WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performance
Waste Heat Recovery is one of the viable solutions to enhance the global efficiency of propulsion and energy systems in marine applications, thus mitigating and reducing the greenhouse gas emission from shipping. In this context, WHR systems based on supercritical CO2 Brayon Cycle are considered an...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-04-01
|
| Series: | Energy Conversion and Management: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590174525000479 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850133461072871424 |
|---|---|
| author | Fabrizio Reale Patrizio Massoli |
| author_facet | Fabrizio Reale Patrizio Massoli |
| author_sort | Fabrizio Reale |
| collection | DOAJ |
| description | Waste Heat Recovery is one of the viable solutions to enhance the global efficiency of propulsion and energy systems in marine applications, thus mitigating and reducing the greenhouse gas emission from shipping. In this context, WHR systems based on supercritical CO2 Brayon Cycle are considered an emerging and interesting technology. The aim of this study is to investigate the off-design behaviour of an integrated energy system based on a commercial gas turbine (LM2500+) and a bottoming partially preheated and recuperated sCO2 gas turbine, considering the variations in environmental conditions, that a vessel may encounter along commercial routes. In particular, an energy, environmental and exergetic numerical analysis has been carried out considering two different routes connecting Europe (the departure port is Naples in Southern Italy) to Kuala Lumpur (Malaysia), passing or not through the Suez Canal. The same routes have been considered in two different seasons (March 2024 and August/September 2024), to underline the effect of air and seawater temperatures on the overall performance of the integrated system. The steady-state thermodynamic analysis has been carried out using the commercial software Thermoflex. The results of the analysis highlighted that the overall efficiency of the system can vary up to 11 % in the same location, in different seasons and can reach a value closed to 49 %, dropping to 42 % in the worst-case scenario. At the same time, the efficiency of WHR can change up to 40–47 % in the same location under different environmental conditions considered. |
| format | Article |
| id | doaj-art-ca09fc86808d4eaa98d4bfcd7cae0923 |
| institution | OA Journals |
| issn | 2590-1745 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Conversion and Management: X |
| spelling | doaj-art-ca09fc86808d4eaa98d4bfcd7cae09232025-08-20T02:31:57ZengElsevierEnergy Conversion and Management: X2590-17452025-04-012610091510.1016/j.ecmx.2025.100915WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performanceFabrizio Reale0Patrizio Massoli1Corresponding author.; Institute of Sciences and Technologies for Sustainable Energy and Mobility, STEMS-CNR, 80125 Napoli, ItalyInstitute of Sciences and Technologies for Sustainable Energy and Mobility, STEMS-CNR, 80125 Napoli, ItalyWaste Heat Recovery is one of the viable solutions to enhance the global efficiency of propulsion and energy systems in marine applications, thus mitigating and reducing the greenhouse gas emission from shipping. In this context, WHR systems based on supercritical CO2 Brayon Cycle are considered an emerging and interesting technology. The aim of this study is to investigate the off-design behaviour of an integrated energy system based on a commercial gas turbine (LM2500+) and a bottoming partially preheated and recuperated sCO2 gas turbine, considering the variations in environmental conditions, that a vessel may encounter along commercial routes. In particular, an energy, environmental and exergetic numerical analysis has been carried out considering two different routes connecting Europe (the departure port is Naples in Southern Italy) to Kuala Lumpur (Malaysia), passing or not through the Suez Canal. The same routes have been considered in two different seasons (March 2024 and August/September 2024), to underline the effect of air and seawater temperatures on the overall performance of the integrated system. The steady-state thermodynamic analysis has been carried out using the commercial software Thermoflex. The results of the analysis highlighted that the overall efficiency of the system can vary up to 11 % in the same location, in different seasons and can reach a value closed to 49 %, dropping to 42 % in the worst-case scenario. At the same time, the efficiency of WHR can change up to 40–47 % in the same location under different environmental conditions considered.http://www.sciencedirect.com/science/article/pii/S2590174525000479Waste Heat RecoveryWHR for marine applicationsSCO2 gas turbineEffects of seawater temperature on WHR system performance |
| spellingShingle | Fabrizio Reale Patrizio Massoli WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performance Energy Conversion and Management: X Waste Heat Recovery WHR for marine applications SCO2 gas turbine Effects of seawater temperature on WHR system performance |
| title | WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performance |
| title_full | WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performance |
| title_fullStr | WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performance |
| title_full_unstemmed | WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performance |
| title_short | WHR systems based on sCO2 gas turbines for marine applications: The effect of route environmental conditions on performance |
| title_sort | whr systems based on sco2 gas turbines for marine applications the effect of route environmental conditions on performance |
| topic | Waste Heat Recovery WHR for marine applications SCO2 gas turbine Effects of seawater temperature on WHR system performance |
| url | http://www.sciencedirect.com/science/article/pii/S2590174525000479 |
| work_keys_str_mv | AT fabrizioreale whrsystemsbasedonsco2gasturbinesformarineapplicationstheeffectofrouteenvironmentalconditionsonperformance AT patriziomassoli whrsystemsbasedonsco2gasturbinesformarineapplicationstheeffectofrouteenvironmentalconditionsonperformance |