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Probabilistic Estimation of the Energy Consumption and Performance of the Lighting Systems of Road Tunnels for Investment Decision Making

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  • Antonio Bracale

    (Department of Engineering, Università di Napoli “Parthenope”, 80143 Naples, Italy)

  • Pierluigi Caramia

    (Department of Engineering, Università di Napoli “Parthenope”, 80143 Naples, Italy)

  • Pietro Varilone

    (Department of Electrical and Information Engineering, Università di Cassino e del Lazio Meridionale, 03043 Cassino, Italy)

  • Paola Verde

    (Department of Electrical and Information Engineering, Università di Cassino e del Lazio Meridionale, 03043 Cassino, Italy)

Abstract

This paper presents a probabilistic model for supporting the process of decision making about the value of new lighting systems in existing road tunnels when some data and parameters are affected by uncertainty. The proposed model, which we have called Probabilistic Energy Screening of Tunnel (PrEST), accounts for both the technical performance and the economic objectives of the new lighting systems. The technical performance is described on an adequate (x, y) plane that was defined by two indices. The first index measured the consumption of electricity per kilometre of tunnel lengths; the second index measured the performance of the lighting systems per unit of illuminated area. The economic results were measured by the net present value of the savings and by the payback period. Both the terms account for initial capital investments, energy and maintenance costs. PrEST was applied to two real road tunnels in service in Italy showing that the statistics of the results can support a final decision in function of the business strategy.

Suggested Citation

  • Antonio Bracale & Pierluigi Caramia & Pietro Varilone & Paola Verde, 2019. "Probabilistic Estimation of the Energy Consumption and Performance of the Lighting Systems of Road Tunnels for Investment Decision Making," Energies, MDPI, vol. 12(8), pages 1-21, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:8:p:1488-:d:224319
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    References listed on IDEAS

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    1. Ferdinando Salata & Iacopo Golasi & Simone Bovenzi & Emanuele De Lieto Vollaro & Francesca Pagliaro & Lucia Cellucci & Massimo Coppi & Franco Gugliermetti & Andrea De Lieto Vollaro, 2015. "Energy Optimization of Road Tunnel Lighting Systems," Sustainability, MDPI, vol. 7(7), pages 1-17, July.
    2. Ferdinando Salata & Iacopo Golasi & Emiliano Bombelli & Emanuele De Lieto Vollaro & Fabio Nardecchia & Francesca Pagliaro & Franco Gugliermetti & Andrea De Lieto Vollaro, 2015. "Case Study on Economic Return on Investments for Safety and Emergency Lighting in Road Tunnels," Sustainability, MDPI, vol. 7(8), pages 1-14, July.
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