EnerBuild RTD Thematic Network: Energy in the Built Environment

1
(No Transcript)
2
Overview of the NAS regulations,building sector
and research activities
Sao Medved University of Ljubljana Slovenia
Bulgaria Czech Republic Hungary Latvia
Lithuania Poland Romania Slovak Republic Slovenia
3
Report prepared by
Technical University of Budapest, Hungary IPA SA,
Bulgaria Brno Univertity of Technology, Chech
Republic EnEffect Center for Energy Efficiency,
Bulgaria Czech Technical University in
Progue Intertermo CCConcept Ltd, Romania Warsaw
University of Technology, Poland Latvian Academy
of Science, Latvia Slovak University of
Technology, Slovak Republic Black Sea Regional
Energy Centre and Technical University of
Sofia Institut of Heating and Sanitary
Technology, Poland Ecofys, Poland Technical
University pf Cluj-Napoca, Romania ZRMK
Technological Building C.E. Institut,
Slovenia University of Ljubljana,
Slovenia Lithuanian Energy Institute, Lithuania
4
Purpose

• To examine the characteristics of the expanded EU
  market, technological, economic, social and
  educational dimensions, as it relates to building
  energy research
• To identify potential target market sectors on
  the basis of potential benefits
• Identify the most appropriate technologies for
  NAS markets
• Identify and implement coherent technology
  transfer and promotion strategies appropriate to
  NAS market needs

5
Chapters

• Building thermal insulation and energy
  performance regulation
• Energy supply survay
• Meteorological datas and available databases
• Building sector development and RTD programs
  overview
• Status of research activities and technologies

6
Heat loss calculation - methodology
Heat loss coeficient, ground, thermal bridges,
windows
EN EN ISO
National
BOL CZ H LAT LIT POL
ROM SLV SLO
7
Heat losses coeficients
2,4
windows
2,0
1,6
1,2
0,8
walls
0,4
roofs
0,2
BOL CZ H LAT LIT POL
ROM SLV SLO
8
Heat losses coeficients
2,4
windows
2,0
1,6
1,2
state-of-the-art
0,8
walls
0,4
roofs
0,2
BOL CZ H LAT LIT POL
ROM SLV SLO
9
Heat losses coeficients
great potential
2,4
windows
2,0
1,6
1,2
0,8
walls
0,4
roofs
0,2
BOL CZ H LAT LIT POL
ROM SLV SLO
10
Heat losses coeficients
2,4
windows
2,0
1,6
included in overall envelope U
1,2
0,8
walls
0,4
roofs
0,2
BOL CZ H LAT LIT POL
ROM SLV SLO
11
Heat losses coeficients
2,4
windows
2,0
1,6
f (DT) compared with fictive building with same
size
1,2
0,8
walls
0,4
roofs
0,2
BOL CZ H LAT LIT POL
ROM SLV SLO
12
Heat losses coeficients
2,4
windows
2,0
1,6
economy analyse in case of renovation
1,2
0,8
walls
0,4
roofs
0,2
BOL CZ H LAT LIT POL
ROM SLV SLO
13
Overall (envelope) U value
compared reference building
f (A/V)
f (A/V)
f (A/V), DD
0,61 (A/V1)
0,55 (A/V1)
0,70 (A/V1)
yes
no
BOL CZ H LAT LIT POL
ROM SLV SLO
14
Ventilation related heat losses
min air required
m3/h m3/per
m3/h m3/per
m3/per
m3/per
m3/per
m3/per
m3/h m3/per
m3/h m3/per
m3/h m3/per
building air tightness
lt0,8 h-1
lt4,5 h-1 nat. vent lt0,6 low-E
m3/m2h
lt2 h-1
heat recovery
gt2 h-1 gt 8h/day 60
gt10.000 m3
gt0.7 h-1 1200 m3/h 50
BOL CZ H LAT LIT POL
ROM SLV SLO
15
Energy performance
Calculation procedure
simple method EN 832
EN 832
nation.
EN 832
EN 832
f(A/V), no. of stores
f(A/V)
f(A/V)
f(A/V)
f(A/V)
f(A/V)
Limitations
46,4 kWh/m3 (A/V1) N242d T3.8oC
0,7-0,75 W/m3K
37.4 kWh/m3
W/m3K
dwellings 85 kWh/m2 other 27,2 kWh/m3
64.4 (A/V0.5) kWh/m2
BOL CZ H LAT LIT POL
ROM SLV SLO
16
Renewable energy sources SC, PV
400 kWh/m2 6-9 m2
700 vac kWh/m2 4 m2
250-450 kWh/m2 8-3 m2
-
-
-
SC
PV
BOL CZ H LAT LIT POL
ROM SLV SLO
17
Lighting
daylighting
DF gt 1.5 (buil. type) uniformity glare
DF
min window/ floor area
window/ floor area gt 18
DF
solar duration
gt90 min 1st March
gt3h March Sept between 800-1600 hour
gt1 h Dec gt 3h March
gt 5 h Jun
gt 90 min 1st March 13th Oct in 1/3 living
area
gt1 h Dec gt 3h March
gt 5 h Jun
BOL CZ H LAT LIT POL
ROM SLV SLO
18
ENERGY SUPPLY

• Primary energy supply
• Final energy supply
• Fuels, fuels switching
• Renewable energy sources
• Trends
• Scenarious

19
Primary energy supply
PE (PJ)
1726
159
378
4500
1980
809
286
trend 1995-2000
- 5.5

• 58
• 1990-2000

7 1995-2000
-28 1996-2000
2 1995-99
17 1990-2000
fuels
coal 38 nuclear 8
gasoil 64
gasoil 60 nuclear hydro 32 import 94
coal 61 (-20)
gas 40
gas 40
BOL CZ H LAT LIT POL
ROM SLV SLO
20
Final energy consumption
FE (PJ)
1050
184
1068
581
205
127
4000
40
Households (PJ)
216 t
41 32
393 37
51 25
240 23
2nd
1st
2nd
2nd
Rank
BOL CZ H LAT LIT POL
ROM SLV SLO
21
Renewable energy
RE in PE (PJ) wood peat waste
21
37
25
135 7
16 8 32 house-holds
5
14
29
2
BOL CZ H LAT LIT POL
ROM SLV SLO
22
geother.
PV
Renewable electricity price
biogas
biomass
wind
/kWh
lt36 kW
0,29
0,25
0,48 gt10 kW
0,42-0,79 f(kW)
0,21
0,7-1.4 residental
0,17
0,25-0.6 grid
0,13
0,09
0,05
BOL CZ H LAT LIT POL
ROM SLV SLO
23
Meteorological datas

• Sources of data
• Publications
• Institutions
• DD calculation procedures

24
Meteorological datas

• Sources of data
• Temperatures
• average yearly
• average monthly
• extrems

25
Meteorological datas

• Sources of data
• Temperatures
• Solar radiation
• tables
• sunshine hours
• maps with zones

26
Meteorological datas

• Sources of data
• Temperatures
• Solar radiation
• Degree days
• heating DD
• number of heating
• days
• cooling days (some)

27
Meteorological datas

• Sources of data
• Temperatures
• Solar radiation
• Degree days
• Test reference year

15
4
4
BOL CZ H LAT LIT POL
ROM SLV SLO
28
Meteorological datas

• Sources of data
• Temperatures
• Solar radiation
• Degree days
• Test reference year
• Trends

29
Research in field of energy and environmental
performance of the buildings

• History of building sector developments
• Description of building stock
• Technical and economical status domestic
  construction sectors
• Overiew of RTD programms
• Initiatives, support measurements and strategies
• Targets
• Building sector financing

30
URBAN AREA
Research in field of energy and environmental
performance of the buildings

• History of building sector developments

 
BOL CZ H LAT LIT POL
ROM SLV SLO
31
Research in field of energy and environmental
performance of the buildings

• Description of building
• stock
• construction period
• thermal insulation
• level
• size number
• typology
• type of constructions
• type of heating
• systems

BOL CZ H LAT LIT POL
ROM SLV SLO
32
Research in field of energy and environmental
performance of the buildings

• Technical and economical status domestic
  construction sectors
• construction works, capital repairs, maintenance
• ownership structure
• market trends

BOL CZ H LAT LIT POL
ROM SLV SLO
33
Research in field of energy and environmental
performance of the buildings

• Initiatives, support measurements and strategies
• Energy Law (paragraphs fot building sector)
• Executive regulations regard to RE
• The Thermal modernisation act

BOL CZ H LAT LIT POL
ROM SLV SLO
34
Research in field of energy and environmental
performance of the buildings

• Initiatives, support measurements and strategies
  - barriers

BOL CZ H LAT LIT POL
ROM SLV SLO
35
Research in field of energy and environmental
performance of the buildings

• Targets
• energy policy (2000 2008)
• electricity supply short and long therm
• gas industry (2000 2008)
• coal mining
• uranium mining (2000 2030)
• oil supply

• Targets
• till 2005 25 decrease of heat demand for heating
• till 2010 35 decrease of heat demand for heating
  according to 2000

BOL CZ H LAT LIT POL
ROM SLV SLO
36
Status of the report

• Draft version prepared by all NAS-ENERBUILD
  partners
• Authors will be asked for autorization
• Conclusions will be made

BOL CZ H LAT LIT POL
ROM SLV SLO
37
(No Transcript)