| Issue |
E3S Web Conf.
Volume 172, 2020
12th Nordic Symposium on Building Physics (NSB 2020)
|
|
|---|---|---|
| Article Number | 16012 | |
| Number of page(s) | 11 | |
| Section | Passive, active and NZEB buildings | |
| DOI | https://doi.org/10.1051/e3sconf/202017216012 | |
| Published online | 30 June 2020 | |
Measured and simulated energy performance of OLK NZEB with heat pump and energy piles in Hämeenlinna
1 Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
2 Aalto University, School of Engineering, Rakentajanaukio 4 A, Espoo FI-02150, Finland
3 Ruukki Construction Oy, Panuntie 11, Helsinki 00620, Finland
* Corresponding author: jevgeni.fadejev@taltech.ee
In this work, measured energy use of the building space heating, ventilation supply air heating, appliances and lighting is compared against simulated energy use modelled in IDA ICE. As built energy need and detailed measured input data is applied in building model calibration procedure. Calibrated building model energy performance is studied in both measured and test reference year climate conditions. Previously modelled as built plant automation and implemented control logics are compared against measured. Geothermal plant in this study consists of heat pump, solar collectors, boreholes and energy piles. Heat pump SCOP estimated by post processing according to heat pump manufacturer’s performance map is compared against measured SCOP on the monthly basis. Opinion on actual plant operation is given and energy performance improvement potential is quantified. Important parameters for successful building model calibration are presented. Building compliance with Finland NZEB requirements are assessed. The results show good match with measured energy use after the model calibration.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.