Comprehensive Energy Renovation of Two Danish Heritage Buildings within IEA SHC Task 59
Abstract
:1. Introduction
2. Renovation Project Descriptions
2.1. Ryesgade 30
2.2. The Osram Building
- To energy renovate a former industrial building, now in use as a culture centre, by utilizing daylight and combining mechanical and natural ventilation to improve the indoor climate;
- To minimize energy consumption by improving the thermal envelope and utilizing energy saving lighting;
- To minimize the resources required (and the CO2-emissions) during both construction and upkeep.
3. Calculated and Measured Energy Savings
3.1. Ryesgade 30
3.2. The Osram Building
4. Detailed Analysis
4.1. Ryesgade 30—Ventilation Systems and Window Solutions
- Ventilation noise (valves and unit noise);
- The cooker hood works poorly;
- Residents do not understand how the ventilation (and the system) works.
4.2. The Osram Building—Daylighting Technologies
5. Lessons Learned
5.1. Ryesgade 30
5.2. The Osram Building
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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U-Value (W/m2K) | ||
---|---|---|
Construction | Before | After |
Brick wall (mean) | 1.40 | 0.37 |
Windows | 4.20 | 0.89 |
Floor over basement | 1.50 | 0.30 |
Roof | 0.52 | 0.15 |
System | ||
Ventilation | Natural | Mechanical with heat recovery |
Photovoltaics | None | 80 m2 |
U-Value (W/m2K) | ||
---|---|---|
Construction | Before | After |
Roof | 0.20–0.30 | 0.20–0.30 |
Deck above the gate | 3.90 | 0.09 |
Walls | 1.65–3.73 | 0.09 |
Windows | 2.70–5.90 | 1.20 |
Doors | 1.00–5.20 | 1.00–1.50 |
Slab floor and basement deck | 0.57–2.37 | 0.57–2.37 |
Stairwell A | Stairwell B | Stairwell C | |
---|---|---|---|
Electricity consumption (kWh/m2) | 9.9 | 2.4 | 2.3 |
# | Window Solution | U (W/m2K) | g [-] | Eref (kWh/m2 per Year) | LT (-) |
---|---|---|---|---|---|
1 | 1 + 1 + 1 secondary glazing (refurb.) | 1.08 | 0.37 | −26 | 0.37 |
2 | 1 + 1 secondary glazing (refurb.) | 1.62 | 0.44 | −58 | 0.45 |
3 | 1 + 1 coupled frame (refurb.) | 1.76 | 0.44 | −73 | 0.45 |
4 | 1 + 2 coupled frame (new) | 1.13 | 0.29 | −45 | 0.39 |
# | Description | Price | Total 2-Pane window | Total 3-Pane Window |
---|---|---|---|---|
1 | Repair and paint Secondary glazing 2 layers | 467 1163 | 1630 | |
2 | Repair and paint Secondary glazing 1 layer | 467 1100 | 1567 | |
3 | Repair and paint Coupled frame 1 + 1 | 467 1679 | 2146 | |
4 | New window 2 + 1 Installation | 1193 380 | 1573 |
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Rose, J.; Thomsen, K.E. Comprehensive Energy Renovation of Two Danish Heritage Buildings within IEA SHC Task 59. Heritage 2021, 4, 2746-2762. https://doi.org/10.3390/heritage4040155
Rose J, Thomsen KE. Comprehensive Energy Renovation of Two Danish Heritage Buildings within IEA SHC Task 59. Heritage. 2021; 4(4):2746-2762. https://doi.org/10.3390/heritage4040155
Chicago/Turabian StyleRose, Jørgen, and Kirsten Engelund Thomsen. 2021. "Comprehensive Energy Renovation of Two Danish Heritage Buildings within IEA SHC Task 59" Heritage 4, no. 4: 2746-2762. https://doi.org/10.3390/heritage4040155