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By: Jeroen Berger, November 19, 2020 The Belgium dredging company DEME and the Taiwanese shipbuilding group CSBC have recently launched the construction of a floating and heavy lift installation vessel for the Taiwanese offshore wind market. With its 4,000-tonne crane capacity and DP3 technology, the ‘Green Jade’ can transport the next generation of foundations and giant multi-megawatt wind turbines, jackets and components in a single shipment.
Reducing the carbon footprint was one of the challenging design criteria. Where normally more than half of the energy will be lost as waste heat through the exhaust pipe, now 8 efficiency PACKs (waste heat recovery systems) will be used to recover 100% green electricity from the waste heat of the engines. These systems are developed by our partner Orcan Energy. The 4 installed dual-fuel engines will be each equipped with 2 efficiency PACKs. When all engines are running, more than 500 kW of electrical power is generated from the waste heat on board.
Hedwig Vanlishout, CEO of CSBC-DEME Wind Engineering: "Environmental considerations are an important element of Green Jade’s design. Waste heat recovery is a key technology in this respect, in addition to various other fuel-saving measures on board of the vessel. We chose Orcan Energy because the efficiency PACKs adapt optimally to load fluctuations and also work well at low loads."
For Orcan Energy, established in 2008, is this the largest order in the marine sector in the company’s history. "Many players around the world are working on making ships more environmentally friendly. The fact that we as a German CleanTech company are now even on board Taiwan's first offshore installation ship with several of our waste heat recovery solutions and thus part of a huge wind farm project in Asia confirms this trend. The use of excess waste heat is an important and economical component of the decarbonization of shipping," says Andreas Sichert, CEO of Orcan Energy.
The technology behind converting waste heat into electricity, is based on the Organic Rankine Cycle (ORC). Here, the refrigerant is evaporated – a non-toxic, non-flammable hydrocarbon – and routed to the expansion machine as superheated vapour. The highly pressurized refrigerant is expanded, thereby driving the rotary screws in the expansion machine. The rotational energy is used to drive a generator that produces electricity.
To make profitable use of the waste heat on board the ‘Green Jade’, the efficiency PACKs make use of the waste heat from the engine cooling water and exhaust gases.
About Orcan Energy Orcan Energy AG is a leading European CleanTech company that develops, manufactures and sells efficient energy solutions for the conversion of waste heat into electricity based on Organic Rankine Cycle (ORC) technology. Orcan Energy was founded in 2008 by Dr. Andreas Sichert, Dr. Andreas Schuster und Richard Aumann, with the aim of providing companies from a variety of industry sectors a simple, cost-saving and efficient energy solution that unlocks the enormous potential of unused industrial waste heat sources. So far, Orcan Energy AG has sold more than 200 modules globally, making it the largest provider in the low-temperature sector universally. Orcan Energy customers benefit from clean electricity at the lowest cost of energy worldwide. Given the enormous global waste heat potential, the company sees itself as an indispensable player in the energy world of tomorrow.
Orcan Energy has established a joint venture with VPower Group International Holdings LTD, China's leading Integrated Power Generation Company, and the financially strong CITIC Pacific Ltd to develop new markets in Asia. Orcan Energy AG employs 60 people and is headquartered in Munich.
In the Benelux market, Orcan Energy is represented by Berger Maritiem, a modern trading and consulting company focusing on sustainability. With Orcan Energy's expertise to make use of the waste heat from the engine cooling water and exhaust gases and convert this into renewable energy, Berger Maritiem has an ideal partner that makes a significant contribution to the company's objective: helping ship owners and shipping companies by improving the sustainability of their ship or fleet.
About DEME DEME is a world leader in the highly specialised fields of dredging, solutions for the offshore energy industry, infra marine and environmental works. The company can build on more than 140 years of know-how and experience and has fostered a pioneering approach throughout its history, enabling it to be a front runner in innovation and new technologies.
DEME’s vision is to work towards a sustainable future by offering solutions for global challenges: a rising sea level, a growing population, reduction of CO2 emissions, polluted rivers and soils and the scarcity of natural resources.
While the company’s roots are in Belgium, DEME has built a strong presence in all of the world’s seas and continents, operating in more than 90 countries worldwide. DEME can rely on 5,200 highly skilled professionals across the globe. With a versatile and modern fleet of over 100 vessels, backed by a broad range of auxiliary equipment, the company can provide solutions for even the most complex projects.
DEME achieved a turnover of 2.62 billion euros in 2019.
About CSBS Founded back on November 7th in 1973, CSBC is the largest shipbuilding company in Taiwan. Their headquarters was established in Kaohsiung, with two shipyards in Keelung and Kaohsiung. In addition, there is an office in Taipei, to serve their customers and shipowners.
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New wind turbine installation vessel from DEME recovers green electricity from waste heat with 8 efficiency PACKs from Orcan Energy AG
