Passive buildings in romanian climate some practical achievements and comments resulting from their exploitation

Author : Ph. D. Arch. Ruxandra CRUTESCU PASSIVHAUS ECOARCHITECT [email protected]

1. 2. 3. 4.

Concept of passive house PH in Burlusi PH in Bragadiru – Amvic office building Conclusion

First passive house builded in Romania in 2004 is

certified from Passivhaus Institut Darmstadt Germany l

Burlushi Ciofringeni Arges County, Romania

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2014 Burlusi Passive House Ciofrangeni – Arges County

FIRST ROMANIAN PASSIVE OFFICE BUILDING BRAGADIRU Ilfov

Location & Site plan Thermal envelope

FIRST ROMANIAN PASSIVE OFFICE BUILDING BRAGADIRU Ilfov

Heat transfer 0,22 W/m2K Thermal bridges elimination Neopor icf for low-energy buildings

1 amvic icf = 0,5 sqm wall

marc by

ICF have the CE Mark Aquired the ISO integrated system Corner duble insulation

18 cm NEOPOR density 24 kg/mc

Heat transfer 0,22 W/m2K

marc for

Heat transfer 0,22 W/m2K by amvic, INSULATED CONCRETE FORMS, made in ROMANIA

PASSIVE ecological and energy efficient BUILDINGS

FIRST ROMANIAN PASSIVE OFFICE BUILDING BRAGADIRU Ilfov

ACADEMIA ROMANA Bucuresti - 15 martie 2013

FIRST ROMANIAN PASSIVE OFFICE BUILDING BRAGADIRU Ilfov

Earth-Air heatexchanger – awaduct Rehau

FIRST ROMANIAN PASSIVE OFFICE BUILDING BRAGADIRU Ilfov ROMANIA Energie Economisita (kW)

Energy Rec/Prod; HP3; 17%

Energy Rec/Prod; HS; 16% Energy Rec/Prod; PH; 17%

Energy Rec/Prod; HP2; 17% Energy Rec/Prod; HP1; 17%

Energy Rec/Prod;RHS; 16%

HS PH RHS HP1 HP2 HP3

FIRST ROMANIAN PASSIVE OFFICE BUILDING BRAGADIRU Ilfov

Controled ventilation system with energy recovery

Controled ventilation Instalation with energy recovery

FIRST ROMANIAN PASSIVE OFFICE BUILDING BRAGADIRU Ilfov

Solar vaccuum panels for warm water preparation

Solar Vacuum Panels for warm water preparation

Energetic equipment

Source – Nicolae Rotar PhD Paper

Solar Vaccuum Pannels for warm water preparation

Excellent Interior Confort

interior equipment energy class A and A+

PHPP

Kennwerte mit mit Bezug Bezug auf auf Energiebezugsfläche Energiebezugsfläche Kennwerte Energiebezugsfläche: Energiebezugsfläche:

2085.9 2085.9 Verwendet: Verwendet:

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m22 m Monatsverfahren Monatsverfahren

PH-Zertifikat: PH-Zertifikat:

kWh/(m22a) a) kWh/(m

15 kWh/(m kWh/(m22a) a) 15

hh-1-1

0.6 hh-1-1 0.6

79 79

kWh/(m22a) a) kWh/(m

120 kWh/(m kWh/(m22a) a) 120

15 15

kWh/(m22a) a) kWh/(m

Primärenergie-Kennwert Primärenergie-Kennwert Einsparung insparung durch durch solar solar erzeugten erzeugten Strom: Strom: E

00

kWh/(m22a) a) kWh/(m

Heizlast: Heizlast:

99

W/m22 W/m

Übertemperaturhäufigkeit: Übertemperaturhäufigkeit:

00

% %

Energiekennwert Heizwärme: Heizwärme: Energiekennwert Drucktest-Ergebnis: Drucktest-Ergebnis: Primärenergie-Kennwert Primärenergie-Kennwert

(WW, Heizung, Heizung, Kühlung, Kühlung, HilfsHilfs- u. u. Haushalts-Strom) Haushalts-Strom):: (WW,

Primärenergie-Kennwert Primärenergie-Kennwert

(WW, Heizung Heizung und und Hilfsstrom) Hilfsstrom):: (WW,

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kWh/(m a) a) kWh/(m

Energiekennwert Nutzkälte: Nutzkälte: Energiekennwert Kühllast: Kühllast:

über über

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W/m22 W/m

25 25

°C °C

15 kWh/(m kWh/(m22a) a) 15

Erfüllt? Erfüllt?

ja ja

ja ja

Church in Bistra , Neamt county , Romania

- low-energy building

Architects: Bojescu Constantin – Piatra Neamt, Neamt county

ACADEMIA ROMANA Bucuresti - 15 martie 2013

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Residential living units in Cluj Napoca , Cluj county, Romania Low-energy cascade houses 2010 Architects: Dannon Construct , Cluj

ACADEMIA ROMANA Bucuresti - 15 martie 2013

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Two passive houses in Caransebes, Caras-Severin county , Romania Architects: Ruxandra Crutescu, Bucharest Heat energy demand: 15 kWh/m²/a Blower door test:: n50 = 0,4 1/h

ACADEMIA ROMANA Bucuresti - 15 martie 2013

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For Romanian climate conditions Minimum passive house standard (PHPP tool) • Special conditions for summer season climate change results – 2 seasons spring –SUMMER + autum- WINTER (solar protection & design of thermal envelope & utilities ) Easy to transform in Near Zero Energy Building or ZEB

Plus Energy Buildings Or ACTIVE BUILDINGS

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Living and working in Buildings with a good energy efficiency balance (more than 10 years) Forget about energy bills

Zero energy buildings Investition

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For example , about half of the energy consumed in Europe goes on heating and cooling of buildings and for industrial applications. Satisfying this demand by solar thermal systems is one proven and cost-effective technology solution. l

For renewable energy, a new era that

remove barriers and mobilise investment is now in run. Energy needs must be included

from the beginning on the planning stage.

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Wright now and not in the future, buildings design need a complete reinvention of energy consumption, conservation and production. A comprehensive holistic energy efficiency design for cities and buildings. Extreme energy efficiency is the base for a green, clean, safe and renewable energy, easily accessible for those who need it. Correct design and construction can contribute to dramatically decrease energy consumption and CO2 emissions of dwellings.

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ENVIRONMENTAL FRIENDLY GREEN ECOLOGICAL USING ENERGY FROM RENEWABLE SOURCES SUSTAINABLE DEVELOPMENT means also Healty planet

and Healthy people

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Thank you for the attention ! [email protected]