Energy monitoring of low-energy houses in northern Poland Part two: Verification of the thermal quality of cooling baffles

8th International Research-Technical Conference on the Problems of Designing, Construction and Use of Low Energy Housing

土木建筑工程

Stachniewicz, R.^1 ; wicicki, A.^1 ; Sadowska, B.^1 ; Sarosiek, W.^1

Faculty of Civil and Environmental Engineering, Bialystok University of Technology, 45E Wiejska Street, Bialystok

15-351, Poland^1

关键词: Airtight ness;    Energy demands;    Energy monitoring;    Low energy buildings;    Low-energy house;    Reduced energy;    Thermal bridge;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/415/1/012007/pdf
DOI  :  10.1088/1757-899X/415/1/012007

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

This article is the second of a two-part cycle describing the assessment of some characteristics of selected buildings with a reduced energy demand that were built in northeastern and central Poland. Two low-energy buildings (built in 1999-2001) and several buildings of NF15 and NF40 class were analyzed. Projected demand indicators for useful energy of these buildings range from 10.4 and 14.6 kWh/(m2•yr) for NF40 to 30,2 kWh/(m2•yr) for NF15. One the most important factors affecting the efficiency of low-energy buildings are: thermal quality of the housing and its tightness. This paper presents the results of the tests carried out to verify design assumptions, in particular thermal insulation of partitions, weight of thermal bridges and air tightness and its impact on the energy demand for heating and ventilation.