Looking at International Maritime Organization (IMO) 2050 targets for shipping sector, that consist of reduction reenhouse gas (H) emissions from international shipping by at least 50% and carbon intensity by 70% (compared to 2018), it is clear that different low carbon technological solutions must be tackled to reduce vessels emissions in harbour and coastal areas. The combination of Waste Heat Recovery (WHR) on board, duly managed also thanks Thermal Energy Storage (TES) support and the promotion of zero carbon fuels (hydrogen) could be a suitable integration strategy. The present study is focused on the investigation of the best technological solution to implement a TES system on vessels to support both the operation of a hydrogen storage tank based on metal hydrides, to provide H2 to the fuel cells installed on board, and the heating and cooling systems. Starting from the identified boundary conditions, the work investigates both a latent heat TES system, and a sorption thermochemical TES to increase the utilization of on board WH resource. In particular, commercial phase change materials (PCM), namely Croda Therm 53 and Croda Therm 60, were studied to be implemented in the latent heat storage system. Up to forty heating/cooling cycles were performed on the materials to verify their stability. As thermochemical solution, a sorption-based TES system was investigated. Experimental analyses on composite sorbent based on sodium iodide (30Nal-S) were performed to verify if the composite sorbents are more stable that the pristine salts.

Investigation on a thermal energy storage system to maximize the use of vessels’ waste heat in port and during hoteling operations

Brancato V.
;
Fotia A.;Palomba V.;La Rosa D.;Costa F.;Frazzica A.
2024

Abstract

Looking at International Maritime Organization (IMO) 2050 targets for shipping sector, that consist of reduction reenhouse gas (H) emissions from international shipping by at least 50% and carbon intensity by 70% (compared to 2018), it is clear that different low carbon technological solutions must be tackled to reduce vessels emissions in harbour and coastal areas. The combination of Waste Heat Recovery (WHR) on board, duly managed also thanks Thermal Energy Storage (TES) support and the promotion of zero carbon fuels (hydrogen) could be a suitable integration strategy. The present study is focused on the investigation of the best technological solution to implement a TES system on vessels to support both the operation of a hydrogen storage tank based on metal hydrides, to provide H2 to the fuel cells installed on board, and the heating and cooling systems. Starting from the identified boundary conditions, the work investigates both a latent heat TES system, and a sorption thermochemical TES to increase the utilization of on board WH resource. In particular, commercial phase change materials (PCM), namely Croda Therm 53 and Croda Therm 60, were studied to be implemented in the latent heat storage system. Up to forty heating/cooling cycles were performed on the materials to verify their stability. As thermochemical solution, a sorption-based TES system was investigated. Experimental analyses on composite sorbent based on sodium iodide (30Nal-S) were performed to verify if the composite sorbents are more stable that the pristine salts.
2024
Istituto di Tecnologie Avanzate per l'Energia - ITAE
TES, TCM
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/526544
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