Fuel cells for shipping: To meet on-board auxiliary demand and reduce emissions
Fuel cells for shipping: To meet on-board auxiliary demand and reduce emissions
The reduction of harmful emissions from the international shipping sector is necessary. On-board energy demand can be categorised as either: propulsion, or auxiliary services. Auxiliary services contribute a significant proportion of energy demand, with major loads including: compressors, pumps, and HVAC (heating, ventilation, and air-conditioning). Typically, this demand is met using the same fuel source as the main propulsion (i.e. fossil fuels). This study has analysed whether emissions from large scale ships could feasibly be reduced by meeting auxiliary demand by installing a hydrogen fuel cell, using data from an LNG tanker to develop a case study. Simulations have shown that for a capacity of 10 x 40ft containers of compressed hydrogen, the optimal fuel cell size would be 3 MW and this could save 10600 MWh of fossil fuel use, equivalent to 2343 t of CO2. Hence this could potentially decarbonise a significant proportion of shipping energy demand. Although there are some notable technical and commercial considerations, such as fuel cell lifetime and capital expenditure requirements. Results imply that if auxiliary loads could be managed to avoid peaks in demand, this could further increase the effectiveness of this concept.
Auxiliary services, Decarbonisation, Fuel cells, Hydrogen, Shipping
63-70
McKinlay, Charlie
70c883f4-2e6c-4790-a120-ee6caf41cb57
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
28 May 2021
McKinlay, Charlie
70c883f4-2e6c-4790-a120-ee6caf41cb57
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
McKinlay, Charlie, Turnock, Stephen and Hudson, Dominic
(2021)
Fuel cells for shipping: To meet on-board auxiliary demand and reduce emissions.
Energy Reports, 7 (Supplement 2), , [7].
(doi:10.1016/j.egyr.2021.02.054).
Abstract
The reduction of harmful emissions from the international shipping sector is necessary. On-board energy demand can be categorised as either: propulsion, or auxiliary services. Auxiliary services contribute a significant proportion of energy demand, with major loads including: compressors, pumps, and HVAC (heating, ventilation, and air-conditioning). Typically, this demand is met using the same fuel source as the main propulsion (i.e. fossil fuels). This study has analysed whether emissions from large scale ships could feasibly be reduced by meeting auxiliary demand by installing a hydrogen fuel cell, using data from an LNG tanker to develop a case study. Simulations have shown that for a capacity of 10 x 40ft containers of compressed hydrogen, the optimal fuel cell size would be 3 MW and this could save 10600 MWh of fossil fuel use, equivalent to 2343 t of CO2. Hence this could potentially decarbonise a significant proportion of shipping energy demand. Although there are some notable technical and commercial considerations, such as fuel cell lifetime and capital expenditure requirements. Results imply that if auxiliary loads could be managed to avoid peaks in demand, this could further increase the effectiveness of this concept.
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Accepted/In Press date: 17 February 2021
e-pub ahead of print date: 28 May 2021
Published date: 28 May 2021
Keywords:
Auxiliary services, Decarbonisation, Fuel cells, Hydrogen, Shipping
Identifiers
Local EPrints ID: 473581
URI: http://eprints.soton.ac.uk/id/eprint/473581
ISSN: 2352-4847
PURE UUID: e719980b-8ea8-4abb-bce1-d7da3dc9a9eb
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Date deposited: 24 Jan 2023 17:33
Last modified: 17 Mar 2024 02:41
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Author:
Charlie McKinlay
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