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Abstract
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Given the large volume of global trade carried out by ship, it is important to pay attention to how fuel is used on the ship. Increasing day-to-day energy consumption and the limited availability of fossil fuels have made the use of fuels of paramount importance, and given that about 53% of world trade is by ship, it is important to plan for fuel consumption in ships. Due to the fact that the waste heat from the engine of the ship has the energy needed to recover. This study also increases efficiency, which in turn reduces fuel consumption and reduces emissions. And ultimately, it has reduced economic costs. In this research, sweet water and power have been produced by using the output gas of the ship's engine. The cycles used in this process has been the Organic Rankin Cycle and Kalina cycle. The model is designed in the process with a sub-cache of higher pressure turbine. The desalination system is of the type (Multi Stage Flash). This system has three stages, in each stage, with the warming and evaporation of sea water, some of the sweetened water is separated so that the salt in it is completely separated. In the design, it should be noted that this system has a temperature between 95. C and C105°C. ASPEN HYSYS software with version 8.3 has been used to simulate this process. Floyd package designed to simulate the Peng Robinson model. After simulating the energy and exergy analysis, the process is calculated for all currents to obtain the amount of exergy destruction in all equipment. The result is that the amount of production power from the Rankin Organic Cycle is 254.8 kW, for Kalina cycle is 162.6 kW the amount of water produced by the desalination system is 4899 (kg / h) and the most exergy destruction. among the equipment (except heat exchangers) in Turbine LP has the highest destruction of exergy and in heat exchangers of converter (HX-1) has the highest exergy destruction by analyzing the sensitivity and effect of temperature, mass flow and pressure para
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