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The optimal load profile for the Nieuw Statendam

A thesis concerning the most effective way of sailing

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The optimal load profile for the Nieuw Statendam

A thesis concerning the most effective way of sailing

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The Nieuw Statendam is equipped with a program called ENIRAM. This program calculates the optimal engine configuration and load expressed in revolutions per minute of the propellers. The issue with this program is that it only looks at the main power plants and does not take the waste heat recovery system into consideration. This can lead to a drop in waste heat recovery, which can lead to a loss of overall efficiency. When the engine loads drops below a certain point, the heat extracted from the HT system and the exhaust gasses becomes so little that certain systems, such as the evaporators, need to be shut off. The auxiliary oil fired boiler would also need to start burning fuel in order to produce more steam. The purpose of this research was to calculate the minimal operational loads for optimal waste heat recovery. This was done by calculating the amount of heat stored in the HT system and in the exhaust gasses flowing through the exhaust gas boiler. By calculating the amount of heat in these systems under different engine loads, a graph was created using Microsoft Excel, clearly showing a drop in waste heat recovery beneath a certain load. Measurements were taken under eight different loads and compared between one another. Results were both taken in a two engine configuration and a three engine configuration. All results were obtained in summer conditions, as the vessel was sailing in the Caribbean at the time of data collection. All results were placed in a graph. The results showed a significant drop in waste heat recovery below 70%. Both engine configurations showed the same results. It could therefore be concluded that the minimal operational load for optimum waste heat recovery lies at 70%. It is recommended to continue this research on other vessels working with the ENIRAM program.

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OrganisatieHZ University of Applied Sciences
OpleidingMaritiem Officier
AfdelingDomein Techniek
PartnersHolland America Line, Rotterdam
Datum2020-06-29
TypeBachelor
TaalEngels

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