Upload
antoine-loup
View
2.122
Download
5
Tags:
Embed Size (px)
DESCRIPTION
Dramatic energy use in the Middle East continues to create problems. This presentation goes through real world solutions that can be cost effectively implemented and contribute to a sustainable world view.
Citation preview
Ali E. H. Hajiah, PhD
ENERGY CONSERVATION PROGRAM IN KUWAIT:
A LOCAL PERSPECTIVE
Department of Building and Energy Technologies
Environment and Urban Development Division
Kuwait Institute for Scientific Research
Fifteenth Symposium on Improving Building Systems in Hot and Humid Climates, Orlando, FL, July 24-26,
2006
Due to heavy use of air conditioning, reliance on desalination for water, and highly subsidized electricity prices, Kuwait's per capita electricity consumption is amongst the highest in the world.
ENERGY CONSERVATION PROGRAM IN KUWAIT: A LOCAL PERSPECTIVE Ali E. H. Hajiah, PhD; Kuwait Institute for Scientific Research
In Kuwait, nearly 300-350 MW power is added every year only to satisfy the growing demand of the
A/C systems
ENERGY CONSERVATION PROGRAM IN KUWAIT: A LOCAL PERSPECTIVE Ali E. H. Hajiah, PhD; Kuwait Institute for Scientific Research
Kuwait
• Seven months of summer
• Temperatures over 50 C.
• “Air-conditioning of buildings is the single largest consumer of electricity and accounts for nearly 75% of nation’s peak power demand and over 50% of annual energy consumption. “
ENERGY CONSERVATION PROGRAM IN KUWAIT: A LOCAL PERSPECTIVE Ali E. H. Hajiah, PhD; Kuwait Institute for Scientific Research
• MEW is spending nearly 80 million Kuwaiti Dinars at 400 KD/kW every year to add additional power generation and distribution.
• The amount spent annually on fuel to generate electricity for the operation of the A/C systems is well over 90 million KD (MEW, 2002).
ENERGY CONSERVATION PROGRAM IN KUWAIT: A LOCAL PERSPECTIVE Ali E. H. Hajiah, PhD; Kuwait Institute for Scientific Research
ENERGY CONSERVATION PROGRAM IN KUWAIT: A LOCAL PERSPECTIVE Ali E. H. Hajiah, PhD; Kuwait Institute for Scientific Research
ENERGY CONSERVATION PROGRAM IN KUWAIT: A LOCAL PERSPECTIVE Ali E. H. Hajiah, PhD; Kuwait Institute for Scientific Research
• Power demand is expected to continue increasing at 7-9 percent a year, necessitating construction of new generating capacity.
• According to government estimates, roughly $3.6 billion in further investment is needed by 2010.
<http://www.eoearth.org/article/Energy_profile_of_Kuwait
September 14, 2009
GE Energy announced that the Kuwait Ministry of Electricity and Water signed a $2.65 billion
USD contract for a new power plant
Kuwait’s robust business and residential growth has strained the country’s power generation capability, resulting in power outages during
the hot summer months.
http://www.zawya.com/Story.cfm/sidZAWYA20090914093137
From the Energy Information Administration:
Kuwait seeks to significantly increase its use of natural gas in electricity generation, water desalination, and petrochemicals to free up as much as 100,000 barrels per day of oil for export.
http://www.eia.doe.gov/emeu/cabs/Kuwait/Full.html
Kuwait Consumption & Imports
In 2006, an annual basis - natural gas consumption matches production.
Kuwait’s electricity demand, has outpaced natural gas production during the summer months.
Result is the shutdown of refinery and petrochemical operations to meet the increased demand in electricity.
http://www.eia.doe.gov/emeu/cabs/Kuwait/Full.html
By 2014 regional energy demand is forecasted to have a 25.1% growth over
the period since 2009.
Kuwait's thermal power generation is forecast to rise 70.2% between 2009 and 2019 by Mike Kinghttp://www.pr-inside.com/kuwait-s-thermal-power-generation-is-r1724985.htm
• Reduce Electrical Demand
• Increase Energy Exports
• Reduce Energy Imports
• Provide More Reliability
• Provide a Better Environment
GOALS
Our world is changing…
we need to change with it.
Our Designs, our Products, our Processes
Lawrence Berkeley National Laboratory Heat Island
Study
Heat Island (Atlanta)
Less Vegetation more black asphalt
(roofs & parking lots)
Heat Island…5-7 degrees warmer
Los Angeles Heat Island
• With increasing irrigation & orchards, LA cooled 5ºF until the 1930’s
• As orchards gave way to hot roofs & pavements, LA warmed 6 ºF to 1980
Dr. Lisa Gartland, Principal Engineer, Positive Energy
Lawrence Berkeley National Laboratory Heat Island
Study
One degree increase in air temperature raises energy demand by two percent …and
raises smog by three percent
36% of total energy use
65% of electricity consumption
30% of greenhouse gas emissions
30% of raw materials use
30% of waste output/136 million tons annually
12% of potable water consumption
data from USGBC Website
Buildings account for…
Heat Transfer
Where there is a temperature difference between objects in proximity, heat transfer between them can never be stopped; it can
only be slowed down.
SOLAR RADIATION
Infrared (thermal) heat rays travel…
•With the greatest intensity perpendicular to the surface.
•With the least intensity parallel with the receiving surface (zero intensity).
SOLAR RADIATIONSOLAR RADIATION
• A 7 story building is exposed to more radiation on the walls than on the roof.
• A single story building receives 70% of it’s solar radiation on the roof.
Radiation Exposure
SOLAR RADIATION
Environmental Factors
Cannot be manipulated:
• Ambient air temperature
• Solar radiation
• Wind
Building Material Factors
Can be manipulated:
• Material resistivity (r-value)
• Surface Solar reflectivity
• Surface Solar absorptivity
• Surface Thermal radiation emissivity
Heat Transfer and Buildings
The best way to reduce heat transfer:
Prevent it from entering the building.
The best way to manage heat transfer:
Re-emit it quickly.
Solutions That Require Large Scale Investments
• Calls for…
taking the necessary procedures to preserve environment & natural resources, & the optimal use of it to achieve sustainable development.
…and take action to limit the impact of climate change & its repercussions on Arab societies.
Kuwait Declaration
http://www.da.gov.kw/eng/articles/arab_economic_summit_2009_speeches.php?p=summit_declaration
History• In 1995, the Kuwait Environment Public Authority (EPA) was created.
• With the help of the ESCWA (the Economic Commission for Western Asia (ECWA) in 2005 set forth an environmental strategy with three types of objectives:
the reduction of the rate of pollution;
introduction of the environmental dimension in policies, plans and national programs;
the protection of the national resources and the biodiversity in the context of sustainable development. (LEED)
“The adoption of such strategies can hardly be considered as a luxury in all Gulf countries; in which environmental problems are somewhat similar”.
http://www.escwa.un.org/divisions/pptcdadvisors.asp?id=12
QuestionsCan Kuwait avoid the need to build new power plants?
Can economic competitiveness be increased?
Can health conditions be improved ?
Can building maintenance and operation costs be decreased?
Can green house gas emissions be reduced?
HOW?
A Radiant Heat Barrier…
Reduces surface temperatures by as much as 20˚ C
Reflects at least 70% of radiant heat
Limits radiant heat absorption between 15% and 20%
Emissivity level of 90% quickly reducing heat transfer
Reduces energy consumption by as much as 40%
Florida Power & Light Company
Reflective roof surfaces
$0.45 per square foot of reflective roof
When the retrofit application reflects at least 73% of the sun’s heat.
San Antonio, TX
• CPS Energy
• The Largest Municipally Owned Energy Company in the Nation
• (Provides Both Gas and Electricity)
Residential Cool Roof Rebate$0.20 per square foot.
Must be ENERGY STAR® cool roof products.
$0.10 per Sq. Ft. for Commercial Roofs
• Rated reflectivity must be measured by test method ASTM E424-71, ASTM E903-96
• Must have a minimum reflectivity of 75%.
California
Low - Sloped Roofs: $.20 per sq ft
Steep-sloped: $.10 - $.20 per sq ft.
The USA Federal Energy Policy Act of 2005
• Commercial buildings are eligible for tax deductions up to $1.80 USD per square foot.
• Many buildings are eligible for improvements completed within the normal course of business.
• For municipal buildings, benefits are passed through to the primary designers/architects in an attempt to encourage innovative municipal design.
Hashem Akbari Heat Island GroupLawrence Berkeley National Laboratory
• Cool roof standards are designed to reduce a/c demand, save money, and save emissions.
• In Los Angeles they will eventually save $100,000 per hour.
• Each 25m2 of cool roof offsets 1 ton of CO2
REDUCE PEAK DEMAND
A reflective roof can reduce peak cooling demand by 10-15%.
Power Grid Benefits with“Cool Roofs”
Utility Grid/Operator Benefits Reduced need for infrastructure spending
Generation
Transmission
Local Distribution
Mitigation of System Peaks
Reduced Spending will lower rates over long term
Department of Energy
DOE “Cool Roof” Calculator shows substantial savings in Puerto Rico.
DOE…PR Solar reflectance
Net Savings
• Since 2005 California has required most flat-roofed buildings to be white.
• 75% of Wal-Mart stores in the US have installed “cool roofs”.
• Washington, D.C. will require new flat roofs on commercial buildings to be covered in vegetation or a reflective material.
Hashem Akbari
"It buys us precious time" to figure out ways to limit greenhouse-gas emissions or remove the gases from the atmosphere. “
"It basically buys us time until we come up to our senses."
1998 US established theCool Roof Rating Council
First products rated in 2003.
2009 EU established its Cool Roof Rating Council
Cool “white” roofs are not new, used for thousands of
years (e.g. Greece,
Santorini)
“Cool Roofing”…Why?
• Environmental Benefits
• Economic Benefits
• Health & Community Benefits
Environmental benefits:
Enhance and protect ecosystems and biodiversity
Reduce waste - Nothing added to landfills
Conserve natural resources
Sustainable…extends life of roof
• Renewable every 10 years
Economic benefits:
• Reduce operating costs
• Enhance asset value and profits
• Improve employee productivity, safety and
satisfaction
• Optimize life-cycle economic performance
Health and community benefits:
• Improve air, thermal and acoustic
environments
• Minimize strain on local infrastructure
• Mitigate Heat Island Effect
• Lower roof top and building temperatures• Less heat transfer
• Increased occupant comfort
• Reduced AC load• Lower building occupant’s electricity bills
» Up to 40% reduction in cooling costs
• Reduce peak electricity demand (avoid black-outs)
• LBNL estimates Worldwide energy savings of $27 billion (2008)
Health and community benefits:
“Cool Roof”
Cost vs. Benefits
Good design, but is it
economically feasible?
Economics
Astec Roof Coatings:
• No need to tear off old roof.
• No need to raise equipment on roof.• No Facility Downtime
• Makes most roofs better than original.
Economics
Astec Roof Coatings:
• Reduced Air-Conditioning Demand• Equipment lasts longer
• Sustainable, Renewable…lower life-cycle cost.
• Substantial savings over other conventional roofing systems... Up to 50% savings
Cool Roofing Energy Savings
“Cool” roof systems will eventually pay for themselves and continue to pay a
premium.
Energy Savings Demonstrated
Dr. Lisa Gartland, Principal Engineer, Positive Energy
Cool Roof Coating Case Study:
Paulding County, GA
Thermostats Controlled at District Office
Both Facilities 90,000 SQ.FT.
Dr. Lisa Gartland, Principal Engineer, Positive Energy
Cool Roof Coating Results
1st Year Savings
$8,054 USD
Total Electricity Reduction 13 %
Projected 35 Year Savings
$282,000 USD
Dr. Lisa Gartland, Principal Engineer, Positive Energy
Cool Roof Coating Demonstrated Savings
• Evaporative cooling system was undersized
• Store was well over 85°F on some afternoons
• Instead of adding cooling capacity - installed a cool coating
Dr. Lisa Gartland, Principal Engineer, Positive Energy
Initial solar reflectivity of 31%, after coating 74%
Initial max temperature 170°F, after coating 120°F
Used 10% less cooling energy
Always 85°F or less in store
Optimal comfort (below 79 F and 60% relative humidity) for 10 more shopping hours a week
Dr. Lisa Gartland, Principal Engineer, Positive Energy
Cool Roof Coating Demonstrated Savings
Savings of
$500,000 USD over Replacement
Savings of an
Est. $600,000 over Replacement
Savings of
$1.5 Million USD
over Replacement
Cool Roofs = Good EconomicsCool Roofs = Good Economics
REDUCES
TEMPERATURES
“…almost immediately the room temperature inside was cooled by 19° F.”
-Donald E., Yakima Ice Arena
FOR
COLD STORAGE
COLD STORAGE & WAREHOUSING
“Our engineering department reported
that the plant is consuming less energy …”
-Vice President, Rainier Cold Storage & Ice
Airport Hanger:
The concrete pad in front of the hanger: 107 ̊ F / 42 ̊ C
The underside of the roof of an adjoining hanger:164 ̊ F / 73 ̊ C
The temperature on the underside of the Astec roof:98 ̊ F / 37 ̊ C
Galveston, Texas• Prior
• Ambient: 95 ̊ F / 35 ̊ C
• Inside: 119 ̊ F / 48 ̊ C
• Surface 173 ̊ F / 78 ̊ C
• 2 hours after
• Ambient: 95 ̊ F / 35 ̊ C
• Inside: 97 ̊ F / 36 ̊ C
• Surface 104 ̊ F / 40 ̊ C
“In the past, we have struggled to maintain minus 12° F / -11° C … Since the application, we have been able to maintain minus 15° F / -9° C or less.”
-Plant Superintendent, Land-O-Sun Dairies
الحماية الحرارية
Thermal Protection
درع شمسي
Solar Shield
Cool Roofing improves insulation performance
• “The thermal resistance of insulation installed immediately below a black membrane has been found to be up to 30% lower than advertised, when measured at peak summertime temperatures in Austin, Texas.”
-Konopacki and Akbari
Provide durable / flexible surfaces
Protect from Ultra-violet degradation
Eliminates/minimizes roof tear-off
Sustainable, Renewable, lower life-cycle cost
Fluid Applied Cool Roof Systems
Some Benefits of the Astec Re-Ply and Ceramic Coating Systems:
Save on annual electricity bills by reducing summer air conditioning costs.
Save peak electricity demand.
Reduce roof maintenance and replacement expenses by extending roof life.
Increase indoor comfort in summer by reflecting heat from the roof surface.
Benefits of the Astec Re-Ply and Ceramic Coating Systems:
Reduce the heat island effect in cities and suburbs.
Reduce air pollution and smog formation.
Reduce waste added to landfills.
Help builders and building managers meet Energy Efficiency Building Standards such as Perl, LEED, etc.
INSULATING
COATINGSCORPORATION
On Roofs for over 50 years
History
• Early 60’s Roof Painting Contractor…FL.
• Manufacturing…South Florida
• Ceramic Coating Technology…late 70’s
(started the Ceramic Coating Industry)
• Astec Products started in 1986
Important Affiliations
Important Affiliations
ASTEC PRODUCTS
KNOWLEDGE & INNOVATION
ASTEC PRODUCTS
KNOWLEDGE &
INNOVATION
ASTEC PRODUCTS
KNOWLEDGE & INNOVATION
ASTEC PRODUCTS
• Tom Ennis
• Advanced Formulations
• Advanced Technology
1.3 million square feet currently under contract & 3 million total in Lolita, TX.
استقرار في كافة الظروف المناخية
All Climate Stability
ON THE
OCEAN FRONT
IN THE DESERT
ICC’s Technical Dept.
• Application specs are the most stringent in the industry
• The best 100% acrylic available.
• Field inspections
Insulating Coatings Corporation
All fluid applied products are manufactured by us…no outside
sources
Paint: An aqueous liquid continuous film applied at film thickness' of less than 10 wet mls.
Coating: An aqueous liquid continuous membrane applied at film thickness’ greater than 40 wet mls.
What is the difference between a paint and a coating?
Remain Flexible
Resist standing Water
Excellent Adhesion to a variety of substrates
Resist UV exposure
Applied at greater film thickness for increased flexibility
Resistance to Foot Traffic…tensile strength
Higher Reflectivity and increased emissivity
Benefits of Acrylic Roof Membrane
vs. Paint
An aqueous liquid suspension, applied to roofing
substrates, which dries to a seamless, resilient,
durable membrane which is flexible across a
broad temperature range.
Definition of an Advanced Roof Coating
What is the difference in coatings?
White coatings have good solar reflectance, but…..
Chalks, talc and clay can be added to make the coating white and increase solid content.
They have a higher rate of erosion over advanced roof coatings using titanium and ceramics.
Ceramics dramatically reduce erosion.
Premium resins are superior for adhesion, flexibility and durability.
Binder
Volume Solids
PVC
So what makes a quality Roof Coating?
Volume Solids (VS)
High Quality Coating
Pigments
Resin60% or Greater
Lower Quality Coating
Pigments
Resin less than 50%
Testing - ASTM
Earned credibility in the field
ISO
How to insure you are getting quality products?
Fluid-Applied Membranes
QUALITY
is the only way to go!
Cheap coatings lead to continued roof problems.
Insulating Coatings Corporation
ASTEC Authorized Applicators insure that the applications are done to ASTEC
Specifications.
Burgan One
General Trading & Contracting
BG1
• Established 1992
• Working in the oil industry with KOC for 16 years
• Working with the US Army for 7 years
APPLICATIONS
ROOFING
Restore or Replace?
Big savings over replacement:
Avoid Costly Tear-Off
Eliminate Facility Downtime
Cool Roof Energy Savings
Sustainable
Helps the Planet
Metal Roofs
TREAT & PREVENT CORROSION
New Orleans Conv. Center
Concrete Roofs
Concrete Roof Before
Other Substrates
ASBESTOS / TRANSITE
ASPHALT / EPDM
• Polyurethane Foam
• Hypalon
• PVC
• Stucco
• Vinyl
• Thermoplastic
Other Substrates
Other Applications
CelgeneCellular Therapeutics
Steel Tank Used For: Egg Product Storage
Stabilized Temperatures &
Lowered Energy Costs
Self Storage Facility
Environmental Furnace
US Navy Mobile Facility
Air Ducts
• Continental Airline
• Disney
• American Airlines
• Campbell’s
Duct Work
AC and Air Handlers
Swamp Coolers
Vehicles
MILITARY
APPLICATIONS
• In the United States:
• China Lake, California
• Nellis Air Force Base, Nevada
• Fort Dix, New Jersey
• Aberdeen Proving Grounds, Maryland
US Naval Observatory
United States Air Force
“… After the application of the coating, the average peak temperature in the warehouse area dropped to 86° F, a decrease of 17° F. “
- James A., Capt. USAF Chief RSD of Civil Engineering
Before
After
United States ArmyUnited States Army
“… a 64° F reduction in roof surface temperature, a 23° F reduction in attic temperature and a 10° F reduction in room temperature as a result of the insulative and reflective value of the coating.”
- Benjamin S., Col, Dept. of the Army
Camp Robinson, North Little Rock, AR
Army Reserve
US Army in Kuwait
• Camp Arifjan
• Tent Project
• Thermal Protection
UN-Treated TentTemperature Reading taken on AUG. 6TH,2008
96.4 ̊F AVG
Treated TentTemperature Reading taken on AUG. 6TH,2008
85.6 ̊F AVG
• Un-treated Tent includes a Sun shade on Top
• Un-treated Tent Contains 3 split Units
• Treated Tent includes No Sun shade on Top
• Treated Tent Contains 2 split Units
• Un-treated tent • Removed the third air conditioner
• Same air conditioning units in both tents.
• Treated tent used 26% less energy.
Further Tests….
Water Tanks
“I avoided taking a shower during the noon time, but after you have coated my water tank with Astec, there is no issue with hot water in my house any more, at any time of the day". – Recent Customer in Kuwait
“Astec is amazing, after 4 years the finish on the tanks still look great”
-President, Studer Fertilizer
ON
WALLS
Port of PensacolaPensacola, Florida
Port of PensacolaPensacola, Florida
Public Housing Authority
Public Housing Authority
Senior Public Housing Authority
Senior Public Housing Authority
New Construction
New Construction
New Construction
EXTEND YOUR FACILITY
&
YOUR EQUIPMENT’S
LIFE-CYCLE
SOLVE YOUR
HEAT & WATER
RELATED PROBLEMS
Renewable & Sustainable
Extend the system after 10 years with a recoat.
Only a fraction (40 -70%) of the original cost.
“We can extend the life of existing roofing for a fraction of the cost of conventional roof replacement.” - Benjamin S., Col, Dept. of the Army
Astec Benefits
Radiant Heat Barrier
Reduces Surface Temperatures
Provides more stable internal temperatures
Lower energy costs
Astec Benefits
Sustainable / Renewable Systems
Environmentally friendly
Low VOCs (volatile organic chemicals)
Eliminate tear-offs and landfill usage
Reduce capital expenditures
Astec Benefits
Resists UV Exposure & Thermal Shock
A/C equipment lasts longer
Requires less maintenance
Less surface degradation
For Further Information Please Contact:
Saad Al-YaseenBurgan One General Trading and ContractingTel: +965 22409685 or Tel: +965 22409686Fax: +965 22409551PO Box 29770 Code: 13158 Safat – Kuwaitsaadalyaseen@burganone.comwww.whyreplace.comwww.icc-astec.com
References• http://www.escwa.un.org
• http://www.eia.doe.gov/emeu/cabs/Kuwait/Full.html
• Energy Information Administration (Content source); Langdon D. Clough (Topic Editor). 2008. "Energy profile of Kuwait." In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth June 28, 2007; Last revised September 2, 2008; Retrieved February 15, 2010].
• http://www.eoearth.org/article/Energy_profile_of_Kuwait
• http://www.da.gov.kw/eng/articles/arab_economic_summit_2009_speeches.php?p=summit_declaration
References• ENERGY CONSERVATION PROGRAM IN KUWAIT: A LOCAL
PERSPECTIVE ; Ali E. H. Hajiah, PhD; Kuwait Institute for Scientific Research
• http://www.zawya.com/Story.cfm/sidZAWYA20090914093137
• http://www.goodplanet.org/en/
• Dr. Lisa Gartland, Principal Engineer, Positive Energy
• Kuwait's thermal power generation is forecast to rise 70.2% between 2009 and 2019 by Mike King,http://www.pr-inside.com/kuwait-s-thermal-power-generation-is-r1724985.htm