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|Title: ||Quantifying the effect of window opening on the measured heat loss of a test house|
|Authors: ||Jack, Richard|
Loveday, Dennis L.
Lomas, Kevin J.
|Keywords: ||Heat loss measurement|
|Issue Date: ||2015|
|Publisher: ||Leeds Beckett University|
|Citation: ||JACK, R. ... et al, 2015. Quantifying the effect of window opening on the measured heat loss of a test house. International SEEDS Conference 2015: Sustainable Ecological Engineering Design for Society, Leeds Beckett University, Leeds, UK, 17th-18th September 2015.|
|Abstract: ||Opening windows is a common method for controlling air temperature, moisture, air quality and odours in dwellings. Opening a window in winter will increase the heat loss from a house, the additional heat loss will depend on the size of the window opening and the length of time for which the window is open. However, window opening behaviour is unpredictable, varying widely between different dwellings and occupants making it difficult to incorporate into predictions of energy consumption.
This paper reports the results of an investigation to quantify the impact of window opening on the measured air tightness and total heat loss in a detached, timber framed test house built in the year 2000 to contemporary building standards, and located at Loughborough University. Blower door tests were used to measure the increase in ventilation caused by opening windows. The additional heat loss due to this ventilation was predicted using a simple model and then compared to the whole house heat loss as measured by a co-heating test. A linear relationship between window opening area and additional ventilation was found, independent of window location. This relationship was used to quantify the additional heat loss for a variety of window opening behaviours. The results show that window opening does not significantly increase heat loss rates in this particular house for all but the most extreme window opening behaviours. The implications of these results for different types of dwelling are discussed.|
|Description: ||This is a conference paper.|
|Version: ||Accepted for publication|
|Publisher Link: ||http://www.leedsbeckett.ac.uk/leeds-sustainability-institute/seeds-conference-2015/|
|Appears in Collections:||Conference Papers and Presentations (Architecture, Building and Civil Engineering)|
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