Realization of a Zero Energy House "ZENERHEIM" in Korea

2014. 10. 21

Jihyun Kim

Daewoo Institute of Construction Technology

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Contents

Introduction

Major Progress

Passive House vs. Zero Energy House

Zero Energy House “ZENERHEIM”

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2009.11 Energy conservation policy direction was proposed

2013.3 “Support law of Green Building Construction” Enforcement

Year Residential Non-Residential

2012 30% reduction

(50% reduction of heating & cooling) 15% reduction

2017 60% reduction

(Passive House level)

30% reduction

2020 60% reduction

2025 Zero Energy Building

[Energy Conservation Road Map in Buildings]

Domestic regulation

1. Introduction (1/2)

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G Geo nature 자연상태 그대로

R Recycle 자원 재활용

E Efficient 효율이 좋으며

E Energy saving 경제적인

N Natural energy 녹색 에너지

Green Premium Road Map

Green Premium Road Map (2009.8.26) by Daewoo E&C

1st stage(2009) 2nd stage(~2011) 3rd stage(~2014) 4th stage(~2022)

30% reduction 50% reduction 70% reduction ZERO

Energy House

1. Introduction (2/2)

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시흥6차

40%

769 unit

2010

우정혁신도시

50%

478 unit

2010

운중동 하임

40%

144 unit

2010

한강신도시

40%

812 unit

2010

양주옥정

50%

2,286 unit

2011

위례신도시

70%

565 unit

2012

“ZENERHEIM” (2010)

2. Major Progress

Green Premium Road Map

1st stage(2009) 2nd stage(~2011) 3rd stage(~2014) 4th stage(~2022)

30% reduction 50% reduction 70% reduction ZERO

Energy House

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Passive House

The leading standard in energy saving in buildings worldwide

The energy saving for heating amounts to over 75% in comparison with the legally

prescribed building standards

Achieve this enormous energy conservation through the use of special energy

efficient building elements and ventilation techniques

Zero Energy House

Passive House + Domestic production of energy

It’s not meaning that no energy is consumed in buildings

Minimize active technical inputs is needed by maximizing passive technology

≤ 0.15 W/ ㎡K Wall Transmission

≤ 0.8 W/ ㎡K Window Transmission

n50 ≤ 0.6/h Airtightness

≥ 75% Heat recovery efficiency (Ventilation)

3. Passive House vs. Zero Energy House

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4. Zero Energy House “ZENERHEIM” (1/12)

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새천년대교

강화조력전소

(약 25만 ㎥)

(약 60만 ㎥)

Outline

• Location : Whaseong-si, Kyeonggi-do

• Unit : 99

• Scale : 2 floor, 189.85㎡

[The external appearance]

4. Zero Energy House “ZENERHEIM” (2/12)

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Renewable energy equipment room

for domestic energy production

1st Floor 2nd Floor

4. Zero Energy House “ZENERHEIM” (3/12)

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ZENERHEIM Technology

Passive Technology

38 (Vacuum pair glass, vacuum insulation etc)

Active Technology

15 (Solar thermal, Solar cell etc)

Eco-Friendly Technology

17 (Artwall, Green roof system etc)

단열 가스 (Ar, Kr)

진공유리

TPS 간봉

로이유리 실외 실내

Vacuum insulation

4. Zero Energy House “ZENERHEIM” (4/12)

Classification of the application technology (Total 70)

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Vacuum low-e pair glass

Automated external blind

Fire door with natural

ventilation

Vacuum insulation

Aerogel insulation

Complex frame window

with blind

LED lighting

단열 가스 (Ar, Kr)

진공유리

TPS 간봉

로이유리 실외 실내

4. Zero Energy House “ZENERHEIM” (5/12)

Passive technology

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Solar cell

Solar hot water supply

system

Hybrid security light

Fuel cell Cycle generated by Solar cell

Solar landscape light

Geothermal heating & cooling

4. Zero Energy House “ZENERHEIM” (6/12)

Active technology

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4. Zero Energy House “ZENERHEIM” (7/12)

Comparison of thermal factors

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4. Zero Energy House “ZENERHEIM” (8/12)

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Heating(11,784)

Cooling(2,513)

Early Design Advanced

Design

Zero Energy House

Sum(+9,501)

Sum(-9,896)

- 395

Hot water(2,397)

Lighting(799)

Appliance(2,796)

Cooking(2,197)

Photovoltaic(4,032)

Solar thermal(3,736)

Fuel cell(2,128)

Geothermal

Unit : kWh

Heating(3,885)

Cooling(736)

Hot water(2,397)

Lighting(559)

Appliance(2,796)

Cooking(2,197)

Hot water(2,397)

Lighting(559)

Appliance(2,796)

Cooking(2,197)

Cooling(581) Heating(971)

Fig 3 : Confirmation of a zero energy house

4. Zero Energy House “ZENERHEIM” (9/12)

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4. Zero Energy House “ZENERHEIM” (10/12)

Quantity of annual energy production by renewable energy system

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67%

Early Design Advanced

Design

33%

Heating +

Cooling +

Lighting

Hot water +

Appliance +

Cooking

9%

33%

58% Energy reduction by Passive technology

Energy production by Active technology

• 2007.10 apartment in Seoul

• 84m2, district heatin

• Jan, 2009 cost of bills

\197,320 reduction

66% reduction of total cost

Zero Energy House

Electricity

Hot water

Heating

Total Sum

4. Zero Energy House “ZENERHEIM” (11/12)

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Zero Energy House Monitoring Result [2010.09 ~ 2011.12]

Solar cell Solar thermal Geothermal

Heating & Cooling Lighting

Appliance

Etc

Production

Solar cell : 262 kWh (14%)

Solar thermal : 431 kWh (22%)

Geothermal : 1,208 kWh (64%)

Sum : 1,901 kWh

Consumption

Heating & Cooling : 701 kWh

(52%)

Lighting : 173 kWh (13%)

Appliance : 201 kWh (15%)

Etc : 268 kWh (22%)

Sum : 1,343 kWh

Production – Consumption

= +558 kWh

4. Zero Energy House “ZENERHEIM” (12/12)

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Thank you!