Solar Energy Technologies in Sustainable Energy Action Plans of Italian Big Cities

Nastasi, Benedetto; Matteo, Umberto Di

doi:10.1016/j.egypro.2016.11.136

Cited by 41 publications

(18 citation statements)

References 19 publications

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“…All those technical considerations should be driven by urban management language and practices to be easily applied and integrated by policy-makers and city stakeholders [6]. New concepts such as territorial energy vocation [7] are applicable to approach the sustainability of harnessing OF.…”

Section: Introductionmentioning

confidence: 99%

Energy Contribution of OFMSW (Organic Fraction of Municipal Solid Waste) to Energy-Environmental Sustainability in Urban Areas at Small Scale

et al. 2017

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Abstract:Urban waste management is one of the most challenging issues in energy planning of medium and large cities. In addition to the traditional landfill method, many studies are investigating energy harvesting from waste, not as a panacea but as a foreseeable solution. Thermo-chemical conversion to biogas, or even bio-methane under certain conditions, could be an option to address this challenge. This study focuses on municipal solid waste conversion to biogas as a local energy supply for the cities. Three urban models and their subdivision into urban areas were identified along with a typical Organic Fraction of Municipal Solid Waste (OFMSW) matrix for each urban area. Then, an energy analysis was carried out to provide an optimization map for an informed choice by urban policy-makers and stakeholders. The results highlighted how the urban context and its use could affect the opportunity to produce energy from waste or to convert it in fuel. So, in this case, sustainability means waste turning from a problem to a renewable resource.

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Section: Introductionmentioning

confidence: 99%

Energy Contribution of OFMSW (Organic Fraction of Municipal Solid Waste) to Energy-Environmental Sustainability in Urban Areas at Small Scale

et al. 2017

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“…This latter option could be promising since complex technological combinations have just been taken into account from recent policy instruments, especially, for those ones related to solar energy deployment [20].…”

Section: Introductionmentioning

confidence: 99%

Feasibility analysis of a solar field for a closed unfired Joule-Brayton cycle

Rovense¹,

Pèrez²,

Amelio³

et al. 2017

IJHT

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A solar tower for a closed unfired Joule-Brayton cycle is considered. An analysis for four different plants rated power levels is performed. The system here analyzed comprises an intercooled and regenerated gas turbine engine, a concentrating solar tower with pressurized volumetric receiver and a heat exchanger to perform cooling of the working fluid, allowing its recirculation. The plant scheme enables an output adjustment, using an auxiliary compressor. A constant value of the solar receiver outlet temperature approximately of 800 °C, without use of fuel, in a large range of power, is obtained, guaranteeing a net thermal-to-electric efficiency around 40%. Thermoflex© has been used for the thermodynamics analysis and WinDelsol for solar field design and simulation (heliostat field and receiver). For the purposes of this work, it is assumed that the plant is located in Seville, Spain, with an annual direct normal irradiation (DNI) of 2,068 kWh /m2.

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“…Studies have analysed different strategies to introduce in urban planning tools in order to address climate change and subsequent risk disaster [42]. Generally, such instruments are based on three pillars: energy efficiency (EE), renewable energy sources (RES), and greenhouse gas emission reduction.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of the Effect of Geometry and Façade Materials on Urban District’s Equivalent Albedo

et al. 2017

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Urban Heat Island (UHI) is influenced by urban form, geometry, and the properties of surfaces. Retroreflective (RR) materials have been proposed as a countermeasure to UHI, thanks to their optical property of reflecting most of the incident solar energy back towards the same direction. In this paper, the effect of RR materials on urban districts was investigated. They were applied on building façades of urban districts with different urban forms and orientations. To this aim, an experimental model resembling urban districts with different geometries was built and RR materials on vertical surfaces were tested and compared to conventional construction materials with similar global reflectance. The trend of the instantaneous albedo was monitored during the day and a new parameter called "equivalent albedo" was used to demonstrate the effectiveness of the RR materials. The comparative analysis shows that the RR façades lead to an increase of the equivalent albedo for all of the investigated urban patterns. For a block pattern, the equivalent albedo increase is equal to 3%, while for canyon patterns it is equal to 7%. Results of energy evaluations show that the energy savings obtainable with the use of RR materials is comparable to the values of anthropogenic heat emissions in residential areas.

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Solar Energy Technologies in Sustainable Energy Action Plans of Italian Big Cities

Cited by 41 publications

References 19 publications

Energy Contribution of OFMSW (Organic Fraction of Municipal Solid Waste) to Energy-Environmental Sustainability in Urban Areas at Small Scale

Energy Contribution of OFMSW (Organic Fraction of Municipal Solid Waste) to Energy-Environmental Sustainability in Urban Areas at Small Scale

Feasibility analysis of a solar field for a closed unfired Joule-Brayton cycle

Experimental Analysis of the Effect of Geometry and Façade Materials on Urban District’s Equivalent Albedo

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