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

• DOI: 10.59490/moses.2023.663
• Publication Date: 2024-01-03T21:26:26Z
• Authors: Steffen Brötje; Markus Mühmer; Thorben Schwedt; Sören Ehlers; A. Phong Tran
• Keywords: Coefficient of performance

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