THE FRENCH EMBASSY IN TOKYO

Transcription

1 A PROJECT IN JAPAN DISTINGUISHED FOR ITS COMMITMENT TO SUSTAINABILITY THE FRENCH EMBASSY IN TOKYO

2

3 - FROM AIRPORT TO EMBASSY: A TROPISM - A STRONG ALLIANCE BETWEEN FRENCH AND JAPANESE COMPANIES:

4 VICINITY MAP

5 SITE PLAN

6 2005

7 2013

8

9 SITE INTEGRATION LONGITUDINAL SECTION NORTH ELEVATION SOUTH ELEVATION

10 PLAN THREE SHARP-ANGLED COMPONENTS

11 BASEMENT LEVEL

12 CURRENT LEVELS

13 SUSTAINABLE DESIGN ORIENTATIONS

14 SUSTAINABLE DESIGN ORIENTATIONS

15 SUSTAINABLE DESIGN ORIENTATIONS

16 SUSTAINABLE DESIGN ORIENTATIONS

17 SUSTAINABLE DESIGN ORIENTATIONS

18 PRISMATIC GREENWALL

19 PRISMATIC GREENWALL

20 PRISMATIC GREENWALL

21 External Temperature [ C] Relative Humidity [%] NATURAL VENTILATION: FEASABILITY STUDY thermal comfort Evolution of the External Temperature throughout the year, Tokyo Hour of the day Too hot Mars Avril Mai Juin Juillet Août Septembre Octobre Novembre hygrometrical comfort Evolution of the External Humidity throughout the year, Tokyo Hour of the day Too humid Janvier Mars Mai Juillet Septembre Octobre Décembre 6th of March 9H00..11H00..15H00.17H00.19H00 30 th of November, 10H00 21 st of January, 10H st of February, 10H00

22 NATURAL VENTILATION THROUGH SOLAR CHIMNEY AND HEAT RECOVERY WINTER MODE: If T ext < T min 15 C, then Heating Mechanical extraction with heat recovery The chimney is closed SUMMER MODE: If T ext > T max 26 C, then Cooling Mechanical extraction The chimney is closed Heat exchanger Air Pump T ext << 15 C deshumidifier ext T ext > 26 C ext T int 22 C T int 26 C T int 22 C T int 26 C

23 NATURAL VENTILATION THROUGH SOLAR CHIMNEY AND HEAT RECOVERY MID SEASON: thermal uplift If T min < T ext < T max 26 C, then Natural Ventilation stack effect : natural extraction The chimney is open T int 24 C 15 C <T ext < 26 C T int 24 C Natural ventilation + Heating thermal uplift Natural ventilation + Cooling thermal uplift Text 20 C Text 23 C T int 22 C T int 24 C T int 24 C T int 22 C

24 Cooling Need [kwh/m²] Total Cooling Need [kwh/m²] NATURAL VENTILATION THROUGH SOLAR CHIMNEY AND HEAT RECOVERY Cooling Need, with and without Natural Ventilation Base Natural Ventilation Full Year Base Natural Ventilation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Base [kwh/m²] 82 Natural Ventilation [kwh/m²] 53 Energy Savings 34%

25 NATURAL VENTILATION THROUGH THE ATRIUM Natural ventilation Heat dissipation during summer

26 JAPANESE SUSTAINABLE CERTIFICATION: CASBEE Comprehensive Assessment System for Built Environment Efficiency ENVIRONMENTAL QUALITY AND PERFORMANCE POSITIVE IMPACT INSIDE THE BOUNDARY. ASSESSMENT CATEGORY «Q» BUILDINGS ENVIRONMENTAL LOADINGS OUTSIDE THE BOUNDARY BUILT ENVIRONMENT LOAD. ASSESSMENT CATEGORY «L» Resource consumption, embodied CO 2 emission Emission of air pollutant, noise, heat NEIGHBORING BUILDING TARGET BUILDING NEIGHBORING BUILDING Soil, water- pollutant SITE BOUNDARY

27 ASSESSMENT RESULT BY BAR CHARTS ENVIRONMENTAL QUALITY ENVIRONMENTAL LOAD REDUCTION

28 INDICATOR BEE BASED ON ECO-EFFICIENCY ECO-EFFICIENCY = QUALITY OF LIFE ENVIRONMENTAL LOAD BUILDING ENVIRONMENTAL EFFICIENCY BEE = Q ( Quality of Building ) L ( Building environmental Load )

29 CASBEE ASSESSMENT RESULT

30 ENTRANCE VISA BUILDING

31 SOUTH FACADE

32 PRISMATIC GREENWALL

33 NORTH FACADE

34 THE ATRIUM