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PROJECT IDEAS IN IMPROVING ENERGYIMPROVING ENERGY
EFFICIENCY OF BUILDINGSB.MUNKHBAYAR/A.TSOGT
BEEP, UNDPBEEP, UNDP
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Present condition of energy ti i t ticonsumption in construction
sector
• Heating energy consumption is much• Heating energy consumption is much higher than electricB ildi d d i i i kl• Building energy demand increasing quickly
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Energy sourcesInstalled capacity of power plants, MW
28.20.51.20.9
Hydro PP (13)Wind PP (6)
Solar PP (14)Hybrid Solar wind PP (11)
Installed capacity of power plants, MW
1848
28.836
6
Uhaa hudag PPDarkhan PPErdenet PPDornod PP
Dalanzadgad PPy ( )
16.1136
560
0 100 200 300 400 500 600
PP2PP3PP4g
96.4%
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Energy production and distribution, 2010No Specification Value1 Produced electricity, mln. kWh 4256.02 Distributed electricity, mln. kWh 3585.13 Distributed heat, mln. kWh 7235.44 Average heat value of coal, kWh/kg 3.85 Coal consumption Thousand Ton 5063 15 Coal consumption. Thousand Ton 5063.1
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The coldest capital cityp y
• Duration of heating season: 240 daysDuration of heating season: 240 days• HDD: app. 7400 oC-day
CDD: 490 oC day• CDD: 490 oC-day• Heating design temperature: -39oC• Cooling design temperature: 30.1oC
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TYPE OF SETTLED AREATYPE OF SETTLED AREA
- Small village and cities /Bag, soum and temple/g g, p- Middle or large cities /Aimag centers, Ulaanbaatar/- Ger area /part of cities/- Mining camp- Mining camp
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Statistic data of construction sector• In 2010, construction entities built buildings worth of
600.5 bln. MNT, including residential buildings andcommercial centers, showing an increase by 54.4percent or 211.6 bln. MNT compared with previousyearyear.
• In 2010, total of 630 new buildings and structureswere constructed Out of which 152 werewere constructed. Out of which, 152 wereresidential buildings for 9899 households; 63school and cultural buildings; 55 office buildings; 16g ; g ;industrial buildings and 9 hotel buildings.
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Type of dwelling (UB)Type of dwelling (UB)
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Type of dwellings (in UB)yp g ( )
25% 40% 35%
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Ger- Traditional dwelling /Felt insulated wood framed home/
Ger- Specific fuel consumption muchconsumption much higher- High infiltration- Less R value
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ProductProduct
• 30-90m2 single or double store houses
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Specific energy consumption for heating
600
700
800
[kWh/m2.a]
400
500
600
200
300
0
100
Bad insulation
Better insulation
Non-insulated
Insulated Before 1997 After 1997
Ger House Apartments
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Energy cost of heatingNo Type of heating system Cost of
energy, MNT/gy,kWh
1 District heating (by heat meter) 7.5-(9.2)2 Electric heating (90% eff) 1033 Electric heating (90% eff) night tariff 813 C l b i t (50% ff) 603 Coal burning stove (50% eff) 604 LPG heater 2005 Low pressure boiler (70%) 425 Low pressure boiler (70%) 42
Baganuur coal 80MNT/kg (4.09kWh/kg), Nalaikh coal 120MNT/kg. (4.07kWh/kg)
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BNbD “Thermal performance of building”• Basic legal document (Building code) of
energy consumption of building including gy p g gbelow requirements:– U-value of building structures /Efficiency/– U-value of building structures /Health/– Specific heat loss of building– Compactness– Glass-wall ratio– Vapor transfer resistance– Energy passport of building / Energy label
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Thermal performance test
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ENERGY LABEL
BUILDING WINDOW INSULATIONBUILDING WINDOW INSULATION MATERIAL
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Project ideasProject ideas
• Retrofit of existing housesI U l f b ildi t t– Improve U-value of building structures
– Reduce infiltration heat loss• Solar hot water systems for households
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Retrofit insulation for existing housesRetrofit insulation for existing houses
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RESULT
Annual heatingdemand, kWh
Electricity cost forheating (normal
Electricity cost forheating (day-night, g (
tariff). MNTg ( y g
tariff). MNT
B f i l ti 16 317 1 453 844 1 144 409Before insulation 16,317 1,453,844 1,144,409
After insulation 5,589 497,979 399,564
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Emission factorEmission factor
• Central energy system: 1.1501 tCO2/MWh* (OM)• Bituminous Coal: 0.340 tCO2/MWh**• Brown coal briquettes: 0.351 tCO2/MWh• LPG: 0.227 tCO2/MWh
Diesel oil: 0 266 tCO2/MWh• Diesel oil: 0.266 tCO2/MWh• Solar thermal: 0.000 tCO2/MWh
* - cdm-mongolia.com** -IPCC Guidelines for National Greenhouse Gas Inventories
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Baseline dataBaseline data
• Meteorological data: MeteonormMeteorological data: Meteonorm
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Baseline dataBaseline data
• Fuel consumptionFuel consumption– Not exactly data for dwellings (fuel
consumption survey data from differentconsumption survey data from different sources)
– Calculation methodCalculation method (EN832, ISO13789, ISO13790) based on thermal performance of building (U-value, ACH etc)
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SOLAR HOT WATER SYSTEMSOLAR HOT WATER SYSTEM
• 30-70 percent of energy consumption for phot water possible to use solar energygy
24
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T*SOL Pro 5.0Simulation software for solar waterSimulation software for solar water
heater system design
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Solar hot water system for one f ilfamily
• Annual energy consumption for hot water: 2840kWh2840kWh.
• Solar energy consumption: 58.7%• Electric energy consumption: 1172kWh/a
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www.beep.mnwww.beep.mn