation programs.   The force coming from the belt is complicated and it depends : At the design phase  :  from the pulley diameter, the piston diameter, the disk diameter, the desired  pressure etc. During operation  : from the piston position, the air compression, the tuning of the valves  For illustration purposes the simplified form of the equations can be written  : For the free floating body its natural frequency is given  by the relation  : SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE THEORETICAL BASIS OF WECO  OPERATION
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],For the free floating body its natural frequency is given from the relation: Such a body presents high response factors  ( RAO’s) at wave periods close to its natural period, but very poor outside a narrow band around its natural period.  The body that we use in WECO is of  adjustable natural period  with high responses in a wide range of wave periods.  The tuning is achieved by changing the mass of the body during operation, depending on the incoming wave characteristics.  The tuning is performed automatically through a system using sensors to measure wave characteristics and a controller that drives a pump embedded in the body  Such a body we call smart body or smart BuOY  SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE SMART BuOY
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],Time domain simulation program “WAGEN”  has been developed to study the responses of WECO to simple sinusoidal waves SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  THE SMART BuOY
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  DIAGRAMMATIC REPRESENTATION OF THE BASIC PRODUCTION  UNIT
ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece  Tel .  +30  210   6775   003,  Fax   +30  210   6812   770,  www.martech.gr , email :  tech @ martech . gr ,[object Object],THE WAVE ENERGY CONVERTER OF “OFFSHORE ENERGY SYSTEMS” IS UNDER DEVELOPMENT WITH THE AIM VERY SOON A PILOT INSTALLATION TO BE READY SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES  COOPERATION ON THE PROJECT IS DESIRABLE  European Patent Office  EP1734255

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WECO - Offshore Energy Systems

  • 1. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field SYSTEM FOR WAVE ENERGY CONVERSION EXPLOITING MULTIPLE RENEWABLE ENERGY SOURCES CH AND DEVELOPMENT Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr European Patent Office EP1734255
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