ST Diamond Building Sustainability by Integrated Design

By: Gregers Reimann

iNTA 2012 12-14 December, Singapore

Managing Director, IEN Consultants www.ien.com.my

2012 ASEAN Energy Award Winner

Contents

• Site

• Integrated Design

• Sustainable Design incl. video

• Measured Performance Work with climate & innovate

Site in Putrajaya, Malaysia The new government township 20 km South of Kuala Lumpur

PRECINCT 2

Putrajaya : Master Plan Location Plan of Lot 2C15

PROPOSED PETROL STATION

LOT

2C15

TAMAN

PANCARONA

JAB. PENDAFTARAN NEGARA

KEM. PERDAGANGAN DALAM NEGERI & HAL EHWAL PENGGUNA

KEM. PERUSAHAAN UTAMA & JAB. IMIGRESEN

PERBADANAN

PUTRAJAYA

PALACE OF JUSTICE

DATARAN PUTRA

KEM. PEMBANGUNAN

& USAHAWAN

PjP2

PjP18

KEM. KEWANGAN

Site in Putrajaya, Malaysia Photo of site and surrounding buildings

Need Statement of Client

• The building must be a landmark project with regards to design

• The building must be a landmark project with regards to sustainability

Solar Path Overlaid on the Site

Architects: Soontorn Boonyatikarn (Thailand) and NR Architect (Malaysia) Energy efficiency and sustainability: IEN Consultants

Mechanical & Electrical: Primetech Engineers Contractor: Putra Perdana Construction Client: Malaysian Energy Commission

3-minute video

Sustainable Features of ST Diamond Building. Available at YouTube:

http://www.youtube.com/watch?v=3H_sXCtDayc

http://www.youtube.com/watch?v=3H_sXCtDayc

Source: Greening Asia – Emerging Principles for Sustainable Architecture. Copyright: Nirmal Kishnani, 2012. Publisher: FuturArc

Self-shading facades

Source: Greening Asia – Emerging Principles for Sustainable Architecture. Copyright: Nirmal Kishnani, 2012. Publisher: FuturArc

Atrium daylighting

Tannenbaum reflector panel on levels 4 and 5 Atrium Daylight Design

The atrium has been carefully designed optimize daylight utilization for each floor employing the combination of the following three strategies: 1. Automated blind with six different configuration to maintain the appropriate daylighting levels at all times. The blinds with 30% light

transmittance are adjusted every 15 minutes and follow a three different control strategies for morning, mid-day and evening 2. The windows size becomes larger deeper into the atrium to cater for lower daylight levels 3. A band of Tannenbaum reflector panels are applied to 4th and 5th floor to deflect daylight across the atrium to 1st and 2nd floor where daylight

levels are the lowest. The ‘christmas tree’ profile reflectors have an inclination of 10° and reflect about 85% of the light in semi-diffuse manner, hence, avoiding visual glare issues for the building occupants.

Source: Greening Asia – Emerging Principles for Sustainable Architecture. Copyright: Nirmal Kishnani, 2012. Publisher: FuturArc

Façade daylighting

Self-shaded facade from direct sun

Diffuse light deflected into room by lightshelf and window sill LIGHT REFLECTIONS FROM:

Lightshelf + Window sill

Lightshelf only

Window sill only

Mirror lightshelf with fixed louver

Façade Daylight Design The building is 50% daylit. The façade daylighting system consists of a mirror lightshelf and a white painted window sill. Both deflect daylight onto the white ceiling for improved daylight distribution until 5 meters from the façade + 2 additional meters of corridor space. Installed office lighting is 8.4 W/m2, but 1-year measurements show consumption of only 4 W/m2 showing 50% reliance on daylighting

FACADE

Typical Cross Section

Day-Lighting- Office

Mirror

lightshelf

Fixed

blinds for

glare

control

Daylight

reflected

onto

ceiling

Source: Greening Asia – Emerging Principles for Sustainable Architecture. Copyright: Nirmal Kishnani, 2012. Publisher: FuturArc

Suspended Ceiling

Advantages by removing suspended ceiling • Allows floor slab cooling system to work • Allows deeper throw of daylight • Allows easier maintenance • Gives loftier & nicer office space

Daylight Skylight through Roof Take in diffuse light only

Lighting Control Strategy No. Lux sensor Switch Electric light Remark

1 Above setpoint Off Off If necessary, use task light

2 Above setpoint On Off If necessary, use task light

3 Below setpoint Off Off If necessary, use wall switch or task light

4 Below setpoint On On If nobody around, switch off switch

Location Setpoint (normal)

Setpoint (with task lights)

Office 300 lux 120 lux

Corridors 100 lux 40 lux

Lighting Levels

No need to switch

on lights

automatically:

Save energy

Measured Energy Performance & Payback and IRR

Measured Energy Break-down

Note: o District cooling has been converted to electricity using SCOP of 3.8

gregers@ien.com.my, +60122755630, www.ien.com.my

Thank you for your attention!

2 extra bonus slides if time allows →

Bonus slides

Measured temperatures at iNTA Conference venue 2004 and 2012

(both at NUS, SDE 3, Level 4)

Temperatures at iNTA 2012

Room 423

Room 427

Yike Bike

22.5 – 25.5 °C (Green Mark guideline)

Very Low Temperatures = Energy Wastage

16.5 1718.4

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22.5 – 25.5 °C (Green Mark guideline)

Energy Savings from Temperature Set Point

• 3% per °C (high energy buildings)

• 10% per °C (low energy buildings)

Jacket over legs + thick sweater January 2004, Singapore

Blanket + Open door June 2007, Malaysia

POTENTIAL AVERAGE SAVINGS

49% 46%

20°C office: • 26% savings

gregers_ppt