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.
Skip Nav Destination
SNAME 7th International Symposium on Ship Operations, Management and Economics
April 6–7, 2021
Virtual
Energy and Exergy Waste Heat Recovery Analysis of a Bulk Carrier Main Diesel Engine Equipped with Dual-Loop Organic Rankine Cycle
Elias A. Yfantis;
Elias A. Yfantis
University of Nicosia, Hellenic Naval Academy, and CMMI Cyprus Marine & Maritime Institute
Search for other works by this author on:
Efthymios G. Pariotis;
Efthymios G. Pariotis
Hellenic Naval Academy
Search for other works by this author on:
Theodoros C. Zannis;
Theodoros C. Zannis
Hellenic Naval Academy
Search for other works by this author on:
Konstantina Asimakopoulou
Konstantina Asimakopoulou
University of Nicosia
Search for other works by this author on:
Paper presented at the SNAME 7th International Symposium on Ship Operations, Management and Economics, Virtual, April 2021.
Paper Number:
SNAME-SOME-2021-019
Published:
April 05 2021
Citation
Yfantis , Elias A., Pariotis, Efthymios G., Zannis, Theodoros C., and Konstantina Asimakopoulou. "Energy and Exergy Waste Heat Recovery Analysis of a Bulk Carrier Main Diesel Engine Equipped with Dual-Loop Organic Rankine Cycle." Paper presented at the SNAME 7th International Symposium on Ship Operations, Management and Economics, Virtual, April 2021. doi: https://doi.org/10.5957/SOME-2021-019
Download citation file:
Sign in
Don't already have an account? Register
Personal Account
You could not be signed in. Please check your username and password and try again.
Could not validate captcha. Please try again.
Pay-Per-View Access
$35.00
Advertisement
32
Views
Advertisement
Suggested Reading
Advertisement