Nel seguente elaborato, viene presentato il lavoro di ricerca svolto all’interno del corso di dot... more Nel seguente elaborato, viene presentato il lavoro di ricerca svolto all’interno del corso di dottorato in Energetica e Fisica Tecnica. Le attività condotte hanno preso in esame le potenzialità dei sistemi di generazione distribuita di energia in campo civile, con particolare dettaglio per il settore residenziale. In una prima fase del lavoro si è condotta un’analisi della diffusione dei diversi sistemi di generazione distribuita sul territorio nazionale, evidenziando l’andamento nel tempo della numerosità di tali installazioni e sottolineando quali tecnologie hanno avuto maggiore sviluppo. Si è investigato sia sui sistemi non programmabili, sia sui sistemi di tipo programmabile. Successivamente, si è scelto di analizzare approfonditamente i sistemi di micro-cogenerazione. Nello specifico si è condotta una sperimentazione in scala di laboratorio su un prototipo di micro-cogeneratore a combustione interna. Il prototipo è stato testato in diverse condizioni di carico termico e con com...
Eco-fuels are a sustainable solution to face increasing global energy consumptions and GHG emissi... more Eco-fuels are a sustainable solution to face increasing global energy consumptions and GHG emissions. This work was firstly focused on available renewables assessment linked to a local dimension. Furthermore, identifying the potential Eco-fuels capability, it was discussed how the capital expenditure for infrastructures is associated with carbon avoidance costs. A coastal municipality and an inland one, located in Central Italy, are selected as case studies. In order to assess PV and agro-forestry residues availability, a GIS-based analysis was performed. In this framework, a new energy scenario, based on H 2 NG blends use and ligneous biomass conversion, was presented. Specifically, the hydrogen for NG enrichment was produced by renewable electricity, while biomass energy content was evaluated considering gasification process. Finally, the governmental incentive schemes incidence (in force for bioenergy and hypothesized for hydrogen) on investments economic sustainability and on in...
In order to accomplish significant primary energy saving and GHG (greenhouse gas) emissions reduc... more In order to accomplish significant primary energy saving and GHG (greenhouse gas) emissions reduction, CHP (combined heat and power) technology can be adopted largely for industrial and civil sectors. Waiting for the cutting-edge appliances (i.e. Fuel Cell) wide deployment, ICEs (internal combustion engines) fuelled with an environmentally-friendly fuel, such as H2NG (hydrogen-natural gas mixtures) could represent the bridge technology towards the forthcoming pure hydrogen economy. This paper deals with the results of an experimental campaign carried out on a Single Cylinder ICE, fuelled with NG (natural gas) and H2NG @ 15% vol. In detail, energy performances were assessed at rated and partial loads. From data analysis, it emerged that the electrical efficiency increased up to 2.28%, at the expense of the heat recovery one, having added hydrogen. Additionally, due to the higher water content in exhaust gas when H2NG is burned, it was investigated on how heat recovery efficiency has ...
Urban waste management is one of the most challenging issues in energy planning of medium and lar... more 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.
Nel seguente elaborato, viene presentato il lavoro di ricerca svolto all’interno del corso di dot... more Nel seguente elaborato, viene presentato il lavoro di ricerca svolto all’interno del corso di dottorato in Energetica e Fisica Tecnica. Le attività condotte hanno preso in esame le potenzialità dei sistemi di generazione distribuita di energia in campo civile, con particolare dettaglio per il settore residenziale. In una prima fase del lavoro si è condotta un’analisi della diffusione dei diversi sistemi di generazione distribuita sul territorio nazionale, evidenziando l’andamento nel tempo della numerosità di tali installazioni e sottolineando quali tecnologie hanno avuto maggiore sviluppo. Si è investigato sia sui sistemi non programmabili, sia sui sistemi di tipo programmabile. Successivamente, si è scelto di analizzare approfonditamente i sistemi di micro-cogenerazione. Nello specifico si è condotta una sperimentazione in scala di laboratorio su un prototipo di micro-cogeneratore a combustione interna. Il prototipo è stato testato in diverse condizioni di carico termico e con com...
Eco-fuels are a sustainable solution to face increasing global energy consumptions and GHG emissi... more Eco-fuels are a sustainable solution to face increasing global energy consumptions and GHG emissions. This work was firstly focused on available renewables assessment linked to a local dimension. Furthermore, identifying the potential Eco-fuels capability, it was discussed how the capital expenditure for infrastructures is associated with carbon avoidance costs. A coastal municipality and an inland one, located in Central Italy, are selected as case studies. In order to assess PV and agro-forestry residues availability, a GIS-based analysis was performed. In this framework, a new energy scenario, based on H 2 NG blends use and ligneous biomass conversion, was presented. Specifically, the hydrogen for NG enrichment was produced by renewable electricity, while biomass energy content was evaluated considering gasification process. Finally, the governmental incentive schemes incidence (in force for bioenergy and hypothesized for hydrogen) on investments economic sustainability and on in...
In order to accomplish significant primary energy saving and GHG (greenhouse gas) emissions reduc... more In order to accomplish significant primary energy saving and GHG (greenhouse gas) emissions reduction, CHP (combined heat and power) technology can be adopted largely for industrial and civil sectors. Waiting for the cutting-edge appliances (i.e. Fuel Cell) wide deployment, ICEs (internal combustion engines) fuelled with an environmentally-friendly fuel, such as H2NG (hydrogen-natural gas mixtures) could represent the bridge technology towards the forthcoming pure hydrogen economy. This paper deals with the results of an experimental campaign carried out on a Single Cylinder ICE, fuelled with NG (natural gas) and H2NG @ 15% vol. In detail, energy performances were assessed at rated and partial loads. From data analysis, it emerged that the electrical efficiency increased up to 2.28%, at the expense of the heat recovery one, having added hydrogen. Additionally, due to the higher water content in exhaust gas when H2NG is burned, it was investigated on how heat recovery efficiency has ...
Urban waste management is one of the most challenging issues in energy planning of medium and lar... more 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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Papers by Angelo Albo