innovative technologies in building projects developers ...€¦ · • make in india • power for...
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Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Innovative Technologies in Building Projects
– Developers Perspective
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Government flagship programs
• 100 Smart Cities Mission,
• Housing for All by 2022
• Make in India
• Power for All
Growth Drivers for Construction Business in India
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
• Developmental activities in Amaravati, AP.
• Airports: Expansions of Existing Airport Terminals
– HIAL, BIAL, DIAL
• Special projects: Statue of Unity, Chatrapathi
Shivaji Maharaj Memorial Statue, Ambedkar
Statue, etc.,
• Hospitals: Construction of Hospitals & Medical
College campus – AIIMS, Odisha Medical Colleges,
JIPMER, NEIGHRIMS, etc.,
Growth Drivers for L&T Construction in India
Landmark Projects in Construction:
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Sensitivity: LNT Construction Internal Use
Future of Green Buildings
IGBC Projects:
Green Footprint -640 Crore
Sq.Ft
4700 Registered/Certified Projects
2018
By 20227000
Registered/Certified Projects
Green Building Footprint – 1000
Crore Sq.Ft
@ 100 Crore Sq.Ftevery Year
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Green Buildings of L&T
Completed Projects Ongoing Projects
LEED India projects are also included in the LEED List
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Building Design Optimization
for Special Projects
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Sensitivity: LNT Construction Internal Use
Fully shaded area
during December
all over the day.
Shading Analysis
Building Design Optimization – GCA, Motera
The 30yard circle is getting shaded after 6pm during Feb to Sep, and for wintershaded till 9am & after 4.30pm.
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Building Design Optimization – Statue of Unity
Zone 1
Zone 2
N
711 Average Lux Level with Overcast sky Condition –
Statue of Unity
24 no’s Skylight
(0.9m radius)
Daylight Analysis
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Sensitivity: LNT Construction Internal Use
WW
R O
ptim
izatio
nBuilding Design Optimization
WWR reduced from 66%to 30%
Description Initial Arch design 30% WWR
Glass
WWR 66% 30%
Cooling Load 225 TR 196 TR
Savings Baseline 13%
Sola
r In
sola
tion
Analy
sis
More Glassing advisable
Restrict Glass/Opening
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Energy Optimization
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Room conditions
26-280C / ≤ 70% & 300 lux
Room conditions
23-260C / ≤ 60% & 300 lux
Building energy index
60 - 90 kWh/m2-yr
Building energy index
140 kWh/m2-yr
Challenges in building design
Room conditions
26-280C / ≤ 70% & 300 lux
Building energy index
30 kWh/m2-yr – From grid
30 kWh/m2-yr – Through
Renewable
Energy Optimization
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
See through Type PV Module:
Courtesy:
Buildings that Self Sustain out of Solar Power
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Building Integrated Micro-Wind Turbine
The wind turbines could be installed in the
building in the following areas
• on the rooftop;
• between two adjacent buildings;
• inside a hole within a building that is
specially designed for this purpose
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Future POWER – Fuel Cells
• A fuel cell is an electrochemical
cell that converts the chemical
energy from a fuel into
electricity.
• The energy efficiency of a fuel
cell is generally between 40–60%
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Sensitivity: LNT Construction Internal Use
Future Power– Fuel Cells
SOFC for commercial, Sakuya Konohana Kan,Japan SOFC in ORIST by Hitachi Zosen Corporation
Source : http://www.nedo.go.jp
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Sensitivity: LNT Construction Internal Use
Typical office space
Set Point temperature • Baseline 23 °C
• Option 1: Average DBT
• Option 2: Running mean temperature
Comfort analysis Energy analysis
Cradle
Sc-STREAM
Design
builder
Outputs
Temp
PMV-PPD
Energy
Air flow
21
22
23
24
25
26
27
Basecase Case 1 Case 2 Case 3
Tem
p (°C
)
Climate Responsive Cooling Set Point
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Climate Responsive Cooling Set Point
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Integrating Outdoor/Indoor Environments
HardscapeEnergy
efficiency
CampusComparative
studyIndoor
LandscapeOutdoor
- Thermal Comfort/Energy Optimization
The research involves study of
different forms of landscaping &
its impact on
• Temperature,
• air flow,
• solar gains
• energy consumption of campus
building.
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Integrating Outdoor/Indoor Environments- Thermal Comfort/Energy Optimization
Indoor – Cooling Energy
1.5
3
4.5
6
5 10 15 20
No. of years
Temperature Rise
32.26 41.9425 year periodCooling
energy
EPI
(kWh/m2)
Hardscape
29.70 32.67to
Landscape
Total savings expected in cooling energy over a period
of 25 years is approximately around 22%.
Conservatively 5 ˚C
temperature rise has been
considered for calculating
energy over 25 years.
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Air temperature
Air temp
(0C)Case 1 Case 2
Min 36.88 35.36
Max 38.16 37.95
Mean 37.52 36.65
Surrounding the immediate periphery of building surface, air temperatures have drastically
reduced by 1.5˚C to 2.0 ˚C.
X-Y plane cut at Z = 0.75 m, 12:00 pmCase 1 - Hardscape Case 2 – Landscape
Integrating Outdoor/Indoor Environments- Thermal Comfort/Energy Optimization
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Electrochromic Glass
Smart glass or switchable glass is a glass or glazing whose light transmission properties arealtered when voltage, light or heat is applied.
• Energy Savings up to 18%.
• Reduction in the space
cooling energy consumption
up to 28%
• EPI Reduction up to 20
kWh/sq.m. for the similar
sized operating building
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Sensitivity: LNT Construction Internal Use
Smart Buildings
Smart Building -
Productive and cost-
effective environment
achieved through
optimization of
structure, systems,
services and
management
Source: Arup Foresight
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Sensitivity: LNT Construction Internal Use
Smart Buildings
Internet of Things (IoT)Manage and control temperatures,
ventilation, lighting, access,
parking, room occupancy,
elevators and energy usage in a
building using IoT
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Smart Grid Technology in Smart Buildings
- Helps to address the energy challenges &
help to lower world’s energy demand.
- Avoids costly grid infrastructure & balance
out the grid fluctuations
- Interplay between power generation and
energy demand.
Co-existence of various types of renewable and non-renewable generating
technologies, such as coal, hydro, nuclear, solar, biomass, geothermal, etc.
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Sensitivity: LNT Construction Internal Use
Smart Lighting Solutions
- Task tuning
- Daylight harvesting
- Scheduling to deliver demand-
based lighting optimized for each
zone
- Integrated with occupancy and
daylight based sensors
Smart Lighting – A Wireless network controlled systems
Courtesy – Wipro Lilghting
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Magnetic Bearing Chillers
LIFE CYCLE COST FOR
CHILLERS
Initial
Investment
Operation and
maintenance costs
• Low as 0.175 kW/ton at full capacity
and below 0.1 kW/ton at part load
• Reliable operation and lower
maintenance
• Sound levels as low as 70 dBA
Center for Excellence and Futuristic DevelopmentL&T ConstructionBuildings & Factories
Sensitivity: LNT Construction Internal Use
Courtesy - York
Magnetic Bearing Chillers
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Chiller
1
Chiller
2
Cooling
Tower
Air-conditioned
Zone
Chiller
1
Chiller
2
Cooling
Tower
Air-conditioned
Zone
Temperature description Parallel flow chillers Series counter-flow chillers
Chiller 1 Chiller 2 Chiller 1 Chiller 2
Evaporator leaving Temperature (Eg) 6.67 6.67 11.1 6.67
Condenser leaving temperature (Cg) 35 35 35 32
Lift (L) 28.33 28.33 23.9 25.33
• Adopting a Series Counter Flow
arrangement instead of a parallel
flow arrangement, work done (Lift)
by each compressor is reduced,
which significantly improves the
efficiency of the chillers at full and
part load conditions
• Lift = Cg – Eg
• Nearly 20% reduction is attained by
series counter flow chillers.
Optimized Chiller Operation
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Optimized Chiller Operation – Hartman Loop
• All chillers, pumps and
tower fans are variable
speed
• Each chillers is operated
at optimum load
Most plants operate a majority of their time below 60% capacity
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Sensitivity: LNT Construction Internal Use
Be the
Change you
want to see in
the World….