Energy and Exergy Waste Heat Recovery Analysis of a Bulk Carrier Main Diesel Engine Equipped with Dual-Loop Organic Rankine Cycle

Yfantis, Elias A. (University of Nicosia, Hellenic Naval Academy, and CMMI Cyprus Marine & Maritime Institute) | Pariotis, Efthymios G. (Hellenic Naval Academy) | Zannis, Theodoros C. (Hellenic Naval Academy) | Asimakopoulou, Konstantina (University of Nicosia)


The energy and the exergy performance of a dual-loop Organic Rankine Cycle (ORC), which harvests exhaust heat from a two-stroke slow-speed main marine diesel engine of a bulk carrier is examined herein. An energy analysis is adopted to calculate the energy flows to the components of the high-temperature (HT) and the low-temperature (LT) loops of the bottoming ORC and through them, to calculate the energy efficiency of the ORC and the generated power from both expanders. Also, an exergy analysis is implemented to predict the irreversibility rates of the components of both HT and LT loops of the ORC system. Various organic fluids are examined for the HT and the LT ORC loops and the optimum combination is selected based on the results of a parametric analysis. The effect of ambient conditions on the energetic and exergetic performance of the dual-loop ORC is examined. The energy analysis of the bottoming dual-loop ORC is projected to a specific mission operational profile of a bulk carrier for predicting the benefits in fuel cost saving and CO2 and SO2 emission reduction compared to conventional vessel operation.

Duplicate Docs Excel Report

None found

Similar Docs  Excel Report  more

Evaluating the Operations of an LNG Shipping Company with Business Process Modelling1.000OnePetro
Autonomous and Optimized Ship Routing1.000OnePetro
Risk Management of Tank Overflow on Tankers Carrying Multiple Grades of Crude Oil1.000OnePetro
Experimental Investigation of the Effect of Superhydrophobic Coating and Microbubbles Lubrication on the Resistance of a Scaled Ship1.000OnePetro
Legal and Technical Aspects of Responsible and Circular Marine Production1.000OnePetro
Practical Aspects of Propulsion Shaft Alignment1.000OnePetro
Data-Driven Ship Propulsion Modeling with Artificial Neural Networks1.000OnePetro
Effect of Low-Sulfur Fuel on Auxiliary Engine Combustion and Performance1.000OnePetro
Financial and Energy Markets: Effects on Shipping Industry1.000OnePetro
The Importance of Measuring the Performance of IMO Member States1.000OnePetro
Scrapping Probabilities and Committed CO2 Emissions of the International Ship Fleet1.000OnePetro
Examination of Sensitization on 5xxx Series Aluminum Alloy Sheets from Structural Parts of Hellenic Navy High-Speed Craft1.000OnePetro
What the Shipbuilding Future Holds in Terms of CAD/CAM/CIM Systems1.000OnePetro
Challenges in the Design of Propulsion Shafting1.000OnePetro