PSI - Issue 77

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2026) 000–000 Available online at www.sciencedirect.com

www.elsevier.com/locate/pr ocedia

Procedia Structural Integrity 77 (2026) 498–511

© 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Abstract The preservation of perishable foods, particularly fish, relies on cold storage systems that maintain optimal temperature and humidity across the supply chain. Conventional facilities often face challenges due to high energy demand, operational costs, and carbon emissions. This study examines a cold storage solution in Tarrafal, Santiago, Cape Verde, utilizing renewable energy sources such as wind, solar, and tidal power. Four configurations are analyzed for energy efficiency, economic feasibility, and environmental impact. Solution A employs R134a refrigeration powered by the grid, while Solution B uses a transcritical CO 2 system, also grid powered. Solution C integrates CO 2 refrigeration with renewable energy, and Solution D enhances this with seawater heat exchange. Results show Solution D reduces carbon emissions by 90% (15,880 kg CO 2 eq annually) and achieves a return on investment within five years. Solution C, though costlier initially, also contributes to long-term sustainability, cutting emissions by over 600,000 kg CO 2 compared to grid-powered systems. These findings highlight the potential of renewable energy integration in coastal cold storage, supporting sustainable energy use and environmental preservation. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Keywords: Sustainable refrigeration;Solar Energy; Wind Energy; Tidal Energy. International Conference on Structural Integrity Integration of Renewable Energy for Carbon-Neutral Fish Cold Storage: A Sustainable Approach Leveraging Solar, Wind, and Tidal Resources in Coastal Systems Arian Semedo a,b* João Garcia b,c,d a Department of Mechanical and Industrial Engineering (DEMI), Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal b UnIRE, ISEL, Polytechnic University of Lisbon, Rua Conselheiro Emídio Navarro 1, 1959-007 Lisbon, Portugal c Lisbon Superior Institute of Engineering, R. Conselheiro Emídio Navarro 1, 1959-007 Lisbon, Portugal d MARE-IPS, Marine and Environmental Sciences Centre, Escola Superior de Tecnologia, Instituto Politécnico de Setúbal, Campus do IPS – Estefanilha, 2910-761, Setúbal, Portugal *Corresponding author: aa.semedo@campus.fct.unl.pt

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers 10.1016/j.prostr.2026.01.063

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by nc-nd/4.0) Peer-review under responsibility of ICSI organizers