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Author Rossi, F.; Bonamente, E.; Nicolini, A.; Anderini, E.; Cotana, F.
Title A carbon footprint and energy consumption assessment methodology for UHI-affected lighting systems in built areas Type Journal Article
Year 2016 Publication Energy and Buildings Abbreviated Journal Energy and Buildings
Volume 114 Issue Pages 96-103
Keywords Remote Sensing; Energy
Abstract This paper investigates the effects of urban heat island (UHI) on outdoor lighting systems in terms of GHG emissions: a novel methodology is proposed to assess the carbon footprint (CF) change of lighting services in built areas caused by UHI-induced ΔT with particular focus on the evaluation of the energy consumption. The methodology can be applied also to other activities affected by the UHI, such as HVAC and transport systems. In particular, ΔCF was introduced by a two-fold approach: the quantification of the CF change due to UHI (as difference between CF in an UHI-affected case and CF for an UHI-less case) and the CF change produced by a 1 °C temperature change. A focus on LED lamps was developed: the lifetime of LEDs exponentially decreases with increasing temperature and the luminous flux exponentially decays with operation time. UHI (i.e. the increase in ambient temperature) affects the lifetime and the luminous flux of lamps producing higher energy consumption and higher replacement rates. Results showed that a positive ΔT due to UHI produces a positive ΔCF, which also becomes economically relevant in long-term scenarios. A case study was analyzed by applying the proposed methodology to Rome outdoor public lighting.
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ISSN 0378-7788 ISBN Medium
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Call Number GFZ @ kyba @ Serial 2483
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