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OptiSave - On board

Product catalog summary

Introduction
The document discusses the implementation of the DESMI OptiSave™ system on the ship 'Victoria Kosan', owned by Lauritzen. The system is designed to reduce energy consumption and costs associated with sea water cooling pumps.

Specifications and Implementation
The ship is equipped with 39kW sea water cooling pumps integrated with the DESMI OptiSave™ system. The system has been installed on multiple ships, contributing to significant energy savings.

Energy Savings
During the first three months of operation, the system achieved a 66% reduction in energy consumption compared to pre-installation levels. This was based on actual readings taken by the crew. The average sea water temperature during this period was 23.5°C, with lower temperatures expected to yield even greater savings.

Financial Impact
The installation resulted in a savings of 8,300 EUR over the initial three months. The payback period for the investment is estimated to be one year. The project has been deemed a success, with predicted savings realized as expected.

Consultant's Testimonial
Carsten Routhe Johansen from Lauritsen Kosan confirmed the project's success, noting that four systems are currently installed, with a fifth planned for installation in autumn 2012. The savings amount to 78 tons of fuel per ship annually, translating to approximately 300,000 DKK per year per ship, with potential for greater savings if gas oil is used.

Conclusion
The DESMI OptiSave™ system has proven effective in reducing energy consumption and costs, with a successful implementation and significant financial benefits for the ship owner.

Catalog excerpts

DESMI OptiSave™ on board “Victoria Kosan” 39kW Sea Water cooling pumps equipped with DESMI OptiSaveTM. The Ship Owner Lauritzen has installed several OptiSaveTM systems which all have contributed to a relative large savings in energy consumption, and thus also fuel and money. All in the benefit for the ship owner. EUR total with OptiSave EUR total without OptiSave 30,0 Fuel costs for running SW cooling pumps [ EUR ] And the energy consumption after the installation of the DESMI OptiSave™ solution is indicated by the blue line. Sea water temperature over the logged period is indicated with the green line. Actually savings in the first 3 months Savings on a 39 kW SW cooling pump. Payback time = 1 year The achieved savings during the first 3 months of operation is shown in the example above. From the energy calculation it can be seen that the total accumulated savings from the relatively short period of time is 66% compared to the energy used before the installation of DESMI OptiSave™. These numbers are based on the actual readings made from the crew onboard. The average sea water temperature is 23.5 °C. Lower temperature will generate more savings. PROVEN TECHNOLOGY / www.desmi.com “The project has been a great success. All parts of the project has been running smoothly and according to the plan and today four systems are installed on our ships and the fifth system will be installed in the autumn of 2012. I really must say that all the promised savings are actually as predicted. This brought us savings of 78 ton of fuel per ship per year and with today’s dollar exchange rate it will be around 300.000 DKK per year for each ship. And the savings will be even bigger - if we use gas oil.” Consultant Carsten Routhe Johansen from Lauritsen Kosan CASE STORY The energy consumption as it would have been without the DESMI OptiSave™ solution is indicated

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