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Overview of the NAS regulations,building sector and research activities. Sašo Medved University of Ljubljana Slovenia. Bulgaria Czech Republic Hungary Latvia Lithuania Poland Romania Slovak Republic Slovenia. Report prepared by. Technical University of Budapest, Hungary - PowerPoint PPT PresentationTRANSCRIPT
Bulgaria Bulgaria Czech Republic Czech Republic HungaryHungaryLatvia Latvia LithuaniaLithuaniaPolandPolandRomaniaRomaniaSlovak RepublicSlovak RepublicSloveniaSlovenia
Overview of the NAS regulations,building sector and Overview of the NAS regulations,building sector and research activities research activities
Sašo MedvedSašo MedvedUniversity of LjubljanaUniversity of LjubljanaSloveniaSlovenia
Technical University of Budapest, HungaryTechnical University of Budapest, HungaryIPA SA, BulgariaIPA SA, Bulgaria
Brno Univertity of Technology, Chech RepublicBrno Univertity of Technology, Chech RepublicEnEffect Center for Energy Efficiency, BulgariaEnEffect Center for Energy Efficiency, Bulgaria
Czech Technical University in ProgueCzech Technical University in ProgueIntertermo CCConcept Ltd, RomaniaIntertermo CCConcept Ltd, Romania
Warsaw University of Technology, PolandWarsaw University of Technology, PolandLatvian Academy of Science, LatviaLatvian Academy of Science, Latvia
Slovak University of Technology, Slovak RepublicSlovak University of Technology, Slovak RepublicBlack Sea Regional Energy Centre and Technical University of SofiaBlack Sea Regional Energy Centre and Technical University of Sofia
Institut of Heating and Sanitary Technology, PolandInstitut of Heating and Sanitary Technology, PolandEcofys, PolandEcofys, Poland
Technical University pf Cluj-Napoca, RomaniaTechnical University pf Cluj-Napoca, RomaniaZRMK Technological Building & C.E. Institut, SloveniaZRMK Technological Building & C.E. Institut, Slovenia
University of Ljubljana, SloveniaUniversity of Ljubljana, SloveniaLithuanian Energy Institute, LithuaniaLithuanian Energy Institute, Lithuania
Report prepared byReport prepared by
PurposePurpose
To examine the characteristics of the expanded EU To examine the characteristics of the expanded EU market, technological, economic, social and market, technological, economic, social and educational dimensions, as it relates to building energy educational dimensions, as it relates to building energy researchresearch
To identify potential target market sectors on the basis To identify potential target market sectors on the basis of potential benefitsof potential benefits
Identify the most appropriate technologies for NAS Identify the most appropriate technologies for NAS marketsmarkets
Identify and implement coherent technology transfer Identify and implement coherent technology transfer and promotion strategies appropriate to NAS market and promotion strategies appropriate to NAS market needsneeds
Building Building thermal insulation and thermal insulation and energy performance energy performance regulation regulation Energy supplyEnergy supply survaysurvay Meteorological datasMeteorological datas and available databases and available databases Building sector development and RTD programs Building sector development and RTD programs overviewoverview Status of research activities and technologiesStatus of research activities and technologies
ChaptersChapters
Heat loss calculation - methodologyHeat loss calculation - methodology
BOL CZ H LAT LIT POL ROM SLV SLO
ENENEN ISOEN ISO
NationalNational
Heat loss coeficient, ground, thermal bridges, windowsHeat loss coeficient, ground, thermal bridges, windows
Heat losses coeficientsHeat losses coeficients
BOL CZ H LAT LIT POL ROM SLV SLO
0,20,2
0,40,4
0,80,8
1,21,2
1,61,6
2,02,0
2,42,4
roofsroofs
wallswalls
windowswindows
Heat losses coeficientsHeat losses coeficients
BOL CZ H LAT LIT POL ROM SLV SLO
0,20,2
0,40,4
0,80,8
1,21,2
1,61,6
2,02,0
2,42,4
roofsroofs
wallswalls
windowswindows
state-of-the-art state-of-the-art
Heat losses coeficientsHeat losses coeficients
BOL CZ H LAT LIT POL ROM SLV SLO
0,20,2
0,40,4
0,80,8
1,21,2
1,61,6
2,02,0
2,42,4
roofsroofs
wallswalls
windowswindowsgreat potentialgreat potential
Heat losses coeficientsHeat losses coeficients
BOL CZ H LAT LIT POL ROM SLV SLO
0,20,2
0,40,4
0,80,8
1,21,2
1,61,6
2,02,0
2,42,4
roofsroofs
wallswalls
windowswindows
included in overall envelope Uincluded in overall envelope U
Heat losses coeficientsHeat losses coeficients
BOL CZ H LAT LIT POL ROM SLV SLO
0,20,2
0,40,4
0,80,8
1,21,2
1,61,6
2,02,0
2,42,4
roofsroofs
wallswalls
windowswindows
f (f (T)T)
compared with fictive building with same compared with fictive building with same sizesize
Heat losses coeficientsHeat losses coeficients
BOL CZ H LAT LIT POL ROM SLV SLO
0,20,2
0,40,4
0,80,8
1,21,2
1,61,6
2,02,0
2,42,4
roofsroofs
wallswalls
windowswindows
economy analyse in case of renovationeconomy analyse in case of renovation
Overall (envelope) U valueOverall (envelope) U value
BOL CZ H LAT LIT POL ROM SLV SLO
yesyes
nono
f (A/V)f (A/V)
0,61 (A/V=1)0,61 (A/V=1)
f (A/V)f (A/V)
0,70 (A/V=1)0,70 (A/V=1)
compared compared reference reference
buildingbuilding
f (A/V), DDf (A/V), DD
0,55 (A/V=1)0,55 (A/V=1)
Ventilation related heat lossesVentilation related heat losses
BOL CZ H LAT LIT POL ROM SLV SLO
min air min air requiredrequired m3/hm3/h
m3/perm3/per
building air building air tightnesstightness <0,8 h-1<0,8 h-1
heat heat recoveryrecovery
m3/hm3/h
m3/perm3/per
<4,5 h-1 <4,5 h-1 nat. vent nat. vent
<0,6 low-E<0,6 low-E
>2 h-1 >2 h-1 > > 8h/day 8h/day 60%60%
m3/perm3/per m3/perm3/per
m3/m2hm3/m2h
m3/perm3/per m3/perm3/per
>10.000 m3>10.000 m3
m3/hm3/h
m3/perm3/per
m3/hm3/h
m3/perm3/per
m3/hm3/h
m3/perm3/per
<2 h-1<2 h-1
>0.7 h-1 >0.7 h-1 1200 m3/h 1200 m3/h 50%50%
Energy performanceEnergy performance
BOL CZ H LAT LIT POL ROM SLV SLO
Calculation Calculation procedureprocedure
LimitationsLimitations 46,446,4
kWh/mkWh/m33 (A/V=1)(A/V=1)
N=242dN=242d
T=3.8oCT=3.8oC
64.4 64.4 (A/V=0.5) (A/V=0.5) kWh/mkWh/m22
simple simple method method
EN 832EN 832
EN 832EN 832
0,7-0,750,7-0,75
W/mW/m33K K
f(A/V)f(A/V) f(A/V)f(A/V) f(A/V)f(A/V)
37.437.4
kWh/mkWh/m33
nation.nation.
f(A/V), f(A/V), no. of no. of storesstores
W/mW/m33K K
EN 832EN 832
f(A/V)f(A/V)
dwellings dwellings 85 85
kWh/mkWh/m22
otherother
27,2 27,2 kWh/mkWh/m33
EN 832EN 832
f(A/V)f(A/V)
Renewable energy sources SC, PVRenewable energy sources SC, PV
BOL CZ H LAT LIT POL ROM SLV SLO
SCSC
PVPV
-- -- --
400 400 kWh/m2kWh/m2
6-9 m26-9 m2
700 vac 700 vac kWh/m2 kWh/m2
4 m24 m2
250-450 250-450 kWh/m2 kWh/m2
8-3 m28-3 m2
LightingLighting
BOL CZ H LAT LIT POL ROM SLV SLO
daylightingdaylighting
solar solar durationduration
DF > 1.5% DF > 1.5% (buil. (buil. type)type)
uniformityuniformity
glareglare
>90 min >90 min 11stst March March
>3h >3h March – March – SeptSept
between between 8:00-16:00 8:00-16:00 hourhour
DFDFmin min window/ window/ floor floor area area
>1 h >1 h Dec Dec > 3h > 3h March March > 5 h > 5 h JunJun
window/ window/ floor floor area area > 1:8> 1:8
> 90 min > 90 min 1st March 1st March – 13th Oct– 13th Oct
in 1/3 in 1/3 living living areaarea
DFDF
>1 h >1 h Dec Dec > 3h > 3h March March > 5 h > 5 h JunJun
ENERGY SUPPLYENERGY SUPPLY
Primary energy supplyPrimary energy supply Final energy supplyFinal energy supply Fuels, fuels switchingFuels, fuels switching Renewable energy sources Renewable energy sources TrendsTrends ScenariousScenarious
Primary energy supplyPrimary energy supply
BOL CZ H LAT LIT POL ROM SLV SLO
PE (PJ)PE (PJ)
trendtrend1995-20001995-2000
1726 1726
- 5.5% - 5.5%
fuelsfuels coal coal 38%38%
nuclear nuclear
8%8%
159 159
-58%58%
1990-1990-
20002000 gas+oil gas+oil 64%64%
378378
gas+oil gas+oil 60%60%
nuclear nuclear +hydro +hydro 32%32%
import 94%import 94%
4500 4500
+7%+7%
1995-1995-
20002000 coal coal 61% 61% (-20%) (-20%)
1980 1980
-28%-28%
1996-1996-
20002000 gas gas 40% 40%
809 809
+2%+2%
1995-991995-99
286 286
+17%+17%
1990-1990-
20002000 gas gas 40% 40%
Final energy consumptionFinal energy consumption
BOL CZ H LAT LIT POL ROM SLV SLO
FE (PJ)FE (PJ)
HouseholdsHouseholds(PJ)(PJ)
1050 1050
240 240 23% 23%
RankRank 2nd2nd
184184 1068 1068 581 581 205 205
216 t 216 t
40% 40%
127127
41 41 32% 32%
1st1st
393 393 37% 37%
2nd2nd
51 51 25% 25%
2nd2nd
4000 4000
Renewable energyRenewable energy
BOL CZ H LAT LIT POL ROM SLV SLO
RE in PE (PJ)RE in PE (PJ)woodwoodpeatpeatwastewaste
2121 37 37 2525
5% 5%
135 135
7%7%
1616
8%8%
32% 32% house-house-
holdsholds
14% 14% 29% 29% 2% 2%
Renewable electricity priceRenewable electricity price
BOL CZ H LAT LIT POL ROM SLV SLO
0,050,05
0,090,09
0,130,13
0,170,17
0,210,21
0,250,25
0,290,29€€/kWh/kWh
windwindbiomassbiomassbiogasbiogasPVPV
0,480,48>10 kW>10 kW
<36 kW<36 kW
0,42-0,790,42-0,79f(kW)f(kW)
geother.geother.
0,7-1.40,7-1.4residentalresidental
0,25-0.60,25-0.6gridgrid
Sources of dataSources of data PublicationsPublications Institutions Institutions DD calculation proceduresDD calculation procedures
Meteorological datasMeteorological datas
Sources of dataSources of data TemperaturesTemperatures
average yearlyaverage yearly average monthlyaverage monthly extremsextrems
Meteorological datasMeteorological datas
Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation
tables tables sunshine hourssunshine hours maps with zonesmaps with zones
Meteorological datasMeteorological datas
Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation Degree daysDegree days
heating DDheating DD number of heating number of heating
daysdays cooling days (some)cooling days (some)
Meteorological datasMeteorological datas
Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation Degree daysDegree days Test reference yearTest reference year
BOL CZ H LAT LIT POL ROM SLV SLO
1+51+5 4444
Meteorological datasMeteorological datas
Meteorological datasMeteorological datas
Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation Degree daysDegree days Test reference yearTest reference year TrendsTrends
Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings
History of building sector developmentsHistory of building sector developments Description of building stockDescription of building stock Technical and economical status domestic construction sectors Technical and economical status domestic construction sectors Overiew of RTD programms Overiew of RTD programms Initiatives, support measurements and strategiesInitiatives, support measurements and strategies TargetsTargets Building sector financingBuilding sector financing
Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings
History of building sector developmentsHistory of building sector developments
BOL CZ H LAT LIT POL BOL CZ H LAT LIT POL ROMROM SLV SLO SLV SLO
PERIOD
STRUCT
URE
ENCLOSURES FUEL HEATING SYSTEMS
walls windows
wood
coal fuel
oil
gases
terra-
cotta
stoves
Local
heating systems
district
heating1930
1950
masonry+reinforced concretepoles and floors
burnt brick,28 cm and 42 thick.
double of wood.ofthe floor area
dominan
t
dominant
1950 1970
idem
burnt brick, 24 cm and 37.5 cm thick blocks of autoclaved aerated concrete
idem
dominant
dominant
1970 1990
idemand prefabricated reinforced concrete
and thermal
insulating reinforced concrete panels
30 cm. thick.
idem1950 1970and
simple windows with heat insulated
glass
dominant
dominant1990
2000
idem 1970 1990
idem1970 1990
simple P.V.C.
windows with heat insulated
glass
dominant
Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings
Description of building Description of building
stockstock construction periodconstruction period thermal insulationthermal insulation
levellevel size & numbersize & number typologytypology type of constructionstype of constructions type of heating type of heating
systems systems
BOL CZ H LAT LIT POL ROM SLV BOL CZ H LAT LIT POL ROM SLV SLOSLO
Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings
Technical and economical status domestic construction sectorsTechnical and economical status domestic construction sectors construction works, capital repairs, maintenanceconstruction works, capital repairs, maintenance ownership structureownership structure market trends market trends
BOL BOL CZ CZ H LAT LIT POL ROM SLV SLO H LAT LIT POL ROM SLV SLO
Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings
Initiatives, support measurements and strategiesInitiatives, support measurements and strategies Energy Law (paragraphs fot building sector)Energy Law (paragraphs fot building sector) Executive regulations regard to REExecutive regulations regard to RE The Thermal modernisation act The Thermal modernisation act
BOL CZ H LAT LIT BOL CZ H LAT LIT POLPOL ROM SLV SLO ROM SLV SLO
Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings
BOL CZBOL CZ H LAT LIT POL ROM SLV H LAT LIT POL ROM SLV SLOSLO
ENERGY SAVING MEASURES - IMPLEMENTATION BARRIERS
2,6% 3,9% 4,2%11,5% 12,4% 13,2% 13,4%
20,5%
71,1%
0%
10%
20%
30%
40%
50%
60%
70%
80%lo
w e
nerg
ypr
ice
bad
rela
tions
hop
with
man
agem
ent
othe
r
owne
rshi
ppr
oble
ms
(priv
atis
atio
n,...
)
lack
of t
ime
long
pay
-ba
ck p
erio
d
diss
agre
eme
nt o
f ow
ners
lack
of
prof
essi
onal
info
rmat
ion
lack
of
mon
ey
Initiatives, support measurements and strategies - barriersInitiatives, support measurements and strategies - barriers
Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings
TargetsTargets energy policy (2000 – 2008)energy policy (2000 – 2008) electricity supply short and long thermelectricity supply short and long therm gas industry (2000 – 2008)gas industry (2000 – 2008) coal miningcoal mining uranium mining (2000 – 2030)uranium mining (2000 – 2030) oil supplyoil supply
BOL BOL CZCZ H LAT H LAT LITLIT POL ROM SLV SLO POL ROM SLV SLO
Targets Targets till 2005 25% decrease of heat demand for heatingtill 2005 25% decrease of heat demand for heating till 2010 35% decrease of heat demand for heating according till 2010 35% decrease of heat demand for heating according
to 2000to 2000
Status of the reportStatus of the report
BOL CZ H LAT LIT POL ROM SLV SLOBOL CZ H LAT LIT POL ROM SLV SLO
Draft version prepared by all NAS-ENERBUILD partnersDraft version prepared by all NAS-ENERBUILD partners Authors will be asked for autorizationAuthors will be asked for autorization Conclusions will be madeConclusions will be made