elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Case Study on the Heat Pump Integration for Enhanced Efficiency in Battery-Electric Short-Sea Ferries

Brötje, Steffen and Mühmer, Markus and Schwedt, Thorben and Ehlers, Sören and Tran, Anh Phong (2024) Case Study on the Heat Pump Integration for Enhanced Efficiency in Battery-Electric Short-Sea Ferries. In: 4th International Conference on Modelling and Optimisation of Ship Energy Systems. Modelling and Optimisation of Ship Energy Systems 2023, 2023-10-26 - 2023-10-27, Delft, Niederlande. doi: 10.59490/moses.2023.663.

[img] PDF
1MB

Official URL: https://dx.doi.org/10.59490/moses.2023.663

Abstract

This case study investigates the potential of incorporating water heat pumps into onboard thermal systems to utilize low-temperature waste heat for onboard heating and enhance the efficiency and economics of all-electric battery-driven ferries. We analysed a hybrid-driven roll-on/roll-off passenger ferry operating in the Baltic Sea, gathering data on vessel operation, power, and heat provision in low-temperature cycles. We integrated real-time measurement data, energy flow analysis, and thermodynamic calculations to draw conclusions for a potential battery retrofit scenario featuring an all-electric operation and a battery system capacity of 10 MWh. Our results indicate that the integration of heat pumps in battery-electric mode can cover more than 50 % of the onboard nominal heat capacity of HVAC systems, with a seasonal coefficient of performance (SCOP) of 3.5 during the heating season. The overall electric energy demand of the vessel during the 6-month heating period is reduced by approximately 8 % compared with direct-electric heating.

Item URL in elib:https://elib.dlr.de/202176/
Document Type:Conference or Workshop Item (Speech)
Title:Case Study on the Heat Pump Integration for Enhanced Efficiency in Battery-Electric Short-Sea Ferries
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Brötje, SteffenUNSPECIFIEDhttps://orcid.org/0000-0002-1904-2409151239554
Mühmer, MarkusUNSPECIFIEDhttps://orcid.org/0000-0003-4621-6870151239555
Schwedt, ThorbenUNSPECIFIEDhttps://orcid.org/0000-0002-2127-0494151802736
Ehlers, SörenUNSPECIFIEDhttps://orcid.org/0000-0001-5698-9354UNSPECIFIED
Tran, Anh PhongUNSPECIFIEDhttps://orcid.org/0000-0002-3365-5500UNSPECIFIED
Date:3 January 2024
Journal or Publication Title:4th International Conference on Modelling and Optimisation of Ship Energy Systems
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.59490/moses.2023.663
Status:Published
Keywords:Maritime heat pumps, battery-electric ships, low-temperature waste heat, energy efficiency, green maritime technologies
Event Title:Modelling and Optimisation of Ship Energy Systems 2023
Event Location:Delft, Niederlande
Event Type:international Conference
Event Start Date:26 October 2023
Event End Date:27 October 2023
Organizer:Delft University of Technology, Netherlands
HGF - Research field:Energy
HGF - Program:Energy System Design
HGF - Program Themes:Digitalization and System Technology
DLR - Research area:Energy
DLR - Program:E SY - Energy System Technology and Analysis
DLR - Research theme (Project):E - Energy System Technology
Location: Geesthacht
Institutes and Institutions:Institute of Maritime Energy Systems > Department Energy Converters and Systems
Deposited By: Brötje, Steffen
Deposited On:22 Jan 2024 07:28
Last Modified:24 Apr 2024 21:02

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.