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Ventilative cooling as a solution for highly insulated buildings in cold climate

Alonso, Maria Justo; Mathisen, Hans Martin; Collins, Rose
Peer reviewed, Journal article
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URI
http://hdl.handle.net/11250/2381577
Date
2015
Metadata
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  • Institutt for energi og prosessteknikk [4541]
  • Publikasjoner fra CRIStin - NTNU [41955]
Original version
Energy Procedia 2015, 78:3013-3018   10.1016/j.egypro.2015.11.707
Abstract
One of the downsides of super insulated building envelopes is their facility to be overheated needing removal of excess heat. The removal of surplus heat is often done by mechanical cooling. However, energy consumption related to mechanical cooling is incompatible with achieving zero energy buildings.

This paper compares the application of hybrid window ventilation through validated IDA ICE simulations of an already existing kindergarten in Norway to simulations of the same kindergarten using DCV and VAV (both without cooling) and exhaust fan and only window controlled natural ventilation(these two last with night set back allowed). Results show important energy savings when using ventilative cooling as outcome of the low outdoor temperatures and the same applies for night cooling. Regarding thermal environment and indoor temperatures, for really warm days, it is hard to sustain acceptable temperatures without the use of night set back or mechanical cooling.

Keywords:

Ventilative cooling;

Windows controlled ventilation;

Night cooling;

Simulation;

IAQ;

Thermal comfort
Publisher
Elsevier
Journal
Energy Procedia

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