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Innovation Toward Sustainability Applied to a CO2 Refrigeration System Using Renewables—Solar, Wind, and Tidal Energy

In: Challenges and Innovation Opportunities in the Context of Sustainability, Industries 4.0 and 5.0

Author

Listed:
  • Arian Semedo

    (ISEL, Polytechnic University of Lisbon
    Instituto Politécnico de Setúbal, MARE-IPS, Marine and Environmental Sciences Centre)

  • João Garcia

    (UnIRE, ISEL, Polytechnic University of Lisbon)

Abstract

This article describes the impact of innovation solutions in a sustainability world, focusing on four feasible alternatives for an integrated refrigerated cold storage system for fish preservation. These alternatives range from integrated systems relying on grid electricity to autonomous systems generating electricity from renewable sources, incorporating various refrigeration facility configurations. The study aims to evaluate the energy efficiency, financial feasibility, and environmental impact of different solutions. Solution A utilizes two R134a refrigeration units powered by the public grid, while Solution B employs a transcritical CO2 system supported by grid electricity. Solution C integrates CO2 refrigeration with autonomous renewable energy, and Solution D utilizes CO2 for refrigeration with seawater heat exchange and autonomous renewable energy sources. Results indicate that Solution D is the most favorable, achieving a 5-year return on investment. The autonomous electricity production in Solution D reduces emissions by 95%. Despite an initial investment of €769 172.00, Solution C demonstrates financial viability, contributing to energy sustainability. Furthermore, this autonomous production reduces emissions by 360,697 kg CO2 compared to conventional systems, emphasizing the positive impact of local renewable energy integration.

Suggested Citation

  • Arian Semedo & João Garcia, 2026. "Innovation Toward Sustainability Applied to a CO2 Refrigeration System Using Renewables—Solar, Wind, and Tidal Energy," Springer Proceedings in Business and Economics, in: Teresa Morgado & João Calado & José Carlos de Sá & António Abreu & Ivan Galvão (ed.), Challenges and Innovation Opportunities in the Context of Sustainability, Industries 4.0 and 5.0, chapter 12, pages 159-171, Springer.
    • Handle: RePEc:spr:prbchp:978-3-032-16432-2_12
    DOI: 10.1007/978-3-032-16432-2_12
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