Optimization of emission reducing energy retrofits in Finnish apartment buildings

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

78 Lataukset (Pure)

Abstrakti

This study examined the cost-optimality of energy renovation on Finnish apartment buildings of different ages, built according to different energy performance requirements. Multi-objective optimization was utilized to minimize both CO2 emissions and life cycle cost (LCC). IDA-ICE simulations were
performed to obtain the hourly heating demand of the buildings. Four building age classes and three heating systems (district heating, exhaust air heat pump and ground-source heat pump) were separately optimized. With district heating, it was possible to reduce emissions by 11%, while also reducing LCC. With heat
pumps cost-savings could be achieved while reducing emissions by over 49%. With maximal (not cost-effective) investments, emissions could be reduced by more than 70% in all examined cases. In all cases, the cheapest solutions included solar electricity and sewage heat recovery. In old buildings, window upgrades and additional roof insulation were cost-effective. In new buildings, demand-based ventilation was included in all optimal solutions.
AlkuperäiskieliEnglanti
OtsikkoCLIMA 2019 Conference, 26th-29th May, 2019, Bucharest, Romania
KustantajaEDP SCIENCES
Sivumäärä6
DOI - pysyväislinkit
TilaJulkaistu - 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaREHVA World Congress - Bucharest, Romania
Kesto: 26 toukokuuta 201929 toukokuuta 2019
Konferenssinumero: 13

Julkaisusarja

NimiE3S web of conferences
KustantajaEDP Sciences
Vuosikerta111
ISSN (painettu)2555-0403
ISSN (elektroninen)2267-1242

Conference

ConferenceREHVA World Congress
LyhennettäCLIMA
MaaRomania
KaupunkiBucharest
Ajanjakso26/05/201929/05/2019

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  • Siteeraa tätä

    Hirvonen, J., Jokisalo, J., Heljo, J., & Kosonen, R. (2019). Optimization of emission reducing energy retrofits in Finnish apartment buildings. teoksessa CLIMA 2019 Conference, 26th-29th May, 2019, Bucharest, Romania [03002] (E3S web of conferences; Vuosikerta 111). EDP SCIENCES. https://doi.org/10.1051/e3sconf/201911103002