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Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions

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Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions. / Du, Liuliu; Leivo, Virpi ; Prasauskas, Tadas ; Turunen, Mari; Kiviste, Mihkel; Martuzevicius, Dainius; Haverinen-Shaughnessy, Ulla.

In: Energy Procedia, Vol. 78, 11.2015, p. 860-864.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Du, L, Leivo, V, Prasauskas, T, Turunen, M, Kiviste, M, Martuzevicius, D & Haverinen-Shaughnessy, U 2015, 'Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions', Energy Procedia, vol. 78, pp. 860-864. https://doi.org/10.1016/j.egypro.2015.11.008

APA

Du, L., Leivo, V., Prasauskas, T., Turunen, M., Kiviste, M., Martuzevicius, D., & Haverinen-Shaughnessy, U. (2015). Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions. Energy Procedia, 78, 860-864. https://doi.org/10.1016/j.egypro.2015.11.008

Vancouver

Du L, Leivo V, Prasauskas T, Turunen M, Kiviste M, Martuzevicius D et al. Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions. Energy Procedia. 2015 Nov;78:860-864. https://doi.org/10.1016/j.egypro.2015.11.008

Author

Du, Liuliu ; Leivo, Virpi ; Prasauskas, Tadas ; Turunen, Mari ; Kiviste, Mihkel ; Martuzevicius, Dainius ; Haverinen-Shaughnessy, Ulla. / Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions. In: Energy Procedia. 2015 ; Vol. 78. pp. 860-864.

Bibtex - Download

@article{464f714583e540e68c850297f9bb7873,
title = "Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions",
abstract = "We have conducted a project to develop a common protocol for indoor environmental quality (IEQ) assessment and to assess the effects of energy retrofits on IEQ. This paper focuses on thermal comfort, which was first assessed based on 2-month continuous monitoring in 16 multi-family buildings (94 apartments) in Finland and 20 buildings (96 apartments) in Lithuania during heating season before retrofits. In addition, corresponding data after retrofits were available from three buildings (17 apartments) from Finland and seven (30 apartments) from Lithuania. Two data loggers per apartment were placed to evaluate Tw and RHw (warm area), and Tc and RHc (coldest spot). Questionnaire data regarding housing quality and health were collected from the occupants. The results before retrofits indicated high Tw (>23 ºC) for a large proportion of time in Finnish apartments, whereas opposite trend was observed in Lithuania. After retrofits, proportion of time with high Tw was higher while proportion of apartments with low RHw was lower in Finland, whereas in Lithuania, about one fourth of the apartments had higher Tw and RHw, hence fulfilling the national guidelines. The average absolute humidity was higher after retrofits in both countries, especially in Lithuania (by 15{\%}). Occupant responses indicated improved thermal comfort. Therefore, potential effects of energy retrofits on occupants’ thermal environment and satisfaction were demonstrated, and simply adjusting indoor temperature could help to save energy. Further analysis is needed to include the effects of outdoor conditions, as well as overall IEQ to the assessment.",
keywords = "retrofits;",
author = "Liuliu Du and Virpi Leivo and Tadas Prasauskas and Mari Turunen and Mihkel Kiviste and Dainius Martuzevicius and Ulla Haverinen-Shaughnessy",
year = "2015",
month = "11",
doi = "10.1016/j.egypro.2015.11.008",
language = "English",
volume = "78",
pages = "860--864",
journal = "Energy Procedia",
issn = "1876-6102",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions

AU - Du, Liuliu

AU - Leivo, Virpi

AU - Prasauskas, Tadas

AU - Turunen, Mari

AU - Kiviste, Mihkel

AU - Martuzevicius, Dainius

AU - Haverinen-Shaughnessy, Ulla

PY - 2015/11

Y1 - 2015/11

N2 - We have conducted a project to develop a common protocol for indoor environmental quality (IEQ) assessment and to assess the effects of energy retrofits on IEQ. This paper focuses on thermal comfort, which was first assessed based on 2-month continuous monitoring in 16 multi-family buildings (94 apartments) in Finland and 20 buildings (96 apartments) in Lithuania during heating season before retrofits. In addition, corresponding data after retrofits were available from three buildings (17 apartments) from Finland and seven (30 apartments) from Lithuania. Two data loggers per apartment were placed to evaluate Tw and RHw (warm area), and Tc and RHc (coldest spot). Questionnaire data regarding housing quality and health were collected from the occupants. The results before retrofits indicated high Tw (>23 ºC) for a large proportion of time in Finnish apartments, whereas opposite trend was observed in Lithuania. After retrofits, proportion of time with high Tw was higher while proportion of apartments with low RHw was lower in Finland, whereas in Lithuania, about one fourth of the apartments had higher Tw and RHw, hence fulfilling the national guidelines. The average absolute humidity was higher after retrofits in both countries, especially in Lithuania (by 15%). Occupant responses indicated improved thermal comfort. Therefore, potential effects of energy retrofits on occupants’ thermal environment and satisfaction were demonstrated, and simply adjusting indoor temperature could help to save energy. Further analysis is needed to include the effects of outdoor conditions, as well as overall IEQ to the assessment.

AB - We have conducted a project to develop a common protocol for indoor environmental quality (IEQ) assessment and to assess the effects of energy retrofits on IEQ. This paper focuses on thermal comfort, which was first assessed based on 2-month continuous monitoring in 16 multi-family buildings (94 apartments) in Finland and 20 buildings (96 apartments) in Lithuania during heating season before retrofits. In addition, corresponding data after retrofits were available from three buildings (17 apartments) from Finland and seven (30 apartments) from Lithuania. Two data loggers per apartment were placed to evaluate Tw and RHw (warm area), and Tc and RHc (coldest spot). Questionnaire data regarding housing quality and health were collected from the occupants. The results before retrofits indicated high Tw (>23 ºC) for a large proportion of time in Finnish apartments, whereas opposite trend was observed in Lithuania. After retrofits, proportion of time with high Tw was higher while proportion of apartments with low RHw was lower in Finland, whereas in Lithuania, about one fourth of the apartments had higher Tw and RHw, hence fulfilling the national guidelines. The average absolute humidity was higher after retrofits in both countries, especially in Lithuania (by 15%). Occupant responses indicated improved thermal comfort. Therefore, potential effects of energy retrofits on occupants’ thermal environment and satisfaction were demonstrated, and simply adjusting indoor temperature could help to save energy. Further analysis is needed to include the effects of outdoor conditions, as well as overall IEQ to the assessment.

KW - retrofits;

U2 - 10.1016/j.egypro.2015.11.008

DO - 10.1016/j.egypro.2015.11.008

M3 - Article

VL - 78

SP - 860

EP - 864

JO - Energy Procedia

JF - Energy Procedia

SN - 1876-6102

ER -