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Ventilation measures for heritage office buildings in temperate climate for improvement of energy performance and IEQ

Abdul Hamid, Akram LU ; Johansson, Dennis LU and Bagge, Hans LU (2020) In Energy and Buildings 211.
Abstract
Heritage buildings are usually culturally protected as well as naturally ventilated. As such, it is difficult to control the airflow, which depends on the temperature outdoors as well as the wind. This causes issues with the thermal comfort and the indoor air quality. In this study, status determinations were conducted for 12 heritage buildings with offices, across Sweden. Field measurements on temperature, relative humidity, CO2, and air change rates in the indoor climate, together with a survey with the occupants, confirmed these issues in these buildings. In addition, for two of the buildings, field measurements were used together with building energy performance simulations in order to determine the impact of two different ventilation... (More)
Heritage buildings are usually culturally protected as well as naturally ventilated. As such, it is difficult to control the airflow, which depends on the temperature outdoors as well as the wind. This causes issues with the thermal comfort and the indoor air quality. In this study, status determinations were conducted for 12 heritage buildings with offices, across Sweden. Field measurements on temperature, relative humidity, CO2, and air change rates in the indoor climate, together with a survey with the occupants, confirmed these issues in these buildings. In addition, for two of the buildings, field measurements were used together with building energy performance simulations in order to determine the impact of two different ventilation measures on the indoor environmental quality (IEQ) and the energy use. A mechanical ventilation system with heat recovery, hidden inside a chimneypot, was shown to reduce CO2 concentrations and potentially reduce the energy use by up to 39 kWh∙m-2. Dampers for the reduction of the air change rates out-of-hours, installed in the pathways for the natural airflow through chimney pots, were shown to potentially reduce the energy use by up to 11 kWh∙m-2. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ventilation measures, Heritage buildings, Energy use, Indoor air quality, Thermal comfort
in
Energy and Buildings
volume
211
article number
109822
publisher
Elsevier
external identifiers
  • scopus:85078795752
ISSN
1872-6178
DOI
10.1016/j.enbuild.2020.109822
language
English
LU publication?
yes
id
b7f97421-6b85-4409-b161-aa7eebb34f6b
date added to LUP
2019-10-02 09:25:58
date last changed
2020-12-29 03:14:07
@article{b7f97421-6b85-4409-b161-aa7eebb34f6b,
  abstract     = {Heritage buildings are usually culturally protected as well as naturally ventilated. As such, it is difficult to control the airflow, which depends on the temperature outdoors as well as the wind. This causes issues with the thermal comfort and the indoor air quality. In this study, status determinations were conducted for 12 heritage buildings with offices, across Sweden. Field measurements on temperature, relative humidity, CO2, and air change rates in the indoor climate, together with a survey with the occupants, confirmed these issues in these buildings. In addition, for two of the buildings, field measurements were used together with building energy performance simulations in order to determine the impact of two different ventilation measures on the indoor environmental quality (IEQ) and the energy use. A mechanical ventilation system with heat recovery, hidden inside a chimneypot, was shown to reduce CO2 concentrations and potentially reduce the energy use by up to 39 kWh∙m-2. Dampers for the reduction of the air change rates out-of-hours, installed in the pathways for the natural airflow through chimney pots, were shown to potentially reduce the energy use by up to 11 kWh∙m-2.},
  author       = {Abdul Hamid, Akram and Johansson, Dennis and Bagge, Hans},
  issn         = {1872-6178},
  language     = {eng},
  month        = {03},
  publisher    = {Elsevier},
  series       = {Energy and Buildings},
  title        = {Ventilation measures for heritage office buildings in temperate climate for improvement of energy performance and IEQ},
  url          = {http://dx.doi.org/10.1016/j.enbuild.2020.109822},
  doi          = {10.1016/j.enbuild.2020.109822},
  volume       = {211},
  year         = {2020},
}