000075482 001__ 75482
000075482 005__ 20200117221614.0
000075482 0247_ $$2doi$$a10.1016/j.enconman.2018.07.045
000075482 0248_ $$2sideral$$a108095
000075482 037__ $$aART-2018-108095
000075482 041__ $$aeng
000075482 100__ $$0(orcid)0000-0002-0787-8938$$aHerrando, M.$$uUniversidad de Zaragoza
000075482 245__ $$aTechnoeconomic modelling and optimisation of solar combined heat and power systems based on flat-box PVT collectors for domestic applications
000075482 260__ $$c2018
000075482 5060_ $$aAccess copy available to the general public$$fUnrestricted
000075482 5203_ $$aWe investigate solar combined heat and power (S-CHP) systems based on hybrid photovoltaic-thermal (PVT) collectors for the simultaneous provision of domestic hot water (DHW), space heating (SH) and power to single-family homes. The systems include PVT collectors with a polycarbonate flat-box structure design, a water storage tank, an auxiliary heater and a battery storage subsystem. A methodology is developed for modelling the energetic and economic performance of such PVT-based S-CHP systems, which is used to optimally size and operate systems for covering the energy demands of single-family reference households at three selected locations: Athens (Greece), London (UK) and Zaragoza (Spain). The results show that optimised systems are capable of covering ~65% of the annual household electricity demands in Athens, London and Zaragoza when employing 14.0, 17.0 and 12.4 m2 collector array areas respectively, while also covering a significant fraction of the thermal energy demands in Athens (~60%) and Zaragoza (~45%); even in London, almost 30% of the reference household''s thermal demand is covered by such a system. A corresponding economic analysis reveals that, despite the suitability of Athens’ weather conditions for implementing such solar-energy systems, the payback time (PBT) of the optimised S-CHP system in Athens is 15.6 years in contrast to the 11.6 years predicted for Zaragoza, due to the lower electricity prices in Greece. On the other hand, the high carbon emission factor of the electricity grid in Greece makes these systems particularly promising at this location. Specifically, the investigated systems have the potential to displace 3.87, 1.65 and 1.54 tons of CO2 per year in Athens, London and Zaragoza, when substituting the conventional means for household energy provision (i.e. grid electricity and gas-fired boilers). Furthermore, it is demonstrated that the optimised systems outperform benchmark equivalent systems comprising conventional sheet-and-tube PVT collectors in all studied cases, by covering similar or slightly (up to 3%) higher fractions of the household electrical and thermal demands with 9–11% lower PBTs, and that PV-only solutions displace 3.56, 1.21, 1.22 tCO2/year (up to ~20–25% lower) for the same area. Overall, the results suggest that the newly proposed polymeric flat-box PVT collector designs are an improved economic proposition over their conventional equivalents, but that the cost of this technology still remains high relative to PV and that if decarbonisation is a desirable goal, especially in high population-density regions with space restrictions, it is important to consider how to promote this technology.
000075482 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000075482 590__ $$a7.181$$b2018
000075482 591__ $$aENERGY & FUELS$$b12 / 103 = 0.117$$c2018$$dQ1$$eT1
000075482 591__ $$aTHERMODYNAMICS$$b2 / 60 = 0.033$$c2018$$dQ1$$eT1
000075482 591__ $$aMECHANICS$$b3 / 134 = 0.022$$c2018$$dQ1$$eT1
000075482 592__ $$a2.73$$b2018
000075482 593__ $$aEnergy Engineering and Power Technology$$c2018$$dQ1
000075482 593__ $$aRenewable Energy, Sustainability and the Environment$$c2018$$dQ1
000075482 593__ $$aNuclear Energy and Engineering$$c2018$$dQ1
000075482 593__ $$aFuel Technology$$c2018$$dQ1
000075482 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000075482 700__ $$aRamos, A.
000075482 700__ $$aFreeman, J.
000075482 700__ $$0(orcid)0000-0001-6183-0831$$aZabalza, I.$$uUniversidad de Zaragoza
000075482 700__ $$aMarkides, C.N.
000075482 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000075482 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000075482 773__ $$g175 (2018), 67-85$$pEnergy convers. manag.$$tEnergy Conversion and Management$$x0196-8904
000075482 8564_ $$s1921549$$uhttps://zaguan.unizar.es/record/75482/files/texto_completo.pdf$$yVersión publicada
000075482 8564_ $$s93875$$uhttps://zaguan.unizar.es/record/75482/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000075482 909CO $$ooai:zaguan.unizar.es:75482$$particulos$$pdriver
000075482 951__ $$a2020-01-17-21:50:10
000075482 980__ $$aARTICLE