cdm opportunities in bangladesh and priority sectors presented by ijaz hossain chemical engineering...
TRANSCRIPT
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CDM Opportunities in Bangladesh and Priority Sectors
Presented by Ijaz Hossain Chemical Engineering Department BUET [email protected]
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Greenhouse Effect
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The main greenhouse gases (GHGs) The Convention concerns all greenhouse gases not covered by the 1987 Montreal Protocol to the United Nations Convention on Protection of the Ozone Layer. The focus of the Kyoto Protocol is on the following six:
●Carbon dioxide (CO2)
● Methane (CH4)
● Nitrous oxide (N2O)
● Hydrofluorocarbons (HFCs)
● Perfluorocarbons (PFCs)
● Sulphur hexafluoride (SF6)
The first three are estimated to account for 50, 18 and 6 per cent, respectively, of the overall global warming effect arising from human activities. The HFCs and PFCs are used as replacements for ozone-depleting substances such as chlorofluorocarbons (CFCs) being phased out under the Montreal Protocol
© UNFCCC 2003
NOTE: N2 and O2 are not GHGs
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FOSSIL FUELS
OIL
GAS
COAL
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What is CDM ?
Cost effective way of reducing greenhouse gas (GHG) emission globally
i.e.
Reducing GHG in Developing Countries instead of in Developed Countries
Greenhouse Gas Mitigation
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Developed Country
Need GHG credits Too Expensive in Country
Developing Country
Need Money + Technology Cheap to reduce GHG
$
GHG credits
HOW CDM WILL WORK
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What are baselines?
– X represents avoided tons in a given time period
– Actual project performance may differ from projected
– X1 represents CERs for the period
Baseline: scenario without CDM project
Project actual
Project projection
X
t CO2
X1
time2008
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© UNFCCC 2003
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Energy Savings
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
2005 2010 2015 2020 2025 2030
YEAR
Mill
ion
To
ns
of
Oil
Eq
uiv
alen
t
Business-as-usual
Efficient
> 18 Mtoe 2005 consn Total Savings in 25 years = 160 Mtoe
2005 0% 2010 5% 2015 10% 2020 15% 2025 20% 2030 25%
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How CDM Can Help Private Sector in Bangladesh?
Developing countries in the process of achieving fast economic growth often
have to settle for inferior technologies. These technologies more often than not
consume more energy than state-of-the-art or advanced technologies. CDM
allows a more energy efficient (or less GHG emitting) technology to be
installed.
Therefore, through CDM an entrepreneur can:
Opt for a better technology resulting in cost savings;
Be able to comply easily with the Department of Environment's regulations;
Have a safer and cleaner plant; and
Contribute to sustainable development and to global environmental protection.
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Potential Sectors for CDM Projects in Bangladesh
Energy – both supply side and demand side
Waste
Forestry
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1. Switching from more carbonintensive fuels to less carbonintensive fuels or renewables
2. Replacing an inefficientdevice by an efficient one
3. Increasing the efficiency of anexisting device
4. Modifications of a process sothat it consumes less fossilfuel
TYPES of ENERGY SECTOR CDM PROJECTS
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TYPES of ENERGY SECTOR CDM PROJECTS (cont.)
5. Waste heat utilization either fromelectricity generators (turbines orengines) or high temperatureprocesses
6. Greenfield projects
7. Lowering energy consumptionthrough building design andmaterials
8. Conservation (behavioral changeswhich consumes less energy)
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1. Switching from more carbonintensive fuels to less carbonintensive fuels or renewables
I. Replacing coal by natural gasin brickfields
II. Replacing diesel buses bydedicated CNG buses
III. Solar home systems (PV)
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2. Replacing an inefficient deviceby an efficient one
I. Incandescent bulbs toCompact Fluorescent Lamps
II. Efficient motors and boilers
III. Efficient grinders in cementindustries
IV. Efficient machines andgenerators
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3. Increasing the efficiency of anexisting device
I. Retrofitting boilers and motors
II. Improved insulation andhousekeeping (re-rolling mills)
III. Vehicle maintenance
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4. Modification of a process so thatit consumes less fossil fuel
I. Pulping using Continuous digestersin place of Batch digesters
II. Replacing the wet process ofcement manufacture by the dryprocess in the Chattak CementFactory
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5. Waste heat utilization either fromelectricity generating units orhigh temperature processes
The first option is also known asCogeneration, which can beemployed in Sugar Mills; Pulp andPaper Mills; Textile Mills; Jute Mills,Cold Storages and in TeaManufacturing.
The second option can be employedin Ceramic Industries.
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6. Greenfield projects (i.e. using an entirelydifferent process in a new project to accomplish thesame outputs as the baseline)
I. Vertical Shaft Brick Kiln (VSBK) forbrick making
II. Hoffman Kiln, which uses naturalgas, is a greenfield project withfuel switching
III. State-of-the-art Re-rolling Mills
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7. Lowering energy consumptionthrough building design and materials
I. Solar reflective glass windowsto reduce air-conditioning load
II. Design buildings to havewindows facing south
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8. Conservation (behavioral changeswhich consumes less energy)
I. Car pooling
II. Using mass transit systemsinstead of personalizedtransport modes
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CDM – Methane Options
• Methane recovery from landfill with or without electricity generation
• Composting of urban solid waste
• Biogas from a wide variety of wastes, such as (a) poultry droppings (b) tannery waste (c) effluent from food processing industries (d) human excreta, and (e) sewage, to replace fossil fuel
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CDM – Carbon Dioxide Options
• Solar home systems in off grid areas
• Efficient lamps to replace incandescent light bulbs
• Fuel substitution and efficiency improvement in brick manufacturing
• Industrial Cogeneration (e.g. Sugar, Textile, Pulp and Paper)
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Standard Cheap High Energy Use Short Life
State-of-the-art Expensive Low Energy Use Long Life
Technology A
Technology B
ENERGY EFFICIENCY
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INCANDESCENT BULB
COMPACT FLUORESCENT LAMP
HIGH COST BARRIER
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Cold Storage Cogeneration Energy Flow in a Retrofitted Cluster
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Bull’s Trench Kiln (BTK)
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Fixed Chimney Kiln (FCK)
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Solar
Wind
Biomass
Bio-diesel From: Varenda Rherir Tel Jamalgota
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Grameen Shakti Presents Rural-Based Solar Home System Model At
WIREC
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BIODIESEL
Vegetable oil (soybean, palm, jatropha, etc.) can be converted (transesterification) into a diesel like substance (complete substitute of diesel)
At $70-80 barrel of OIL – Biodiesel can compete with oil
Indonesia doing biodiesel in a big way – clearing up an area the size of Denmark
Good CDM in terms of CER, but concerns about FOOD SECURITY
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Feedstock for Biodiesel
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Improved Biomass Cookstove
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Biogas Digestor
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Biogas can Replace LPG
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Biogas can Replace NRB (Non Renewable Biomass)
Deforestation
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Social Forestry
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ORGANIC WASTE Greenhouse Gas Reduction at
Landfills Methane generated in landfills is considered to come from anaerobic decomposition of organic biomass The collection and combustion of landfill gas can be considered to reduce greenhouse gas emissions by more than 95%
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Example of GHG Reduction with MSW
VERMINSSpreading more than
40 Diseases
METHANE GASBad Odor &Green Housegas
LEACHATEPolluting Ground & Surface Water