Iluminação Pública em Nós de Auto-Estradas

Abstract

The recurrence of energy resource management is imperative in recent days with the intention of creating a 'symbiosis' between the economic and ecological aspects and also ensuring the proper functioning of the service in question. This dissertation refers to this same theme, and in particular to the public lighting of auto-roads in the nodes of Nozelos, Custóias and Santo Tirso. The study carried out looked at the energy consumptions of each node, their respective tariffs and look for possible tariff solutions for each situation. As for the Node de Custóias, a study was carried out to replace the existing high-pressure sodium vapor lamps with LED luminaires, taking into account the costs of purchasing the luminaires and maintenance and also the time required for the investment recovery. In relation to the Santo Tirso Node, the study carried out took into account the replacement of current high pressure sodium vapor lamps with flow regulation by LED luminaires, also taking into account the inherent acquisition and maintenance costs and the expected time for the recovery of these expenses. Regarding the node of Nozelos, the possibility of installing a photovoltaic system was considered in order to be more independent of the electricity grid and the energy consumption expenses. Analyzes of the investment costs of this system and the monetary return time of this system were also carried out. Together with the cases analyzed, the theoretical assumptions and concepts that led to the understanding of the studies carried out were explored.