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 July 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

Last Call for Netherlands Marine Propulsion Course

The Marine Propulsion Course this autumn is almost sold out. In this course you will be trained to understand the specific characteristics of ships, engines, transmission systems,

Transnet National Ports Authority Orders 9 Voith Water Tractors

In South Africa’s largest local shipbuilding contract Transnet National Ports Authority has ordered nine new Voith Water Tractors (VWT) for use in several ports across the country.

Electric Boat Powered by Aluminum-air Battery

Alcoa, Phinergy and Heig-VD University demonstrate electric boat with aluminum-air battery range extender at Lake Neuchâtel, Switzerland Alcoa, clean technology

Shipbuilding

Smart-Ship 'Quantum of the Seas' Readies

Tech-savvy modern travelers will be wowed by Royal Caribbean International's newest ship, 'Quantum of the Seas', which incorporates unprecedented levels of technology

Transnet National Ports Authority Orders 9 Voith Water Tractors

In South Africa’s largest local shipbuilding contract Transnet National Ports Authority has ordered nine new Voith Water Tractors (VWT) for use in several ports across the country.

Gazprom, Sovcomflot Expand LNG Transport Cooperation

Gazprom and Sovcomflot named the new state-of-the-art 170,000m³ liquefied natural gas carrier (LNGC) Pskov, after one of the oldest Russian cities. The ship will

Environmental

Trojan Marinex BWTS Earns USCG AMS Acceptance

Trojan Marinex ballast water treatment system receives U.S. Coast Guard AMS acceptance for all water qualities Trojan Technologies’ Trojan Marinex ballast water

DNV GL’s Arctic Map Shows Complex Risk Picture

The world’s need for energy is driving interest in further industrial activity in the Arctic, yet the region’s conditions are highly variable depending on the type of activity,

Australian Forces in S. Pacific Disaster Relief Exercise

Almost 200 members of the Australian Navy, Army and Air Force are joining forces with personnel from across the region in a major humanitarian relief exercise in the South Pacific,

Naval Architecture

Strategic Marine Debuts Crew Transfer Vessel

Strategic Marine, a specialist shipbuilder for the oil and gas sector, has unveiled its Generation 3 crew transfer vessel for the international offshore markets.

Ulstein Adds ‘X-STERN’ to its Design Portfolio

Ulstein Group introduced the X-STERN, a design feature increasing vessel operability through positive effects on station keeping, wave response, comfort and safety in harsh conditions.

OWS Christens Damen Fast Crew Supplier

Offshore Wind Services’ (OWS) latest Damen vessel – the Fast Crew Supplier 2008 Offshore Waddenzee - was officially named at Damen Oranjewerf Amsterdam, on August 22.

Marine Equipment

Port of Long Beach Chooses APS Crane OCR System

APS Technology Group, a member of the ABB Group and a leading provider of optical character recognition (OCR) and process automation technology solutions for marine and intermodal container terminals,

Crane Operator Alert: Certification Requirement

Although OSHA Stakeholders have voted to extend the final deadline in four different meetings, the deadline has not been officially extended by US Government agency OSHA as of yet,

Transnet National Ports Authority Orders 9 Voith Water Tractors

In South Africa’s largest local shipbuilding contract Transnet National Ports Authority has ordered nine new Voith Water Tractors (VWT) for use in several ports across the country.

Marine Science

DNV GL & MMGI Take Global Risk Identification Initiative

The partners inform that a new global initiative launched by DNV GL and Monday Morning Global Institute (MMGI) aims to identify opportunities for sustainable responses to a range of global risks.

Atlantic Slows Warming, Temperature Rises Seen Resuming from 2030

The Atlantic Ocean has masked global warming this century by soaking up vast amounts of heat from the atmosphere in a shift likely to reverse from around 2030 and spur fast temperature rises,

Storm near Lesser Antilles Could Develop into cyclone

An elongated area of low pressure located about 350 miles east of the Lesser Antilles has a 50 percent chance of becoming a tropical cyclone in the next 48 hours, the U.

 
 
Maritime Contracts Maritime Security Naval Architecture Pipelines Salvage Ship Electronics Ship Repair Ship Simulators Sonar Winch
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: 0.2297 sec (4 req/sec)