Project H - asew-expo.com. Aj. Acharawan-ProjectH.pdf · Vision Design direction Key strategies...
Transcript of Project H - asew-expo.com. Aj. Acharawan-ProjectH.pdf · Vision Design direction Key strategies...
Project HGreen Workplace Design
under 26,000B/m2
Acharawan Chutarat, Ph.D.School of Architecture + Design, KMUTT
VisionDesign direction
Key strategiesBuilding form
Landscape designBuilding envelope
Air-conditioningSmart Lighting
Renewable energy
Design decision making through simulation and LCCDGNB Gold
The building will serve as a corporate office for 250 occupants. It also house a commercial area to serve the occupants and nearby residents. The building must be expandable to accommodate a fair amount of additional occupants as part of a planned expansion within five years of initial occupancy. In the future, it is possible that all retail spaces will be occupied by the company (office). Currently significant project’s requirements are:
• HQ building for HARN Engineering (6000 m2)
• Office area 5000m2 and commercial area 1000m2
• Space design promote collaborative working and Generation Z lifestyle
• Building as a demonstration case for learning
• Energy efficient building
• Achieve good indoor environment and thermal comfort
• Building that reflects HARN’s corporate identity
• Achieve DGNB’s Gold Certification
Interior Design Architectural Design Landscape Design Structural Engineer MEP DGNB
Better work, health, and well-beingBiophilic atmosphere• Access / connect / green, materials and natural light /
ventilation
Better respond to thermal and visual comfort• POE for lighting control• Feedback information on phone that can be
manipulated by software or AI
Smart and less effort in operation• Access control for spaces• Security control for identity verification
Energy efficient• Monitoring building information and suggesting best
schemes
“Strategies for Thai weather, Bangkok”
• Natural ventilation is appropriate for 19.4% of the
occupied hours (Adaptive Comfort model).
• Sun shading is highly recommended.
• Cooling and dehumidification are recommended
for 78.9% of the occupied hours.
• North and south wind are significant.
Building6500 sq.m.
1,800 sq.m. footprint
Parking for commercial
Parking.
SITE9,040 sq.m.
Landscape that cools ambient temperature
creating shade and green friendly
atmosphere
11.40 m
5.60 m
11.388 m 11.40 m
3.55 m
6.15 m
2.70 m
PRODUCT: STONESTYLIST หรือ AMO
SHADE: GREY
ปูกระเบื้องลายหินหกเหลี่ยมสีเทา
Water feature to reduce ambient temperature and creating pleasant background noise.
Play
Collaborative
Shared
Noisy space
Fun
Work
Concentration
Private
Silence
Focus
Zone design
sDA indicates the percentage of the workplane for which it occurs that the task illuminance is achieved using daylight during 50% of the working hours in a year, whereas ASE indicates the percentage of the workplane for which it occurs that illuminance levels related only to the direct component of daylight exceed the value of 1000 lx for at least 250 hours in a year.
Daylight Factor
Daylight Factor
Daylight Autonomy/Avg Solar Exposure
Daylight Autonomy/Avg Solar Exposure
Daylight Performance
Energy Performance
Lobby/Showca
se240 sq.m.
1st FLOORHARN Lobby
Show case
Retails / Coffee shop / Restaurant / Outdoor terrace
M&E room / Service loading
2nd FLOORCanteen (outdoor multipurpose)
Meeting center
Retails
4th FLOORAdmin
RF department
Shared space / pantry
Meeting rooms
5th-6th FLOORSC department
DP department
Meeting rooms
M&E
Retail
Food court
320 sq.m.
Meeting
center367
sq.m.
M&E /
Kitchen
Retail
RF230
sq.m.
ADMIN
470 sq.m.
DP425 sq.m.
SC425
sq.m.
“The Big picture”
“Solar gain reduction”Orientation / shading
Spanish moss
(เคราฤๅษ)ี
have high shading capability and low irrigation demand.
Solar gain is a significant cause of building heat gain in Thailand. Shading devices are necessary. Horizontal shading device is suitable for South-North façade.
A tree can become a powerful shading device and significantly reduce solar gain.
“Biophilic Design”Access to green / daylight
Pocket garden provide the occupants green view and access to daylight.
An example of a daylit space by an external courtyard.
“Biophilic Design”Access to natural material / natural ventilation
Brick as a main decorative building material. Provide earth-tone and natural feeling to the building.
Plant as a main material for shading device and other light weight material. Plants provide natural look to the building. It is also a sustainable material with ability to store the carbon, if procure sustainably.
Crosswind natural ventilation provide highest flow rate to the building interior. Suitable for tropical climate zone.
GREEN WALL
Where?• Facade
What?• Green wall
Why?• Shading• Reduce radiant
temperature• Green atmosphere
DAYLIGHT/ VIEW FOR WORKPLACE
Where?• All working area
What?• Daylight
Why?• Daylight and view have
significant impact on the occupants health, mind and comfort. All working spaces have access to daylight and view.
Consideration• Daylight Glare
Outside
view
Outside
view
Outside
view
Outside
view
Atrium
view
Outside
view
Garden
viewDaylight from
window
Daylight from
skylightDaylight from
window
Daylight from
window
PV and Daylight
Power : 108 kW
70 cm
PV Panel
Walkway
Bright color
ceiling300 cm
120 cm
Example of fan installationBIG ASS FAN
Where?• Ceiling of the 3rd floor
atrium• Ceiling of the 6th floor
atrium Why?• Help circulate the air in the
space and make the occupants feel cooler as a result of the increasing wind speed. Temperature set point of the air condition can be increase to save energy.
3rd FLOOR 6th FLOOR
Big Ass fan : Essence Series
AHU
AHU
AHU
AHU
AHU
AHU
Small
tank
“Collect condensed water from AHU”
Natural Ventilation with cool ambient
Where?• 1st – 3rd floor
circulation/lobbyWhy?• Help circulate and lower the
air temperature in the space and make the occupants feel cooler by evaporative cooling from featured water wall and condensate water and more wind speed from Big Ass fan.
VEGETABLE GARDEN
Where?• 3th floor Canteen area
What?• Hydroponic garden• Vegetable garden
Why?• Encourage food
generation• Organic• Better health
3rd
FLOOR
Flexibility
WATER REUSE FROM COOLING SYSTEM
Where?• 3rd floor Canteen
What?•Use water from AHU to
at the canteen area via irrigation of plants in the building.
•Water tank (small)
Why?• Use water from AHU to
cooldown the atmosphere.
• Condensed water is approx. 1.50 kg / hr per 1 ton cooling load.
AHU
AHU
AHU
AHU
AHU
AHU
Small tank
“Collect condensed water from AHU”
BUILDING ENVELOPE
Where?• Exterior wall and roof
What?•Light pre-cast concrete
+ rockwool insulation + vapor barrier + HDF board
Why?• Well insulated
wall/roof• Air tightness to reduce
latent load
Life Cycle Costs: Wall Insulation
Glazing Selection
Where?• Facade
What?•Comparative study on LCC
Why?• Help in decision making
over project life time
Sin
gle
glaz
ing-
22
07
B/m
2
Do
ub
le g
lazi
ng-
34
98
B/m
2
Do
ub
le g
lazi
ng
low
-6
45
9 B
/m2
Life Cycle Costs: Glazing
Comparison of HVAC options
Comparison of investment costs
Life Cycle Costs: HVAC
CHILLERS
Where?• 1st floor
What?: Chiller 7⁰C• Quantity : 3 units (1
constant, 1 for part load50RT for DOAS and 150RT for AHUs and 1 small for radiant cooling 13⁰C 3.5RT)
Why?• Flexibility for various
time of use• 25-30% energy saving
compared to conventional
Chiller rm. as a demonstration room
in the lobby area
Active Chilled Beam
Radian Cooling Floor
13⁰C
16⁰C
Fresh air from DOAS
Separated small chiller at higher temperature
Energy Intensity 110 kWh/m2-y
Ref: Ministry of Energy
OfficeMallRetailHotelCondoHospitalEduOthers
Structure32%
Architecture11%
Interior8%
Signage0%
MEP30%
IT7%
AV5%
Landscape7%
COST BREAKDOWN
IT as software infrastructure that allows other systems to plug in (virtual LAN), digital door lock, shared printing, CCTV, lighting control, HVAC control, PV.
Big data , learning from machine to develop future control logic based on human behavior for well-being and for potential of energy saving as well.