Ankoor Sanghvi Architects THE NEW ENERGY FUTURE BY ......MENARA MESINIAGA, MALAYSIA & KANCHENJENGA APTS, MUMBAI Ankoor Sanghvi Architects ALTERNATE STRATEGIES EARTH SHELTERED THERMAL

APPROACH TO AN ENERGY EXCELLENCE IN GREEN BUILDING DESIGN

20TH November 2015

Ankoor Sanghvi Architects

THE NEW ENERGY FUTURE BY 2050

9 MILLION PEOPLE , 75% LIVING IN CITIES.

(2 BILLION AT THE MOMENT)

2 BILLION VEHICLES.

(1 BILLION AT THE MOMENT)

RISING ENERGY DEMAND, SUPPLY PRESSURE, CLIMATE CHANGE

MANY MILLIONSOF PEOPLE WILL RISE OUT OF ENERGY POVERTY, WITH HIGHER LIVING STANDARDENERGY USE RISES.

ENERGY DEMAND COULD DOUBLE WHILE CO2 EMISSIONS MUST BE HALF TO AVOID SERIOUS CLIMATE CHANAGE.

NEED TO BECOME TWICE AS EFFICIENT USING HALF THE ENERGY TO PRODUCE EACH RUPEE OF WEALTH.

3 TIMES MORE ENERGY FROM RENEWABLE SOURCES.

Ankoor Sanghvi ArchitectsSource: The Future of Energy – Shell Presentation

30 kWh/sqft/yr CONVENTIONAL BUILDINGS

27 kWh/sqft/yr ASHRAE BASECASE

19 kWh/sqft/yr GOLD RATED BUILDINGS

15.6 kWh/sqft/yr TATA – KROSAKI BUILDING

12 kWh/sqft/yr VERY HIGH PERFORMANCE BUILDING

5 kWh/sqft/yr TARGET


ENERGY DEMAND IN COMMERCIAL BUILDINGS

0 KWh/sqft/yr


D E

S I

G N

THE APPROACH-DESIGN Vs. EFFICIENCY

ORIENTATION & FORM

ENVELOPE OPTIMIZATION

DESIGN FOR DAYLIGHT

SHADING DESIGN

VENTILATION DESIGN

ALTERNATE STRATEGIES


EFFICIE

NCY

THE APPROACH-DESIGN Vs. EFFICIENCY

HIGH COP CHILLERS- VRF

LED LIGHTING – LOW LPD

VARIABLE FREQUENCY DRIVES

SENSOR BASED VENTILATION

HEAT RECOVERY WHEELS

ALTERNATE STRATEGIES

THE DESIGN APPROACH

ENERGY CONSUMPTION ANALYSIS


Conventional Building

�Energy consumption27 KWH/sqft/yr

� Cooling Load250 Sqft/Tr

EQUIPMENT- 20%

LIGHTS - 12%

OCCUPANTS- 03%

WIN SOLAR- 35%

WIN CON- 10%

ROOF CON- 09%

WALL CON - 11%

TRL- Krosaki –Administration Building Ankoor Sanghvi Architects

N

ORIE

NTATIO

N

DESIGN FOR DAYLIGHTING

Window to Wall Ratio : 19.7%

Maximum Bay Depth : 15.5 m

Daylight Penetration: 7.5 m

Glass Characteristics:

SC : 022

‘U’ Value : 0.32 Btu/hr.sqftFVLT: 0.30

Daylit area:

Average daylighting of 250 lux

Delivered to 92.4% of the regularly

Occupied areas.


DESIG

N F

OR D

AYLIGHTIN

G

DESIGN FOR DAYLIGHTING- LIGHT SHELVES


DESIG

N F

OR D

AYLIGHTIN

G


ENVELOPE OPTIMIZATION

Wall Assembly:

9” Flyash Brick, Plastered on both sides + 25mm air gap+ ACP

Thermal Resistance- R-9

Roof Assembly:

Screed+ 150 mm koba+ Overdeck -50mm XPS insulation +150 mm RCC Slab

Thermal Resistance – R-13

ENVELOPE

OPT

IMIZ

ATIO

N


SHADIN

G D

EVICES

SHADING ON SOUTH EAST FAÇADE- TRL- KROSAKI

SHADING ON SOUTH –WEST FAÇADE RR KABEL FACTORY, VADODARA


VENTIL

ATION S

TRATEGIE

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ALTERNATE S

TRATEGIES

VENTURI EFFECT WITH JALLI- J.K. CEMENTS- INSTITUTE, RAJASTHAN

JALLIS IN VENRACULAR ARCHITECTURE AND AT THE CII-SOHRABJI GODREJ GBC

Natural Ventilation Strategies in Zero

Energy Building-BCA Singapore

The core concept of the solar

assisted stack ventilation

system revolves around the

use of heat removed from

solar panels to induce

ventilation in the school hall

and classrooms (buoyancy

effect).


VENTIL

ATION S

TRATEGIE

S


COURTYARDS

COURTYARD AT THE PATNI CAMPUS NOIDA- DESIGNED BY DND

Courtyards

Courtyards in Hot Dry Climes are reservoirs of

the cool night air, thus forming a Cool

Microclimate.

Energy Conservation is effected due to

reduced Delta T


COURTYARDS

SKYCOURTS – SHADING DEVICESMENARA MESINIAGA, MALAYSIA&KANCHENJENGA APTS, MUMBAI


ALTERNATE S

TRATEGIES

IMAGE – PinterestEARTH SHELTERED THERMAL BUFFERING

ENERGY CONSUMPTION ANALYSIS – TATA- KROSAKI

ENERGY PERFORMANCE- DESIGN APPROACH

BASELINE BUILDING ORIENTATIONWALL+ROOF & GLASS

INSULATIONSHADING DAYLIGHTING

27 KWh/sqft/Yr 26.5 KWh/sqft/Yr 24.5 KWh/sqft/Yr 24 KWh/sqft/Yr 23 KWh/sqft/Yr


ENERGY PERFORMANCE- EFFICIENCY APPROACH

DESIGNED BUILDINGEFFICIENT LIGHTING

LPD-0.57 w/sqftEFFICIENT CHILLERS

COP-5.54VFD+HRW+BMS

BASED CONTROLSDEMAND CONTROL

VENTILATION

23 KWh/sqft/Yr 21 KWh/sqft/Yr 20 KWH/sqft/Yr 15.8 KWh/sqft/Yr 15.6 KWh/sqft/Yr


INTEGRATED APPROACH TO ENERGY OPTIMIZATION


MIT / CBA Conference / May

10, 2006

Tomorrow’s energy efficient buildings would have …

" A Building Envelope where 1 Tr/ 800 sqft would be required to ensure thermal comfort.

" Very High level of Equipment Efficiency where Energy Consumed would be 5 KWh/sqft/yr (lighting, HVAC, office devices, …)

" Intelligence to Optimize Energy Usage without compromising Indoor Environmental Quality, Security and health & Well Being of the Building Occupants

" Renewable and non polluting energy sources

" The ability to satisfy its own energy needs or even contribute excess power to the community (zero/positive energy buildings)

" Users whose behaviors would have evolved towards a reasoned usage of energy


“Caesar, now we shall proceed alright if first we observe in what regions

or latitudes of the world our work is placed. For in one part the earth

is oppressed by the Sun in its course; in the other part it is affected by

it at a moderate distance. Thus in a similar manner the arrangement of

our buildings should be guided by the kind of locality and the change of

climate. Thus we may remedy by art the harm that comes by chance." –

Vitruvius



HIGH PERFORMANCE GREEN BUILDINGS

Documents

Ankoor Sanghvi Architects THE NEW ENERGY FUTURE BY ......MENARA MESINIAGA, MALAYSIA & KANCHENJENGA APTS, MUMBAI Ankoor Sanghvi Architects ALTERNATE STRATEGIES EARTH SHELTERED THERMAL