The economic assessment of an integrated anaerobic digestion and gasification system for the exploitation of the residues from an urban sewage treatment plant is carried out. The obtained bio-fuels are used in a cogeneration unit to produce both electric and thermal energy. The analysis focuses on the water treatment plant of a touristic town, characterized by a highly variable number of inhabitants. Therefore, the amount of input biomass for the integrated plant results remarkably time dependent and the design accounts for the transient nature of the input. The performance of the integrated system is modelled by developing an ad-hoc dynamic library for the simulation of the energy conversion systems under the OpenModelica open source platform. The system's performance and economic assessment are modelled by means of equations and correlations that calculate the components' behaviour on a time dependent basis. The simulation demonstrates that the final wastes to landfill decrease by a 73% improving significantly the environmental impact of the plant. Furthermore, the proposed integrated system is able to produce the 25% of the electric energy required for the plant operation. Thus, the payback period of the integrated plant results to be lower than 3 years.
Economic assessment of an integrated waste to energy system for an urban sewage treatment plant: A numerical approach / Montorsi, L.; Milani, M.; Venturelli, Matteo. - In: ENERGY. - ISSN 0360-5442. - 158(2018), pp. 105-110. ((Intervento presentato al convegno 12th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES) tenutosi a Dubrovnik - Croatia nel 4 - 8/10/2017.
Data di pubblicazione: | 2018 |
Titolo: | Economic assessment of an integrated waste to energy system for an urban sewage treatment plant: A numerical approach |
Autore/i: | Montorsi, L.; Milani, M.; Venturelli, Matteo |
Autore/i UNIMORE: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.energy.2018.06.026 |
Rivista: | |
Volume: | 158 |
Pagina iniziale: | 105 |
Pagina finale: | 110 |
Codice identificativo ISI: | WOS:000445440500010 |
Codice identificativo Scopus: | 2-s2.0-85049330245 |
Citazione: | Economic assessment of an integrated waste to energy system for an urban sewage treatment plant: A numerical approach / Montorsi, L.; Milani, M.; Venturelli, Matteo. - In: ENERGY. - ISSN 0360-5442. - 158(2018), pp. 105-110. ((Intervento presentato al convegno 12th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES) tenutosi a Dubrovnik - Croatia nel 4 - 8/10/2017. |
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