DESMI OptiSave - Optimizing Pump Speed to Current Conditions Saving Fuel Brochure

PROVEN TECHNOLOGYDESMI OptiSave™Optimizing Pump Speed to Current Conditions Saving Fuel2OPTISAVETMENERGY EFFICIENCYSAVING TONS OF FUEL OIL3DESMI OptiSaveTMThere is an ever-present need for all vessel operators to better equip and adapt themselves to future developments in marine trading.DESMI OptiSaveTM is a step in the right direction.OptiSaveTM complies with EEDI, SEEMP and IMO rules.Energy efficiency and fuel savings in compliance with IMO, SEEMP and EEDI IMO has specified that the world fleet has to reduce CO2 emissions by 180 million tons by 2020. This is equal to savings on an average of 285 tons of CO2 or the same as 110 tons of fuel oil per vessel.If you install OptiSaveTM in your ships’ seawater system you will save approx. 70 tons of fuel oil per year (average value per vessel) which corresponds to 64% of the CO2 emission stipulated by IMO.If you install OptiSaveTM in the fresh-water system as well, the savings will be up to 140 tons of fuel oil, corresponding to 128% (average per vessel).Finally, if you also install the OptiSaveTM in your engine room fan system, the savings will be around 210 tons of fuel oil, in total 192% of the CO2 emission stipulated by IMO.Customer says“The five ships, in which OptiSaveTM has been installed, have all met the foreseen savings. We have saved 40,000 EUR/year per vessel.”Carsten Routhe Johansen, Lauritsen Kosan You can save millions of tons of fuel oil using OptiSaveTM4Seawater Cooling Pumps Control.All implemented DESMI OptiSave™ solutions have shown that the relatively inexpensive installations have an average payback time of less than one year. And the fact that the installed components have an expected lifetime of ten years or more means that you will see your investment returned to you many times. With OptiSaveTM we guarantee the most efficient solution, where energy efficiency and fuel savings are key benefits. The systems that are directly applicable with DESMI OptiSave™ include:• Seawater cooling systems• Fresh-water cooling systems• Engine room ventilation or any combinations of the above.New Building version:The New Building version of the OptiSaveTM is designed for new vessels. The concept has a basic control platform and is customised from project to project.Retrofit version:The Retrofit version of the OptiSaveTM is designed for easy and fast installation. The concept is modular and can be customised, also for ethernet and modbus communications. The existing automation installation (start/stop/standby function) and the interface to existing automation system will be kept. All OptiSaveTM systems are based on the same automation platform and can be integrated with the Automation Management System (AMS) of the vessel. E-motor data: 2x45kWPower consumption without OptiSaveTM 349.872 kWhPower consumption with OptiSaveTM 85.451 kWhPower saving 264.421 kWhPower saving in % 75,5OptiSaveTM in operation since August 2012Tessa Kosan - April 2013The OptiSave™ solutionThe many benefits of DESMI OptiSave™5The purpose of the system is to control the seawater cooling pumps to the actual cooling demand at any time by reducing/increasing pump(s)’ speed according to the actually needed cooling capacity.Furthermore, the system is to be integrated with the ship’s sequential start system and may be prepared for the controlling of priming ejectors in case one of the seawater cooling pumps is used as emergency bilge pump.OptiSaveTM is an intelligent system which operates the speed of the pumps, taking the following conditions into consideration:• SW temperatures outlet max. 48oC• Temperature of electric motores of CSW are monitored• Pressure drop across coolers are monitored• Flow through coolers are increased to 100%. 1 hour per 24 hours to reduce sediments in the coolersThe system layout corresponds to minimum class requirements, and therefore OptiSave™ is designed for basic systems. Each pump has its own individually mounted Variable Speed Drive (VSD) for pump speed/flow regulation. Seawater Cooling Pumps Control.Tessa Kosan - April 2013OptiSaveTM for the Seawater SystemThe OptiSave™ solution6Engine Room Fan ControlOptiSaveTM for the Fresh Water SystemThe purpose of the system is to control the LT/FW Cooling water pumps to the actual cooling demand at any time by reducing/increasing pump(s)’ speed according to the actually needed cooling capacity.Furthermore, the system is to be integrated with the ship’s sequential start system.The system layout corresponds to minimum class requirements, and therefore the OptiSave™ is designed for basic systems. Each pump has its own individually mounted Variable Speed Drive (VSD) for pump speed/flow regulation. On the electric of each individual pump motor there will be a PT100 sensor built-in. This sensor is fitted by the motor manufacturer for motor condition monitoring to prevent possible motor overheating. Each individual FW/LT Cooling Water pump has to be connected to its own VSD. And each VSD is coupled to the OptiSave™ Control Panel which in turn is being fed with process information from the system’s temperature and pressure transmitters. LT/FW Cooling Water Pumps Control7The purpose of the system is to control E/R fans to the actual conditions by reducing/increasing fan speed according to the actually needed airflow.Furthermore, the system is to be integrated with the ship’s CO2 release system, fire alarm system and also with the ship’s emergency stop system for fans.This will necessitate the use of a remotely controlled damper which has to be equipped with spring return and to be arranged in such a way that fans are interlocked with the attached fire dampers.One of the fans has to be connected to the ship’s emergency switchboard and to be arranged/installed in such way that this fan can act as CO2 exhaust fan.All E/R fans are to be equipped with automatic dampers incl. exhaust dampers in funnel/casing.The OptiSaveTM system will work on a combination of power signal from the fuel index transmitter of the main engines and one differential pressure transmitter measuring static over-pressure in the Engine Room (E/R). At the same time the system ensures that ambient temperature in the engine room is maintained at a given set point, however max. temperature to be 45o C.Engine Room Fan ControlOptiSaveTM for the Engine Room SystemLT/FW Cooling Water Pumps Control8DownloadNameDisplacementIce ClassN/AIMO No.:Sup typeCSR DesignBreadth [m]Lpp [m]TypeDraught [m]Crane reach [m]Max. CapacityDWT [ton]LWTCSRDeadweight [T]Crane SWL [T]DWT reference designCubic capacity# of cranesShaft MotorMCR [kW]SFC [g/kWh]Shaft limitkWMotor hLimited by ME shaftno.1.170,0no.1.0,97no.2.no.2.no.3.no.4.Fuel type Diesel/Gas Oil, ISO 8217, DMC - DMXkWf eff0,501,00MCR [kW]SFC [g/kWh]Generator hno.1.185,00,93no.2.0 kWno.3.0 ton (m)no.4.no.5.KnotsFuel type Diesel/Gas Oil, ISO 8217, DMC - DMXkWSG installedPhase 1: 1 Jan 2015 – 31 Dec 2019 no.1.Calculation optionno.2.Version 1.40Calculation ref:294685The information and results expressed by the BIMCO EEDI Calculator constitute an implementation of IMO MEPC.1/Circ.681, amended by WP.9 of MEPC 63 in March 2012, by MEPC 65/4/4 on inclusion of Ro-Ro cargo and passenger ships as well as by MEPC 65/4/5 on correction of EEDI for General Cargo Ship, and are subject to change without notice. The information and results expressed by the Calculator have been formed in good faith on the basis of the best information available at the time of implementation from sources believed to be reliable, but no warranty, express or implied, is made as to its accuracy, completeness or correctness. BIMCO accept no liability arising out of or in connection with the results of the Calculator and you are advised that any usage is at your own risk. In particular, the results should not be construed as certified, legal or otherwise.Shaft GeneratorReference speed@ Index ConditionMandatory fieldOptional fieldInnovative energy efficiency technologyIgnored fieldEEDI CalculatorDelivery dateShip detailsPropulsion power:Deadweight:Index ConditionYour calculator is up to dateMain Engine(s)Auxiliary Engine(s)MechanicalElectricalCorrectionspage 1/1 02-09-2013OptiSaveTM helps ship owners and designers to meet the requirement for reduction of C02 stipulated in IMO MEPC 62 rules. OptiSaveTM is designed to be integrated in new-build and retrofit applications and can be fully integrated into the overall Control System. Energy Efficiency Design Index (EEDI)The EEDI for new ships aims at promoting the use of more energy efficient (less polluting) equipment and engines. The level is to be tightened every five years, and so the EEDI is expected to stimulate continued innovation and technical development of all the components influencing the fuel efficiency of a ship right from its design phase.The EEDI requires a minimum energy efficiency level of CO2 emissions per capacity mile for different ship types and size segments. Divided over four phases, the level will be tightened over time. Emission reduction factors are set until 2025 when a 30% reduction is mandated over the average efficiency for ships built between 1999 and 2009.The EEDI has been developed for the largest and most energy intensive segments of the world’s merchant fleet and will cover 72% of emissions from new oil and gas tankers, bulk carriers, general cargo, refrigerated cargo and container ships. Energy Efficiency Design Index (EEDI) and SEEMP9DownloadNameDisplacementIce ClassN/AIMO No.:Sup typeCSR DesignBreadth [m]Lpp [m]TypeDraught [m]Crane reach [m]Max. CapacityDWT [ton]LWTCSRDeadweight [T]Crane SWL [T]DWT reference designCubic capacity# of cranesShaft MotorMCR [kW]SFC [g/kWh]Shaft limitkWMotor hLimited by ME shaftno.1.170,0no.1.0,97no.2.no.2.no.3.no.4.Fuel type Diesel/Gas Oil, ISO 8217, DMC - DMXkWf eff0,501,00MCR [kW]SFC [g/kWh]Generator hno.1.185,00,93no.2.0 kWno.3.0 ton (m)no.4.no.5.KnotsFuel type Diesel/Gas Oil, ISO 8217, DMC - DMXkWSG installedPhase 1: 1 Jan 2015 – 31 Dec 2019 no.1.Calculation optionno.2.Version 1.40Calculation ref:294685The information and results expressed by the BIMCO EEDI Calculator constitute an implementation of IMO MEPC.1/Circ.681, amended by WP.9 of MEPC 63 in March 2012, by MEPC 65/4/4 on inclusion of Ro-Ro cargo and passenger ships as well as by MEPC 65/4/5 on correction of EEDI for General Cargo Ship, and are subject to change without notice. The information and results expressed by the Calculator have been formed in good faith on the basis of the best information available at the time of implementation from sources believed to be reliable, but no warranty, express or implied, is made as to its accuracy, completeness or correctness. BIMCO accept no liability arising out of or in connection with the results of the Calculator and you are advised that any usage is at your own risk. In particular, the results should not be construed as certified, legal or otherwise.Shaft GeneratorReference speed@ Index ConditionMandatory fieldOptional fieldInnovative energy efficiency technologyIgnored fieldEEDI CalculatorDelivery dateShip detailsPropulsion power:Deadweight:Index ConditionYour calculator is up to dateMain Engine(s)Auxiliary Engine(s)MechanicalElectricalCorrectionspage 1/1 02-09-2013Energy Efficiency Design Index (EEDI) and SEEMPShip Energy Efficiency Management Plan (SEEMP)The Ship Energy Efficiency Management Plan (SEEMP) is an operational measure that improves the energy efficiency of a ship in a cost-effective manner.From 2013 onwards the SEEMP urges owners and operators of existing ships to review and consider operational practices and technology upgrades at each stage of the operation of a ship to optimise the energy efficiency performance. EEDI technical measures will have a significant long-term effect while SEEMP operational measures will have an effect mostly medium term.The many benefits of DESMI OptiSaveTMEnergy saving up to 80%Short return on investmentProlonged lifetime of pumps due to less wear and tear Minimum changes in existing electrical installationsProven technologyProven savings Reduced OPEXWorldwide service support10 Equipped for the futureWhen the required cooling is lower than the design criteria, OptiSave™ automatically reduces the power consumption of the seawater cooling pumps. This situation occurs when the seawater temperature is lower than 32°C and/or the main engine is operated at reduced load. It is the fact that only in limited areas in the seas around the world and within certain seasons does the sea temperature ever get this high. This means that sea going vessels are frequently designed with significant over-capacity built into the cooling systems. Given the over-capacity with the limited ability to regulate the pumps via on/off control and static orifices, DESMI decided to develop an energy optimization system for the marine industry. The DESMI OptiSave™ solution was conceived. Over-sizing and safety marginsOver-sizing is an issue which is unfortunately found in more areas within seawater cooling systems - not only in pumps. This often happens in the initial design stage and where ship designers, component suppliers and also yards, even vessel owners and operators, add to the increased system capacity. The inherent problem of over-sizing is due to the application of safety margins in all aspects of ship construction. This degree of over-engineering is inevitable and cannot be deviated from, if vessels are to maintain their global trading capability. As DESMI recognizes the constraints that the ship owners, designers and shipyards are bound to, we utilize the DESMI OptiSave™ solution to optimize what you already have, at a minimum expense, with maximum benefit. The OptiSave™ system is a powerful tool for energy optimization in real world applications. A complete package comprising initial feasibility study, design consultancy, installation, commissioning, financing, crew training and worldwide service.Average Sea Surface Temperature30 - 260 26 - 220 22 - 180 18 - 140 14 - 100 10 - 60 6 - 0011The OptiSave™ system is a powerful tool for energy optimization in real world applications. FinancingDESMI offers a financing concept where the ship owners pay for the OptiSaveTM system with the fuel savings in a period of max. two years. Please contact DESMI for further information.Options availableOn account of the highly customizable nature of the OptiSave™ solution there is a variety of options to choose from in addition to the standard package:Interface ProtocolsThe OptiSave™ solution has a wide range of options with regard to interface protocols to connect to the vessel‘s Automation Management System (AMS). Data ExportIn addition to this package, OptiSave™ has the option of being linked wirelessly to an onshore database to which the system automatically exports information from all the systems connected to the OptiSave™ solution.HMI (Touch screen)As an option OptiSaveTM offers the opportunity for an extra HMI on the bridge or in the control room.ValvesEspecially in relation to seawater cooling systems, DESMI OptiSave™ is able to introduce controllable valves in a variety of configurations. If your system contains 3-way valves, DESMI OptiSave™ can be configured to also monitor and control these valves.BackflushA backflush program can be provided in the OptiSaveTM management.This means that water will be pumped at full speed 50/60 Hz through the coolers (back blush pipe is required).A complete package comprising initial feasibility study, design consultancy, installation, commissioning, financing, crew training and worldwide service.What to expect?12www.desmi.comYou can read more about our pump solutions at www.desmi.com or contact us by phone: +45 96 32 81 11A number of OptiSaveTM references:MemberofGREEN SHIPOF THE FUTURE