Bill Jolly 3rd Annual Conference On Cost Effective Sustainability

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

Copyright 2008, by KEO International Consultants

KEO International ConsultantsArchitects, Engineers, Project & Construction Managers

Sustainability : Addressing Our Changing Environmenty g g g

Bill Jolly MSc MCIBSE LEED AP Head of MEP KEO International Design Division DubaiTuesday 17th March 2009y


ContentsPart1 – The RequirementIntroductionClimate Change

Part 2 – Design ProcessHolistic Approach Sustainability Selection Matrix ProcessClimate Change

Environmental TargetsDubai and Abu Dhabi RequirementsSustainable Solutions

Sustainability Selection Matrix ProcessThermal ModellingCost Effective Sustainable SolutionsConclusionSustainable Solutions Conclusion


Introduction


IntroductionThis 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 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 RequirementClimate Change

Environmental TargetsD b i d Ab Dh bi R iDubai and Abu Dhabi Requirements

Typical Sustainable Solutions

KEO I t ti l C lt t

Climate Change


Climate ChangeClimate 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

t l i ff t th l b Th cataclysmic effect across the globe. The worst effects of climate change can be avoided if greenhouse gases incorporating

b di id (CO ) i th t h carbon dioxide (CO2) in the atmosphere 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 garchitectural practise.” The Royal Australian Institute of Architects

Sustainability in the Built EnvironmentThe 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 systems can be expected to be usefully productive.


Green BuildingGreen 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 sustainable design, construction, operation and maintenance.

One of the main factors to consider is energy ti hi h i t d CO d consumption which in turn produces CO2 and

contributes to climate change. Reducing the energy consumption can help curtail climate change activitieschange activities.


Environmental Target

Environmental TargetsEnvironmental TargetsKyoto ProtocolCut 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 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 ntris considered a developing country.

DubaiHas a vision whereby construction projects should consider becoming environmentally friendly Has a vision whereby construction projects should consider becoming environmentally friendly with an emphasis on the USGBC LEED Rating SystemAbu DhabiHas a vision whereby construction projects should consider becoming environmentally friendly

ith h i th E tid P l R ti S t (M difi d BREEAM)with an emphasis on the Estidama - Pearl Rating System (Modified BREEAM)


Abu Dhabi and Dubai Requirements


Dubai Requirements

• USGBC LEED• TECOM – SEED Sustainable Energy and Environment Division • EHS LEEDEHS LEED• EGBC LEED• Dubai Municipality DM Circular 161

N D b i M i i lit R l ti b WSP d l d• New Dubai Municipality Regulations by WSP - delayed


USGBC EHS TECOM & EGBCUSGBC, EHS, TECOM & EGBCUSGBC: The United States Green Building Council currently control the LEED certification process for projects in Dubai. p p j

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 TECOMequipment at facilities owned by TECOM.

EHS: have just announced regulations for a LEED assessment on all projects in JAFZ

EGBC The Emirates Green B ilding Co ncil is c rrentl re ie ing LEED credits and EGBC: The Emirates Green Building Council is currently reviewing LEED credits and have adjusted the credits to suit the Middle East construction industry and climate conditions. Pilot version 1 has been released.


D b i M i i li R l iDubai Municipality RegulationsDubai 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 SolutionsWind Turbines Absorption Cooling Grey Water HarvestingWind TurbinesPhotovoltaic PanelsSolar CollectorsC bi H d P

Absorption CoolingNatural VentilationWind Catchers

y gDemand Controlled VentilationAutomatic Lighting ControlHeat/Cooling Recovery AHU’sCombine Heat and Power Heat/Cooling Recovery AHU s


Other Typical Sustainable SolutionsB i S l il V t ti I t lli t F dBrie-SoleilEfficient TransportationGreen RoofsMaterial Selection

VegetationRapidly Renewable Limit VOCCycle Routes

Intelligent FacadesHabitatCertified Woods

Material Selection Cycle Routes


Solar CollectorsSolar Collector systems normally operate with a back up source of heat such as gas Solar Collector systems normally operate with a back-up source of heat, such as gas 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 supplies hence reduce the building energy consumption.


Photovoltaic PanelsPh t lt i (PV) d l t li ht di tl i t DC l t i it f i b ildi th Photovoltaic (PV) modules convert sunlight directly into DC electricity for use in buildings 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 TurbinesWi d t bi t l t i it d b i t ll d /i b ildi th l t i it Wind turbines generate electricity and can be installed on/in buildings, the electricity 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 Excess electricity is normally placed onto the grid and then drawn back later.


Part 2 – Design ProcessHolistic Approach Holistic Approach

Sustainability Selection Matrix ProcessThermal ModellingThermal Modelling

Cost Effective Sustainable SolutionsConclusion


H li i A hHolistic Approach• Client Understanding

Environmental

MEPReduce EnergyRenewable Sources

• Team Understanding• Regulations and Assessments• Target Setting• Sustainable Technologies

EnvironmentalEIA Waste Management

Infrastructure• Sustainable Technologies• All Disciplines• Sustainable Workshops• Options

Sustainability

StructuresMaterial Selection

Water ConservationWind Farms

p• Critical Criteria• Charrettes• Design Team Meetings

Material Selection Concrete & Steel

ArchitecturalBuilding OrientationG R fGreen Roofs


Sustainability Selection Matrix Process


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


Sustainability Selection Matrix Process• 5No - Potential Sustainable Options5No Potential Sustainable Options• Option Criteria Review

• Option Description • Environmental Performance• Option Description• Installation Requirements• Build-Ability

Ti li I li i

Environmental Performance• Capital cost• Payback Periods

M i t I• Timeline Implications• Advantages of the Option• Disadvantages of the Option

• Maintenance Issues• Option Conclusion


Sustainability Selection Matrix Process• Critical Option Selection CriteriaCritical Option Selection Criteria

• Timeline Implications• Environmental Performance• Capital Cost• Pay-Back Periods

M i t I• Maintenance Issues


Sustainability Selection Matrix Process• Weighting FactorWeighting Factor

ITEM CRITICALOPTION SELECTION CRITERIA WEIGHTING FACTOR

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


Sustainability Selection Matrix Process• Scoring SystemScoring System

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

POINTS

SCORE 1 2 3 4 5


Project TitleSustainability Selection Matrix

Project TitleSustainability Selection Scoring Matrix

d

Process

Capital Cost

Environm

ental

Timeline

Pay Ba

ck Perio

Mainten

ance

ScoreWeightings

Option Description Points / Total % 40% 30% 15% 10% 5%

1 Etc etc etcPoint Score 5 5 2 2 4

84%Total Percentage Score 40% 30% 6% 4% 4%

2 EPoint Score 4 2 1 1 5

54%2 Etc etc etc 54%Total Percentage Score 32% 12% 3% 2% 5%





5 Et t tPoint Score 1 3 5 5 1

52%5 Etc etc etc 52%Total Percentage Score 8% 18% 15% 10% 1%


Thermal ModellingThermal Modelling


Thermal Modelling• Required to satisfy environmental assessment methods

M d l i b ilt th t i d ti• Model is built as per the matrix recommendations• Two Models

• Notional Building• Actual Designed Building• Actual Designed Building

• The whole team evaluate the results• Creates a complete annual load profile for the building • Further refined sustainable design solutions• Further refined sustainable design solutions• Re- simulate• Final design in line with the Thermal Model


Cost Effective Design Solution Cost Effective Design Solution


Cost Effective Design Solution• Assessments and Regulations Requirements (Set the Target)g q ( g )• Capital and Running Cost Evaluated as part of the Option Analysis • Selection Matrix Considers Cost Score Weighting Process• Thermal Model Target Analysis• 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 Changey p g• Abu Dhabi and Dubai - LEED, Estidama and Regulations• Typical Sustainable Technologies• Holistic Approach• Holistic Approach• Achieve Assessment and Regulation Requirements• Sustainable Selection Matrix • Cost Effective Sustainable Solutions• Thermal Modelling• Team Evaluation and Final Design Solutionsg

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Bill Jolly 3rd Annual Conference On Cost Effective Sustainability

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