Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses. / Hirvonen, Janne; Jokisalo, Juha; Heljo, Juhani; Kosonen, Risto.

julkaisussa: Energies, Vuosikerta 12, Nro 22, 4395, 19.11.2019.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Bibtex - Lataa

@article{9ee799edd49e4b62a8db5ab8e32bb29a,
title = "Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses",
abstract = "To mitigate the effects of climate change, the European Union calls for major carbon emission reductions in the building sector through a deep renovation of the existing building stock. This study examines the cost-effective energy retrofit measures in Finnish detached houses. The Finnish detached house building stock was divided into four age classes according to the building code in effect at the time of their construction. Multi-objective optimization with a genetic algorithm was used to minimize the life cycle cost and CO2 emissions in each building type for five different main heating systems (district heating, wood/oil boiler, direct electric heating, and ground-source heat pump) by improving the building envelope and systems. Cost-effective emission reductions were possible with all heating systems, but especially with ground-source heat pumps. Replacing oil boilers with ground-source heat pumps (GSHPs), emissions could be reduced by 79{\%} to 92{\%} across all the studied detached houses and investment levels. With all the other heating systems, emission reductions of 20{\%} to 75{\%} were possible. The most cost-effective individual renovation measures were the installation of air-to-air heat pumps for auxiliary heating and improving the thermal insulation of external walls.",
keywords = "deep renovation, energy retrofit, detached house, multi-objective optimization, greenhouse gas emissions, heat pump, genetic algorithm",
author = "Janne Hirvonen and Juha Jokisalo and Juhani Heljo and Risto Kosonen",
year = "2019",
month = "11",
day = "19",
doi = "10.3390/en12224395",
language = "English",
volume = "12",
journal = "Energies",
issn = "1996-1073",
publisher = "MDPI AG",
number = "22",

}

RIS - Lataa

TY - JOUR

T1 - Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses

AU - Hirvonen, Janne

AU - Jokisalo, Juha

AU - Heljo, Juhani

AU - Kosonen, Risto

PY - 2019/11/19

Y1 - 2019/11/19

N2 - To mitigate the effects of climate change, the European Union calls for major carbon emission reductions in the building sector through a deep renovation of the existing building stock. This study examines the cost-effective energy retrofit measures in Finnish detached houses. The Finnish detached house building stock was divided into four age classes according to the building code in effect at the time of their construction. Multi-objective optimization with a genetic algorithm was used to minimize the life cycle cost and CO2 emissions in each building type for five different main heating systems (district heating, wood/oil boiler, direct electric heating, and ground-source heat pump) by improving the building envelope and systems. Cost-effective emission reductions were possible with all heating systems, but especially with ground-source heat pumps. Replacing oil boilers with ground-source heat pumps (GSHPs), emissions could be reduced by 79% to 92% across all the studied detached houses and investment levels. With all the other heating systems, emission reductions of 20% to 75% were possible. The most cost-effective individual renovation measures were the installation of air-to-air heat pumps for auxiliary heating and improving the thermal insulation of external walls.

AB - To mitigate the effects of climate change, the European Union calls for major carbon emission reductions in the building sector through a deep renovation of the existing building stock. This study examines the cost-effective energy retrofit measures in Finnish detached houses. The Finnish detached house building stock was divided into four age classes according to the building code in effect at the time of their construction. Multi-objective optimization with a genetic algorithm was used to minimize the life cycle cost and CO2 emissions in each building type for five different main heating systems (district heating, wood/oil boiler, direct electric heating, and ground-source heat pump) by improving the building envelope and systems. Cost-effective emission reductions were possible with all heating systems, but especially with ground-source heat pumps. Replacing oil boilers with ground-source heat pumps (GSHPs), emissions could be reduced by 79% to 92% across all the studied detached houses and investment levels. With all the other heating systems, emission reductions of 20% to 75% were possible. The most cost-effective individual renovation measures were the installation of air-to-air heat pumps for auxiliary heating and improving the thermal insulation of external walls.

KW - deep renovation

KW - energy retrofit

KW - detached house

KW - multi-objective optimization

KW - greenhouse gas emissions

KW - heat pump

KW - genetic algorithm

UR - http://www.scopus.com/inward/record.url?scp=85076020206&partnerID=8YFLogx

U2 - 10.3390/en12224395

DO - 10.3390/en12224395

M3 - Article

VL - 12

JO - Energies

JF - Energies

SN - 1996-1073

IS - 22

M1 - 4395

ER -

ID: 39381734