Imtech Designs for Energy-Efficient Research Vessel

marinelink.com
Monday, October 21, 2013

Imtech Marine provides complete Heating, Ventilation and Air Conditioning to new eco-friendly Research Vessel ‘Sonne’. Energy savings realized by Dynamic Simulation techniques.
 
Imtech Marine was selected as supplier of the new Research Vessel ‘Sonne’. Imtech designs and installs the complete HVAC system for accommodation areas, laboratories and machinery spaces, as well as the redundant cold and warm water supply system with a combination of turbo chillers and absorption chillers. After 44 years the current German research vessel ‘Sonne’ will be replaced by a new, eco-friendly and energy-efficient successor in the beginning of 2015, carrying the same name. The new ‘Sonne’ is currently under construction at the Meyer Werft shipyard in Papenburg, Germany, and will be going on scientific expeditions around the world 345 days per year like its predecessor. The vessel will contribute to find answers to relevant questions regarding the climate change, the supply of marine raw materials and the interference of humans with the sensitive marine ecosystem. By applying dynamic simulation techniques, Imtech Marine provides solutions achieving substantial energy savings on the HVAC system.
 

  • Dynamic Simulations

The project requires specific technical expertise, for example with regard to the demands of two climate laboratories on board at a temperature range between 0°C and 28°C. Also the requirements with regard to energy savings are high. With the help of dynamic simulations, Imtech Marine reduces the overall energy consumption of the ship by means of an elaborate regulation and automation of the cold water supply systems. Other challenges concern the short building time, the limited space available and the complexity to combine new green systems with conventional systems or requirements.
 
The Competence Centre Green Ships, which is the expert-group for eco-friendly and energy-efficient solutions at Imtech Marine, has  investigated two different approaches  of energy-efficient and energy saving technologies by dynamic simulation. “Due to the application of the latest simulation tools - Dymola and Modelica - Imtech is able to model and assess any complex system architecture very rapidly. The modelling and  simulation of multi-disciplinary systems can offer optimized and efficient solutions even before entering the detailed design phase.” states Eike Higgen, consultant at Imtech Marine’s Competence Center Green Ships.
 

  • Energy savings for the turbo chilling units

The first approach comprises the combination of turbo and absorption chilling units providing cold water with a sliding supply temperature for the vessel’s varying heat loads, which mostly depend on outside weather conditions. The chiller’s automation and control system increases the cold water supply temperature at lower cooling demand and decreases the temperature again at higher cooling loads. “The higher cold water supply temperature leads to energy savings for the turbo chilling units, due to better part load performance. Additionally, the cold water supply pumps are frequency controlled depending on the demand of the consumer’s cooling coils. Resulting from this, the electrical power consumption of the chiller and cold water supply pumps decreases by 15 to 20%.” explains Eike Higgen. This solution is already implemented by Imtech Marine in the control and automation design of the new ‘Sonne’.
 
The second simulation uses the ‘Sonne’ as an example and analyses energy savings for future projects by help of demand controlled ventilation (DCV) in galleys. The basic idea of DCV is to connect the cooking equipment with the exhaust air hoods. “That means if only 50% of the equipment is in use, only 50% of exhaust air is needed”, says Eike Higgen from Imtech Marine. This results in less electrical power consumption of all fans and at the same time in less cooling demand.
 
The Sonne has a length of almost 115 meters and a width of almost 21 meters, providing sufficient room for 35 crew members and 40 scientists at the same time. The ship will sail in 2015.

Maritime Reporter February 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Zamakona Yards' Commitment to Well-being

Recently employees of Zamakona Yards participated in a training course for maintaining Health, Safety and Environment (HSE). The theoretical practice focused on working at heights,

Ferus Smit to Launch Newbuild Bulker

Ferus Smit will launch newbuild bulk carrier Arklow Breeze on Friday, March 20 at Westerbroek.   Arklow Breeze is the sixth and last vessel of a series to be

Damen ASD 2810 Hybrid Tug Delivered to Multraship

Multraship took delivery of a Damen ASD 2810 Hybrid tug vessel, built at Damen Shipyards Galaţi, in Romania. The delivery is part of Multraship’s fleet expansion program,

Environmental

Satellite Images Reveal Ocean Acidification

Ocean acidification can now be seen from space, highlighting an ongoing danger of climate change and revealing the regions most at risk.   Pioneering techniques

Zamakona Yards' Commitment to Well-being

Recently employees of Zamakona Yards participated in a training course for maintaining Health, Safety and Environment (HSE). The theoretical practice focused on working at heights,

Dredging Project to Protect Virginia Shoreline

Outer Continental Shelf sand will protect infrastructure, restore dunes and habitat   The U.S. Bureau of Ocean Energy Management (BOEM) and Naval Air Station Oceana at Dam Neck,

Naval Architecture

Davie Building LNG-powered Ferries

Canadian shipbuilder Davie held a keel laying ceremony for MV Armand-Imbeau II, marking the beginning of the hull assembly for this first of two sisterships under

USCG Foundation Announces Scholarships

The Coast Guard Foundation, a non-profit organization committed to the education and welfare of Coast Guard members and their families, announced today that

Keels Laid for Two Aluminum OSVs

Triangle Marine Services and Marine Core & Charter host keel laying ceremony for two Aluminum Fast Offshore Support Vessels   UAE-based shipbuilder Triangle Marine

Marine Equipment

More Floating Accommodation for Lerwick

An accommodation ship, the SNAV Toscana is due at Lerwick on or around 6 March 2015 to supplement the floating accommodation at the port. Formerly operated as an Italian ferry,

VLCCF - 4Q & FY 2014 Results

Knightsbridge Shipping Limited ( VLCCF ) reports net income of $5.2 million and earnings per share of $0.06 for the fourth quarter compared with a net loss of $6.

“Jag Arjun” Delivered to Buyers

The Great Eastern Shipping Company Ltd. (G E Shipping) delivered its 1996-built Capesize Dry Bulk Carrier “Jag Arjun” (164,796 dwt) to the buyers on 26th February, 2015.

Marine Science

Satellite Images Reveal Ocean Acidification

Ocean acidification can now be seen from space, highlighting an ongoing danger of climate change and revealing the regions most at risk.   Pioneering techniques

Dredging Project to Protect Virginia Shoreline

Outer Continental Shelf sand will protect infrastructure, restore dunes and habitat   The U.S. Bureau of Ocean Energy Management (BOEM) and Naval Air Station Oceana at Dam Neck,

ST Engineering Y-O-Y Profits Slip

Singapore Technologies Engineering Ltd  reported today its full year financial results ended 31 December 2014 (FY2014) with a Group revenue of $6.54b compared to $6.

Interior Outfitting

Holland America Line Wins Cruise Critic Cruisers’ Choice Awards

Holland America Line won top honors in four categories in the 2015 Cruise Critic Cruisers’ Choice Awards. The premium cruise line took first place in Best Dining

 
 
Maritime Contracts Maritime Security Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Port Authority Ship Electronics Ship Repair Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2331 sec (4 req/sec)