![The sole responsibility for the content of this presentation lies with the authors. It does
not necessarily reflect the opinion of the European Union. Neither the EACI nor the
European Commission are responsible for any use that may be made of the information
contained therein.
Contract N°: IEE/13/763/ SI2.674877
March 2014 - February 2017
NeZeR Design Competition
ROMANIA
[Andrei Toma + TEKPOD SRL, Technical University Gh. Asachi, Iasi]
Sustainable Built Environment conference –SBE 16
Tallinn/Helsinki, 5-7 October 2016](https://image.slidesharecdn.com/verdi-ppt-160930113224/85/VERDI-OpenSource-11kWh-m2-Modular-envelope-NeZeR-1-320.jpg)
VERDI - OpenSource 11kWh/m2 Modular envelope NeZeR
- 1. The sole responsibility for the content of this presentation lies with the authors. It does not necessarily reflect the opinion of the European Union. Neither the EACI nor the European Commission are responsible for any use that may be made of the information contained therein. Contract N°: IEE/13/763/ SI2.674877 March 2014 - February 2017 NeZeR Design Competition ROMANIA [Andrei Toma + TEKPOD SRL, Technical University Gh. Asachi, Iasi] Sustainable Built Environment conference –SBE 16 Tallinn/Helsinki, 5-7 October 2016
- 2. What challenge? • Tower flats, Basement, 4 floors, terrace • 1968, Never refurbished • Self owned, between 20 landlords • Central heating: self owned • Energy consumption, space heating 212.9 kWh/sqm • Energy consumption, domestic hot water 66.33 kWh/sqm • Energy consumption, other 10.99 kWh/sqm
- 3. What challenge? • To gain energy efficiency performance through embeded renewable energy soruces • To refurbish the central heating distribution system on a horizontal level • To reduce the primary heating energy consuption to less than 90 kWh/sqm • The building is a standard cube with inset balconies • The building is in climate zone II • Constant shaddows in lower floors
- 4. Renovation concept • Walls 300mm insulation U-Value: 0.094W/m2K, roof 460mm U-Value 0.095W/m2K, ground floor 520mm U-Value 0.131W/m2k • HVAC : 2x Venco VRH • Solar PV + Solar Thermic panels installed on 284m2 output of 57.6 kWh/m2
- 5. Proposed technical solutions Original building After NZEBR Walls U=1.66 W/m2K U=0.094 W/m2K Basement U=2.5 W/m2K U=0.131 W/m2K Roof U=0.877 U=0.095 W/m2K Windows Unknown U=0.80 W/m2K HVAC 290.22 kWh/m2 82.5 kWh/m2 RES None 57.6 kWh/m2
- 6. Environmental aspects – Materials selected •Glulam •Mineral wool •BASF NEOPOR
- 7. User aspects • Space extension: balcony, bigger living room, lift • Self controlled HVAC, based on user behaviour through smart appliances • Failsafe systems to ensure security of thermal appliances for overheating and underheating • 3 Months renovation process with little disruption over residents • Residents to be informed through a portal with the current stages of design, being updated daily which include expenditure, current status on a timeline and next in line for processes.
- 9. Market appeal • The building stock of Romania, with a similar shape is around 157,000 • Technologies used are produced in a mass market environment • A prefab solution, to ease installation and disruption • Risk Free • B2B prefab model receives discounts on bulk sales • Investment of €542,953 • 30 years Life cycle cost €810,740 • Investment €50 / person / month • Sustainable derivatives options for investors
- 10. Strengths and weaknesses Strong points of the renovation concept: •Lightweight envelope, ease of transportation •Performant materials, high energy savings •Compact, expandable easy to multiply Weaknesses / aspects to be improved: •High cost for low income families •Lack of renovation funding and political instability in Romania •Lack of skilled labourfocer due to recent tallent immigration to neibouring countries