cib tg66 south america webinar 2010-11-04 4 waldo bustamante
DESCRIPTION
The South American session of the international webinar series,"THE IMPLEMENTATION OF ENERGY EFFICIENT BUILDINGS POLICIES IN 5 CONTINENTS" was held on November 4, 2010, 10 pm - 12:30 pm, Brasilia time. The agenda for the free 2.5-hour webinar was: · 10:00 Introduction - Jean Carassus, TG 66 Coordinator · 10:10 "The Ordinance on Buildings Thermal Quality for the City of Maracaibo-Venezuela" - Nastia Almao, Emeritus Professor, University of Zulia · 10:30 "Energy efficiency in buildings in Colombia" - Carlos Valles, UPME (Energy Planing Unit), Ministry of Mines and Energy · 10:50 "Energy efficiency in buildings in Argentina" - Gautam Dutt · 11:10 "Barriers to Energy Efficiency in Buildings in Emerging Economies. Strategies to start actions: The case of Uruguay." - Alfonso Blanco, Mechanical and Industrial Engineer of UdelaR University · 11:30 "Chilean Building Thermal Performance regulations: what we´ve done and what we haven´t." - Waldo Bustamante, Professor at the School of Architecture. P. Catholic University of Chile (PUC) · 11:50 "The Brazilian Energy Efficiency Label for Buildings" - Roberto Lamberts, UFSC, Professor, Federal University of Santa Catarina, South Brazil · 12:10 Conclusions - Jean Carassus, TG 66 CoordinatorTRANSCRIPT
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Chilean Building Thermal Performance regulations:
what we´ve done and what we haven´t Waldo Bustamante G
School of Architecture
Catholic University of Chile
CIB TASK GROUP 66 WEB EVENT
"THE IMPLEMENTATION OF ENERGY EFFICIENT BUILDINGS POLICIES IN SOUTH AMERICA"
NOVEMBER 4, 2010
Chile.
17 million people
7 million in Santiago
85% urban population
0,2 % of world CO2 emissions
170% of CO2 emissions increasing during last 25 years
Energy: Main responsible for CO2 emissions
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PRIMARY ENERGY
Source: Ministry of Energy. Chile
Firewood 14%
Petrolium 35%
Natural Gas 22%
Coal 10%
Hidro power 19%
BY SECTORS
20% FOR RESIDENTIAL SECTOR
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Source: Ministry of Energy of Chile. 2010
Residential buildings national survey
Hot Water
33.2%COOKING
13,4%
Refrig 9,5%
Lighting (5,4%)
Heating system
19,1%
TV 4,2%
Stand by 3.5%
Climate:
To the
expected
variation from
north
to south, the
ocean, the
coastal range
and the
Andes, along
the country
causes
pronounced
longitudinal
variations
Note: temperatures in °C and Solar radiation (mean value) in kWh /m2 day
T°Max T°Mín Sol rad
Jan 29.7 13.0 6.4
July 14.9 3.9 1.2
T°Max T°Mín Sol rad
Jan 24.9 17.7 7.2
July 18.0 13.1 3.6
T°Max T°Mín Sol rad
Jan 24.1 5.4 7.6
July 20.9 -0,9 4.1
T°Max T°Mín Sol rad
Jan 23.8 9.0 7.0
July 11.6 4.2 1.1
T°Max T°Mín Sol rad
Jan 14.7 6.5 5.1
July 3.7 -1,1 0.6
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CHILEAN THERMAL REGULATIONFOR (NEW) HOUSING
1st STEP : 2000
Maximun U values for
Ceiling of new residential buildings
2nd STEP: 2007
Maximum U values for Walls
Floor (excepting floors over ground)
Máx area of windows according tu U value
THERMAL ZONES to ACCORDING HEATING DEGREE DAYS / BASE 15°C
1 5002 > 500 - 7503 >750 - 10004 >1000 - 1250
5 > 1250 - 15006 >1500 - 20007 > 2000
“ThermalZones”
Or
HeatingDegreeDayZones
Climatic Zones accordingto a non mandatory Chilean Standard
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Ceiling Walls FloorSingle
glazing
Double Glazing
Max Area WindowsSTANDARDS (Residential buildings)
No standars for ventilation
No standards for infiltration
No standards for cooling periods
No requirements for thermal bridges and “nonventilated“ floors
No standards for avoidingcondensation
CityThermal
Zone
Máx U
Wall
W/m2 K
Máx U
Ceiling
W/m2 K
Minimum
Heating Demand
kWh/m2 year
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