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ECN publication
Title:
Grote Sint Laurenskerk te Alkmaar: de winterjas kan uit
 
Author(s):
 
Published by: Publication date:
ECN 1997
 
ECN report number: Document type:
ECN-C--97-084 ECN publication
 
Number of pages: Full text:
33 Download PDF  

Abstract:
The causes of the cold indoor climate of the title church have beeninvestigated and options to improve the indoor climate are suggested. It appeared that large air leakages, in particular in the roof construction had a strong cooling effect. The cold window surfaces caused additional heat losses. From the results of computer simulations it was concluded that extra heating capacity would have a contrary effect while increase of the temperature difference would result in stronger air flow. It is recommended to construct a separation between the ridge and the lower living environment in order to reduce the thermal flow as well as the draught. The existing floor heating supplies the largest part of the heat for the church which makes extra heating relatively simple. The church council decided to implement the changes as suggested by ECN. 4 refs.


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