Use of a commercial dynamic process simulator to enhance energy efficient ship design

Vesa Lepistö, Jari Lappalainen, Kari Sillanpää, Pekka Ahtila

Research output: Contribution to conferenceConference articleScientific

Abstract

Global maritime industry is heading challenges due to constantly increasing bunker oil prices and tightening environmental regulations. Energy efficiency has become increasingly important to ship owners and builders. A modern ship includes complex power plant with mechanical, electrical and thermal systems. Practically all energy used onboard originates from fuel; only 40-60 % of this energy is fully utilized. Significant savings are achievable by improving waste heat utilization. Complex and interconnected systems challenge this kind of improvement work; this is where simulation on ship systems stands out. Simulation technology has been used for energy systems analysis already for decades in onshore energy industry; now it is more and more also applied in marine engineering. In this study a commercial dynamic process simulator Apros was used to model and simulate energy systems of a cruise ferry Viking Grace, which was delivered to Viking Line in January 2013 by Meyer Turku shipyard (at that time STX Finland). The ferry features novel energy saving solutions, such as a waste heat accumulator system and cooling options by liquefied natural gas (LNG) vaporizing, and by sea water. These systems were modelled and validated against measurements from the actual system. The paper discusses the use of dynamic simulator within the ship energy efficiency context, and illustrates the modelling conducted and the main results obtained. The study indicated potential for substantial benefits in introducing an overall ship systems simulation in the ship design process. The validation proved the reliability of the used dynamic simulation tool. The study showed that a proper simulation model can give valuable insights into the design of energy efficient ship including operability aspects. Especially, simulation provides a tool to evaluate new design concepts in new buildings, and help to find possible ways to improve the energy efficiency in existing ships. Recently Viking Line has started another energy efficiency improvement project together with Meyer Turku shipyard and a Swedish company Climeon to convert excess heat into electricity. First simulation results of this new Climeon's product called "Ocean 100" are briefly presented in the results section.
Original languageEnglish
Publication statusPublished - 2015
Event12th Annual Green Ship Technology Conference, GST2015 - Copenhagen, Denmark
Duration: 11 Mar 201512 Mar 2015

Conference

Conference12th Annual Green Ship Technology Conference, GST2015
Abbreviated titleGST2015
CountryDenmark
CityCopenhagen
Period11/03/1512/03/15
OtherThe Future of emissions controls for Shipping Summit: 10 March 2015
GST Main Conference 11-12 March 2015
Performance Monitoring Seminar: 13 March 2015

Fingerprint

Ships
Simulators
Energy efficiency
Shipyards
Large scale systems
Marine engineering
Industry
Environmental regulations
Waste heat
Waste heat utilization
Liquefied natural gas
Vaporization
Energy conservation
Power plants
Electricity
Systems analysis
Cooling
Computer simulation
Water
Hot Temperature

Cite this

Lepistö, V., Lappalainen, J., Sillanpää, K., & Ahtila, P. (2015). Use of a commercial dynamic process simulator to enhance energy efficient ship design. Paper presented at 12th Annual Green Ship Technology Conference, GST2015, Copenhagen, Denmark.
Lepistö, Vesa ; Lappalainen, Jari ; Sillanpää, Kari ; Ahtila, Pekka. / Use of a commercial dynamic process simulator to enhance energy efficient ship design. Paper presented at 12th Annual Green Ship Technology Conference, GST2015, Copenhagen, Denmark.
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title = "Use of a commercial dynamic process simulator to enhance energy efficient ship design",
abstract = "Global maritime industry is heading challenges due to constantly increasing bunker oil prices and tightening environmental regulations. Energy efficiency has become increasingly important to ship owners and builders. A modern ship includes complex power plant with mechanical, electrical and thermal systems. Practically all energy used onboard originates from fuel; only 40-60 {\%} of this energy is fully utilized. Significant savings are achievable by improving waste heat utilization. Complex and interconnected systems challenge this kind of improvement work; this is where simulation on ship systems stands out. Simulation technology has been used for energy systems analysis already for decades in onshore energy industry; now it is more and more also applied in marine engineering. In this study a commercial dynamic process simulator Apros was used to model and simulate energy systems of a cruise ferry Viking Grace, which was delivered to Viking Line in January 2013 by Meyer Turku shipyard (at that time STX Finland). The ferry features novel energy saving solutions, such as a waste heat accumulator system and cooling options by liquefied natural gas (LNG) vaporizing, and by sea water. These systems were modelled and validated against measurements from the actual system. The paper discusses the use of dynamic simulator within the ship energy efficiency context, and illustrates the modelling conducted and the main results obtained. The study indicated potential for substantial benefits in introducing an overall ship systems simulation in the ship design process. The validation proved the reliability of the used dynamic simulation tool. The study showed that a proper simulation model can give valuable insights into the design of energy efficient ship including operability aspects. Especially, simulation provides a tool to evaluate new design concepts in new buildings, and help to find possible ways to improve the energy efficiency in existing ships. Recently Viking Line has started another energy efficiency improvement project together with Meyer Turku shipyard and a Swedish company Climeon to convert excess heat into electricity. First simulation results of this new Climeon's product called {"}Ocean 100{"} are briefly presented in the results section.",
author = "Vesa Lepist{\"o} and Jari Lappalainen and Kari Sillanp{\"a}{\"a} and Pekka Ahtila",
note = "Only abstract reviewed, not published Project : 78201 ; 12th Annual Green Ship Technology Conference, GST2015, GST2015 ; Conference date: 11-03-2015 Through 12-03-2015",
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Lepistö, V, Lappalainen, J, Sillanpää, K & Ahtila, P 2015, 'Use of a commercial dynamic process simulator to enhance energy efficient ship design' Paper presented at 12th Annual Green Ship Technology Conference, GST2015, Copenhagen, Denmark, 11/03/15 - 12/03/15, .

Use of a commercial dynamic process simulator to enhance energy efficient ship design. / Lepistö, Vesa; Lappalainen, Jari; Sillanpää, Kari; Ahtila, Pekka.

2015. Paper presented at 12th Annual Green Ship Technology Conference, GST2015, Copenhagen, Denmark.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - Use of a commercial dynamic process simulator to enhance energy efficient ship design

AU - Lepistö, Vesa

AU - Lappalainen, Jari

AU - Sillanpää, Kari

AU - Ahtila, Pekka

N1 - Only abstract reviewed, not published Project : 78201

PY - 2015

Y1 - 2015

N2 - Global maritime industry is heading challenges due to constantly increasing bunker oil prices and tightening environmental regulations. Energy efficiency has become increasingly important to ship owners and builders. A modern ship includes complex power plant with mechanical, electrical and thermal systems. Practically all energy used onboard originates from fuel; only 40-60 % of this energy is fully utilized. Significant savings are achievable by improving waste heat utilization. Complex and interconnected systems challenge this kind of improvement work; this is where simulation on ship systems stands out. Simulation technology has been used for energy systems analysis already for decades in onshore energy industry; now it is more and more also applied in marine engineering. In this study a commercial dynamic process simulator Apros was used to model and simulate energy systems of a cruise ferry Viking Grace, which was delivered to Viking Line in January 2013 by Meyer Turku shipyard (at that time STX Finland). The ferry features novel energy saving solutions, such as a waste heat accumulator system and cooling options by liquefied natural gas (LNG) vaporizing, and by sea water. These systems were modelled and validated against measurements from the actual system. The paper discusses the use of dynamic simulator within the ship energy efficiency context, and illustrates the modelling conducted and the main results obtained. The study indicated potential for substantial benefits in introducing an overall ship systems simulation in the ship design process. The validation proved the reliability of the used dynamic simulation tool. The study showed that a proper simulation model can give valuable insights into the design of energy efficient ship including operability aspects. Especially, simulation provides a tool to evaluate new design concepts in new buildings, and help to find possible ways to improve the energy efficiency in existing ships. Recently Viking Line has started another energy efficiency improvement project together with Meyer Turku shipyard and a Swedish company Climeon to convert excess heat into electricity. First simulation results of this new Climeon's product called "Ocean 100" are briefly presented in the results section.

AB - Global maritime industry is heading challenges due to constantly increasing bunker oil prices and tightening environmental regulations. Energy efficiency has become increasingly important to ship owners and builders. A modern ship includes complex power plant with mechanical, electrical and thermal systems. Practically all energy used onboard originates from fuel; only 40-60 % of this energy is fully utilized. Significant savings are achievable by improving waste heat utilization. Complex and interconnected systems challenge this kind of improvement work; this is where simulation on ship systems stands out. Simulation technology has been used for energy systems analysis already for decades in onshore energy industry; now it is more and more also applied in marine engineering. In this study a commercial dynamic process simulator Apros was used to model and simulate energy systems of a cruise ferry Viking Grace, which was delivered to Viking Line in January 2013 by Meyer Turku shipyard (at that time STX Finland). The ferry features novel energy saving solutions, such as a waste heat accumulator system and cooling options by liquefied natural gas (LNG) vaporizing, and by sea water. These systems were modelled and validated against measurements from the actual system. The paper discusses the use of dynamic simulator within the ship energy efficiency context, and illustrates the modelling conducted and the main results obtained. The study indicated potential for substantial benefits in introducing an overall ship systems simulation in the ship design process. The validation proved the reliability of the used dynamic simulation tool. The study showed that a proper simulation model can give valuable insights into the design of energy efficient ship including operability aspects. Especially, simulation provides a tool to evaluate new design concepts in new buildings, and help to find possible ways to improve the energy efficiency in existing ships. Recently Viking Line has started another energy efficiency improvement project together with Meyer Turku shipyard and a Swedish company Climeon to convert excess heat into electricity. First simulation results of this new Climeon's product called "Ocean 100" are briefly presented in the results section.

M3 - Conference article

ER -

Lepistö V, Lappalainen J, Sillanpää K, Ahtila P. Use of a commercial dynamic process simulator to enhance energy efficient ship design. 2015. Paper presented at 12th Annual Green Ship Technology Conference, GST2015, Copenhagen, Denmark.