Bill Jolly 3rd Annual Conference On Cost Effective Sustainability

KEO International Consultants
ABU DHABI, AJMAN, AL AIN, AL GHARBIA, BAHRAIN, DUBAI, KUWAIT, LEBANON, OMAN, QATAR, SUDAN, WASHINGTON

Copyright 2008, by KEO International Consultants

Architects, Engineers, Project & Construction Managers

Sustainability : Addressing Our Changing Environment
y g g g
Bill Jolly MSc MCIBSE LEED AP Head of MEP KEO International Design Division Dubai
Tuesday 17th March 2009
y


Contents
Part1 – The Requirement Part 2 – Design Process
Introduction Holistic Approach
Climate Change Sustainability Selection Matrix Process
Environmental Targets Thermal Modelling
Dubai and Abu Dhabi Requirements Cost Effective Sustainable Solutions
Sustainable Solutions Conclusion


Introduction


Introduction
This presentation is divided into two parts.

The first part of the presentation briefly discusses climate change, sustainability in the built
environment and identifies international environmental targets. The presentation then focuses
specifically on the UAE and identifies the requirements for sustainability in the Emirates. A
detailed description of the regulations and requirements within Dubai and Abu Dhabi is
analyzed. Typical sustainable solutions are considered ending part one.

The second part of the presentation looks at a generic cost effective sustainable design
process in order to satisfy the regulations and requirements in both Dubai and Abu Dhabi. Any
sustainable design solution requires a complete holistic approach from the entire design team
and KEO will demonstrate how to achieve this to ultimately provide the a cost effective
sustainable solution which satisfies both regulations and the clients needs.


Part 1 – The Requirement
Climate Change
Environmental Targets
Dubai d Abu Dhabi Requirements
D b i and Ab Dh bi R i
Typical Sustainable Solutions

KEO Internationall Consultants
I t ti C lt t

Climate Change
Climate change and global warming are
unequivocally the biggest and most
fundamental problems facing planet earth
and mankind today. Global warming and
climate change are expected to have a
cataclysmic effect across the globe. The
t l i ff t th l b Th
worst effects of climate change can be
avoided if greenhouse gases incorporating
carbon di id (CO2) in th atmosphere
b dioxide i the t h
are stabilised instead of being allowed to
increase.


“To not make the most
efficient use of energy in any
form of building is an unethical
g
architectural practise.”
The Royal Australian Institute of Architects

Sustainability in the Built Environment
The term, in its environmental usage, refers to the potential longevity of vital human
ecological support systems, such as the planet's climatic system, systems of agriculture,
industry, forestry, fisheries, and the systems on which they depend. In recent years, public
discourse has led to a use of "sustainability" in reference to how long human ecological
systems can be expected to be usefully productive
productive.


Green Building
Green building is the practice of increasing the
efficiency with which buildings use resources
such as energy, water and materials whilst
reducing building impacts on human health and
the environment. This is achieved through
sustainable design, construction, operation and
design construction
maintenance.
One of the main factors to consider is energy
consumption which in turn produces CO2 and
ti hi h i t d d
contributes to climate change. Reducing the
energy consumption can help curtail climate
change activities
activities.


Environmental Target

Environmental Targets
Kyoto Protocol
Cut overall emissions of greenhouse gases
by 5.2% below 1990 levels by 2008-2012
United Arab Emirates (UAE)
Signed up to the KP and have ratified their
commitment on the 26/01/05. The UAE is a
member of the G77 and subsequently does
not have any reduction targets as the UAE
is considered a de eloping co ntr
developing country.

Dubai
Has a vision whereby construction projects should consider becoming environmentally friendly
with an emphasis on the USGBC LEED Rating System
Abu Dhabi
Has a vision whereby construction projects should consider becoming environmentally friendly
with an emphasis on the Estidama - P l Rating System (M difi d BREEAM)
ith h i th E tid Pearl R ti S t (Modified


Abu Dhabi and Dubai Requirements


Dubai Requirements

• USGBC LEED
• TECOM – SEED Sustainable Energy and Environment Division
• EHS LEED
• EGBC LEED
• Dubai Municipality DM Circular 161
• New D b Municipality Regulations b WSP - d l d
N Dubaii M i i lit R l ti by delayed


USGBC, EHS,
USGBC EHS TECOM & EGBC
USGBC: The United States Green Building Council currently control the LEED
certification process for p j
p projects in Dubai.
TECOM: Sustainable Energy and Environment Division (SEED). Sustainable
Development Policy, SEED launched a comprehensive energy conservation
programme in April 2007 by optimizing the operations of electro-mechanical
equipment at facilities owned by TECOM
TECOM.
EHS: have just announced regulations for a LEED assessment on all projects in
JAFZ
EGBC:
EGBC The Emirates Green B ilding Co ncil is currently re ie ing LEED credits and
Building Council c rrentl reviewing
have adjusted the credits to suit the Middle East construction industry and climate
conditions. Pilot version 1 has been released.


Dubai M i i li Regulations
D b i Municipality R l i
Dubai Municipality Circular 161: Dubai Municipality released Circular 161 in April
2008 which requires buildings to be sustainable with respect to, five sections namely;
q g p , y;
• Energy,
• Environment and Internal Air,
• Water,
• Lighting and
• Control Systems

Dubai Municipality New Regulations: WSP are currently writing the new
regulations for Dubai Municipality. It was widely anticipated these regulations were to
be available in January 2009 but there release has been extended.


Abu Dhabi Requirements

• Estidama
• USGBC LEED


Sustainable Solutions


Typical MEP Related Sustainable Solutions
Wind Turbines Absorption Cooling Grey Water Harvesting
y g
Photovoltaic Panels Natural Ventilation Demand Controlled Ventilation
Solar Collectors Wind Catchers Automatic Lighting Control
Combine H
C bi Heat and Power
dP Heat/Cooling Recovery AHU’s
AHU s


Other Typical Sustainable Solutions
Brie-Soleil
B i S l il Vegetation
V t ti Intelligent Facades
I t lli t F d
Efficient Transportation Rapidly Renewable Habitat
Green Roofs Limit VOC Certified Woods
Material Selection Cycle Routes


Solar Collectors
Solar Collector systems normally operate with a back up source of heat such as gas
back-up heat,
or electricity. The solar system pre-heats the water up to the required hot water supply
temperature. In the Middle East these systems generally negate the need for primary
supplies hence reduce the building energy consumption.
consumption


Photovoltaic Panels
Photovoltaic
Ph t lt i (PV) modules convert sunlight di tl into DC electricity f use iin buildings th
d l t li ht directly i t l t i it for b ildi thus
reducing the primary energy demand. PV is distinct from other renewable energy technologies
because it has no moving parts and is silent. PV systems can be incorporated on to buildings in
various ways; on sloped roofs and flat roofs, in facades etc.
y ; p ,


Wind Turbines
Wind turbines generate electricity and can b iinstalled on/in b ildi
Wi d t bi t l t i it d be t ll d /i buildings, th electricity
the l t i it
generated can be utilised by the building thus reducing the primary power
requirements. Turbines normally connect in parallel to the building and national grid.
Excess electricity is normally placed onto the grid and then drawn back later
later.


Part 2 – Design Process
Holistic Approach
Sustainability Selection Matrix Process
Thermal Modelling
Cost Effective Sustainable Solutions
Conclusion


Holistic Approach
H li i A h MEP
Reduce Energy
Renewable Sources
• Client Understanding
Environmental
• Team Understanding
EIA
• Regulations and Assessments Waste Management
• Target Setting
Infrastructure
• Sustainable Technologies Water Conservation
• All Disciplines Sustainability
Wind Farms
• Sustainable Workshops Structures
• Options
p Material Selection
• Critical Criteria Concrete & Steel
• Charrettes Architectural
• Design Team Meetings Building Orientation
Green R f
G Roofs


• Potential Sustainable Options (Maybe 5 options)
• Option Criteria Review
• Critical Criteria
• Weighting factors
• Scoring Process
• Sustainability Selection Matrix


• 5No - Potential Sustainable Options
• Option Criteria Review
• Option Description • Environmental Performance
• Installation Requirements • Capital cost
• Build-Ability • Payback Periods
• Timeline Implications
Ti li I li i • Maintenance I
M i t Issues
• Advantages of the Option • Option Conclusion
• Disadvantages of the Option


• Critical Option Selection Criteria
• Timeline Implications
• Environmental Performance
• Capital Cost
• Pay-Back Periods
• M i t
Maintenance IIssues


• Weighting Factor
ITEM CRITICALOPTION SELECTION CRITERIA WEIGHTING FACTOR

1 Capital Cost 40%
2 Environmental Performance 30%
3 Timeline Implications 15%
4 Pay-Back
Pay Back Periods 10%
5 Maintenance Issues 5%
6 TOTAL 100%


• Scoring System
Each option considered is reviewed with respect to the Critical
Option selection Criteria and each of the criteria is scored
p
against each other and a scale of 1 – 5 with all five points
being the best.

POINTS

SCORE 1 2 3 4 5


Project Title
Project Title
Sustainability Sustainability Selection Scoring Matrix

Selection Matrix

Pay Back Period
Process

Environmental

Maintenance
Capital Cost

Timeline
Weightings

Score
Option Description Points / Total % 40% 30% 15% 10% 5%
Point Score 5 5 2 2 4
1 Etc etc etc
Total Percentage Score 40% 30% 6% 4% 4%
84%
2 Etc etc etc
E
54%
3 Etc etc etc
50%
4 Etc etc etc
60%
5 Etc etc t
Et t etc
52%


Thermal Modelling


Thermal Modelling
• Required to satisfy environmental assessment methods
• Model built
M d l iis b ilt as per th matrix recommendations
the t i d ti
• Two Models
• Notional Building
• Actual Designed Building
• The whole team evaluate the results
• Creates a complete annual load profile for the building
• Further refined sustainable design solutions
• Re- simulate
• Final design in line with the Thermal Model


Cost Effective Design Solution


Cost Effective Design Solution
• Assessments and Regulations Requirements ( the Target)
g q (Set g )
• Capital and Running Cost Evaluated as part of the Option Analysis
• Selection Matrix Considers Cost Score Weighting Process
• Thermal Model – Target Analysis
• Sustainable Solutions Refined to Suit the Thermal Model
• Cost constantly considered as part of the process
• The Outcome / Design is a Sustainable Cost Effective Solution.


Conclusion


Conclusion
• Sustainability in the Built Environment will help Curtail Climate Change
y p g
• Abu Dhabi and Dubai - LEED, Estidama and Regulations
• Typical Sustainable Technologies
• Holistic Approach
• Achieve Assessment and Regulation Requirements
• Sustainable Selection Matrix
• Cost Effective Sustainable Solutions
• Thermal Modelling
• Team Evaluation and Final Design Solutions
g

For More Information on KEO, visit our website at www.keoic.com

Thank You for Listening
Questions Please

Bill Jolly 3rd Annual Conference On Cost Effective Sustainability

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Ähnlich wie Bill Jolly 3rd Annual Conference On Cost Effective Sustainability

Ähnlich wie Bill Jolly 3rd Annual Conference On Cost Effective Sustainability (20)

Bill Jolly 3rd Annual Conference On Cost Effective Sustainability