SlideShare a Scribd company logo
SEMINAR
ON
OCEAN THERMAL
ENERGY CONVERSION
SUBMITTED BY:
AKSHAY V
EE S6
ROLL NO:9
Introduction to OTEC
• The oceans cover a little more than 70 percent of the Earth's
surface.
• This makes them the world's largest solar energy collector and
energy storage system.
• On an average day, 60 million square kilometers (23 million
square miles) of tropical seas absorb an amount of solar
radiation equal in heat content to about 250 billion barrels of
oil.
Achievements In OTEC
• In 1881, Jacques Arsene d'Arsonval, a French physicist, was
the first to propose tapping the thermal energy of the ocean.
• Georges Claude, a student of d'Arsonval's, built an
experimental open-cycle OTEC system at Matanzas Bay,
Cuba, in 1930.
• The system produced 22 kilowatts (kW) of electricity by using
a low-pressure turbine. In 1935, Claude constructed another
open-cycle plant, this time aboard a 10,000-ton cargo vessel
moored off the coast of Brazil.
Achievements In OTEC…
Applications
• Ocean thermal energy conversion (OTEC) systems have many applications
or uses.
• OTEC can be used to generate electricity, desalinate water, support deep-
water mariculture, and provide refrigeration and air-conditioning as well as
aid in crop growth and mineral extraction.
Electricity Production
• Two basic OTEC system designs have been demonstrated to
generate electricity: closed cycle and open cycle.
Closed-Cycle OTEC System
• In the closed-cycle OTEC system, warm seawater
vaporizes a working fluid, such as ammonia, flowing
through a heat exchanger (evaporator).
Open-Cycle OTEC System
• In an open-cycle OTEC system, warm seawater is the working fluid. The
warm seawater is "flash"-evaporated in a vacuum chamber to produce
steam at an absolute pressure of about 2.4 kilopascals (kPa).
Hybrid OTEC System
• A hybrid cycle combines the features of both the closed-cycle and open-
cycle systems.
• In a hybrid OTEC system, warm seawater enters a vacuum chamber where
it is flash-evaporated into steam, which is similar to the open-cycle
evaporation process.
Benefits of OTEC
• Helps produce fuels such as hydrogen, ammonia, and
methanol .
• Produces base load electrical energy.
• Produces desalinated water for industrial, agricultural, and
residential uses .
• Is a resource for on-shore and near-shore mariculture
operations.
• Provides air-conditioning for buildings.
• Provides moderate-temperature refrigeration.
DISADVANTAGES
• OTEC produced electricity at present would cost more than
electricity generated from fossil fuels at their current costs
• Otec plants must be located where a difference of about 20
degree celcius occurs year arround .ocean depths must be
available fairly to close to shore facilities for economic
• No energy company will put money in this project because it
only had been tested in a very small scale
• Construction of OTEC plants in coastal waters may cause
localised damage to marine ecosystems
Needed Research
• Obtain data on OTEC plant operation with appropriately sized
demonstration plants.
• Conduct further research on the heat exchanger systems to
improve heat transfer performance and decrease costs.
• Conduct research in the areas of innovative turbine concepts
for the large machines required for open-cycle systems.
• Identify and evaluate advanced concepts for ocean thermal
energy extraction.
References
• www.google.com
• www.wikipedia.com
• www.studymafia.org
Thanks

More Related Content

What's hot

Ocean energy
Ocean energyOcean energy
Ocean energy
Deepanshu Shekhar
 
Ocean Thermal Energy Conversion (OTEC)
Ocean Thermal Energy Conversion (OTEC)Ocean Thermal Energy Conversion (OTEC)
Ocean Thermal Energy Conversion (OTEC)
Abhijit Patil
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
Santosh Sahoo
 
Tidal energy
Tidal energyTidal energy
Tidal energy
George Thomas
 
Wave Energy
Wave Energy Wave Energy
Wave Energy
esatoglu
 
Power Point Presentation On OCEAN THERMAL ENERGY CONVERSION
Power Point Presentation On  OCEAN THERMAL ENERGY CONVERSIONPower Point Presentation On  OCEAN THERMAL ENERGY CONVERSION
Power Point Presentation On OCEAN THERMAL ENERGY CONVERSION
Anik Samaddar
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
Suman Sourabh
 
Ocean Thermal energy conversion (OTEC)
Ocean Thermal energy conversion (OTEC)Ocean Thermal energy conversion (OTEC)
Ocean Thermal energy conversion (OTEC)
Patnam Shruthi
 
Geothermal Energy (power point presentaion)
Geothermal Energy (power point presentaion)Geothermal Energy (power point presentaion)
Geothermal Energy (power point presentaion)
Anubhavverma51
 
OTEC
OTECOTEC
Ocean thermal energy conversion
Ocean thermal energy conversionOcean thermal energy conversion
Ocean thermal energy conversion
Pankaj Kumar
 
Ocean energy ppt azhar
Ocean energy ppt azharOcean energy ppt azhar
Ocean energy ppt azhar
AZHARSHAH30
 
Wave Power
Wave Power Wave Power
Wave Power
Seminar Links
 
Tidal energy
Tidal energyTidal energy
Tidal energy
keepcalm98
 
OTEC
OTECOTEC
Unit v geothermal energy ,renewable energy sources,ORO551
Unit  v geothermal energy ,renewable energy sources,ORO551Unit  v geothermal energy ,renewable energy sources,ORO551
Unit v geothermal energy ,renewable energy sources,ORO551
Dr SOUNDIRARAJ N
 
SOLAR THERMAL PLANT
SOLAR THERMAL PLANTSOLAR THERMAL PLANT
SOLAR THERMAL PLANT
AJAY RAO
 
Tidal energy technology
Tidal energy technologyTidal energy technology
Tidal energy technology
SoumyaRanjanDas13
 
Tidal energy
Tidal energyTidal energy
Tidal energy
Mrunal Selokar
 
Geothermal energy technologies
Geothermal energy technologiesGeothermal energy technologies
Geothermal energy technologies
Akepati S. Reddy
 

What's hot (20)

Ocean energy
Ocean energyOcean energy
Ocean energy
 
Ocean Thermal Energy Conversion (OTEC)
Ocean Thermal Energy Conversion (OTEC)Ocean Thermal Energy Conversion (OTEC)
Ocean Thermal Energy Conversion (OTEC)
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
 
Tidal energy
Tidal energyTidal energy
Tidal energy
 
Wave Energy
Wave Energy Wave Energy
Wave Energy
 
Power Point Presentation On OCEAN THERMAL ENERGY CONVERSION
Power Point Presentation On  OCEAN THERMAL ENERGY CONVERSIONPower Point Presentation On  OCEAN THERMAL ENERGY CONVERSION
Power Point Presentation On OCEAN THERMAL ENERGY CONVERSION
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
 
Ocean Thermal energy conversion (OTEC)
Ocean Thermal energy conversion (OTEC)Ocean Thermal energy conversion (OTEC)
Ocean Thermal energy conversion (OTEC)
 
Geothermal Energy (power point presentaion)
Geothermal Energy (power point presentaion)Geothermal Energy (power point presentaion)
Geothermal Energy (power point presentaion)
 
OTEC
OTECOTEC
OTEC
 
Ocean thermal energy conversion
Ocean thermal energy conversionOcean thermal energy conversion
Ocean thermal energy conversion
 
Ocean energy ppt azhar
Ocean energy ppt azharOcean energy ppt azhar
Ocean energy ppt azhar
 
Wave Power
Wave Power Wave Power
Wave Power
 
Tidal energy
Tidal energyTidal energy
Tidal energy
 
OTEC
OTECOTEC
OTEC
 
Unit v geothermal energy ,renewable energy sources,ORO551
Unit  v geothermal energy ,renewable energy sources,ORO551Unit  v geothermal energy ,renewable energy sources,ORO551
Unit v geothermal energy ,renewable energy sources,ORO551
 
SOLAR THERMAL PLANT
SOLAR THERMAL PLANTSOLAR THERMAL PLANT
SOLAR THERMAL PLANT
 
Tidal energy technology
Tidal energy technologyTidal energy technology
Tidal energy technology
 
Tidal energy
Tidal energyTidal energy
Tidal energy
 
Geothermal energy technologies
Geothermal energy technologiesGeothermal energy technologies
Geothermal energy technologies
 

Similar to ocean thermal energy conversion(OTEC)

mech Ocean Thermal Energy ppt.pptx
mech Ocean Thermal Energy ppt.pptxmech Ocean Thermal Energy ppt.pptx
mech Ocean Thermal Energy ppt.pptx
abi9952265040
 
OTEC_Seminar_Presentation_Siku_Sahu.docx
OTEC_Seminar_Presentation_Siku_Sahu.docxOTEC_Seminar_Presentation_Siku_Sahu.docx
OTEC_Seminar_Presentation_Siku_Sahu.docx
surjyakantsahoo123
 
OTEC.pptx
 OTEC.pptx OTEC.pptx
OTEC.pptx
rakeshdanu1
 
Ocean thermal energy
Ocean thermal energyOcean thermal energy
Ocean thermal energy
Aryan Paul
 
Ocean power
Ocean powerOcean power
Ocean power
Clement Smith
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
Dr. Fayaz Ahmad Malla
 
OCEAN THERMAL ENERGY CONVERSION
OCEAN THERMAL ENERGY CONVERSIONOCEAN THERMAL ENERGY CONVERSION
OCEAN THERMAL ENERGY CONVERSION
Nitish Kulkarni
 
OTEC new
OTEC newOTEC new
OTEC new
Aman Sharma
 
osean termal -10213600.ppt
osean termal -10213600.pptosean termal -10213600.ppt
osean termal -10213600.ppt
mukhtareffendi2
 
Otec raj.pptx
Otec raj.pptxOtec raj.pptx
Otec raj.pptx
ck137
 
Ocean & geothermal energy
Ocean & geothermal energyOcean & geothermal energy
Ocean & geothermal energy
Bharath Sugumar
 
Otec
OtecOtec
Ocean thermal energy conversion pdf
Ocean thermal energy conversion pdfOcean thermal energy conversion pdf
Ocean thermal energy conversion pdf
KLS GOGTE INSTITUTE OF TECHNOLOGY, BELAGAVI
 
oceanthermalenergyconversion-170122175950.pdf
oceanthermalenergyconversion-170122175950.pdfoceanthermalenergyconversion-170122175950.pdf
oceanthermalenergyconversion-170122175950.pdf
ssuser65cc68
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
Keshav Kumar Jha
 
Hybrid OTEC power plant presentation
Hybrid OTEC power plant presentationHybrid OTEC power plant presentation
Hybrid OTEC power plant presentation
Alok Prakash Singh
 
Ocean Thermal Energy.pptx
Ocean Thermal  Energy.pptxOcean Thermal  Energy.pptx
Ocean Thermal Energy.pptx
NarendraKasana1
 
Ch 9 ocean energy
Ch 9 ocean energyCh 9 ocean energy
Ch 9 ocean energy
TadviDevarshi
 
Ocean Thermal Energy.pptx
Ocean Thermal Energy.pptxOcean Thermal Energy.pptx
Ocean Thermal Energy.pptx
ssuser65cc68
 
Ocean thermal energy conversion
Ocean thermal energy conversionOcean thermal energy conversion
Ocean thermal energy conversion
ThiliniMaheshika2
 

Similar to ocean thermal energy conversion(OTEC) (20)

mech Ocean Thermal Energy ppt.pptx
mech Ocean Thermal Energy ppt.pptxmech Ocean Thermal Energy ppt.pptx
mech Ocean Thermal Energy ppt.pptx
 
OTEC_Seminar_Presentation_Siku_Sahu.docx
OTEC_Seminar_Presentation_Siku_Sahu.docxOTEC_Seminar_Presentation_Siku_Sahu.docx
OTEC_Seminar_Presentation_Siku_Sahu.docx
 
OTEC.pptx
 OTEC.pptx OTEC.pptx
OTEC.pptx
 
Ocean thermal energy
Ocean thermal energyOcean thermal energy
Ocean thermal energy
 
Ocean power
Ocean powerOcean power
Ocean power
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
 
OCEAN THERMAL ENERGY CONVERSION
OCEAN THERMAL ENERGY CONVERSIONOCEAN THERMAL ENERGY CONVERSION
OCEAN THERMAL ENERGY CONVERSION
 
OTEC new
OTEC newOTEC new
OTEC new
 
osean termal -10213600.ppt
osean termal -10213600.pptosean termal -10213600.ppt
osean termal -10213600.ppt
 
Otec raj.pptx
Otec raj.pptxOtec raj.pptx
Otec raj.pptx
 
Ocean & geothermal energy
Ocean & geothermal energyOcean & geothermal energy
Ocean & geothermal energy
 
Otec
OtecOtec
Otec
 
Ocean thermal energy conversion pdf
Ocean thermal energy conversion pdfOcean thermal energy conversion pdf
Ocean thermal energy conversion pdf
 
oceanthermalenergyconversion-170122175950.pdf
oceanthermalenergyconversion-170122175950.pdfoceanthermalenergyconversion-170122175950.pdf
oceanthermalenergyconversion-170122175950.pdf
 
Ocean Thermal Energy Conversion
Ocean Thermal Energy ConversionOcean Thermal Energy Conversion
Ocean Thermal Energy Conversion
 
Hybrid OTEC power plant presentation
Hybrid OTEC power plant presentationHybrid OTEC power plant presentation
Hybrid OTEC power plant presentation
 
Ocean Thermal Energy.pptx
Ocean Thermal  Energy.pptxOcean Thermal  Energy.pptx
Ocean Thermal Energy.pptx
 
Ch 9 ocean energy
Ch 9 ocean energyCh 9 ocean energy
Ch 9 ocean energy
 
Ocean Thermal Energy.pptx
Ocean Thermal Energy.pptxOcean Thermal Energy.pptx
Ocean Thermal Energy.pptx
 
Ocean thermal energy conversion
Ocean thermal energy conversionOcean thermal energy conversion
Ocean thermal energy conversion
 

Recently uploaded

Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
WaniBasim
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
National Information Standards Organization (NISO)
 
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental DesignDigital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
amberjdewit93
 
Advanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docxAdvanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docx
adhitya5119
 
How to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP ModuleHow to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP Module
Celine George
 
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdfANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
Priyankaranawat4
 
Smart-Money for SMC traders good time and ICT
Smart-Money for SMC traders good time and ICTSmart-Money for SMC traders good time and ICT
Smart-Money for SMC traders good time and ICT
simonomuemu
 
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movieFilm vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
Nicholas Montgomery
 
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxChapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Mohd Adib Abd Muin, Senior Lecturer at Universiti Utara Malaysia
 
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...The simplified electron and muon model, Oscillating Spacetime: The Foundation...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
RitikBhardwaj56
 
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
GeorgeMilliken2
 
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold MethodHow to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
Celine George
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Excellence Foundation for South Sudan
 
How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17
Celine George
 
Digital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments UnitDigital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments Unit
chanes7
 
World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024
ak6969907
 
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Dr. Vinod Kumar Kanvaria
 
PIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf IslamabadPIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf Islamabad
AyyanKhan40
 
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRMHow to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Celine George
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
Academy of Science of South Africa
 

Recently uploaded (20)

Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
 
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental DesignDigital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
 
Advanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docxAdvanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docx
 
How to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP ModuleHow to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP Module
 
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdfANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
 
Smart-Money for SMC traders good time and ICT
Smart-Money for SMC traders good time and ICTSmart-Money for SMC traders good time and ICT
Smart-Money for SMC traders good time and ICT
 
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movieFilm vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
 
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxChapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
 
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...The simplified electron and muon model, Oscillating Spacetime: The Foundation...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
 
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
 
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold MethodHow to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
 
How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17How to Make a Field Mandatory in Odoo 17
How to Make a Field Mandatory in Odoo 17
 
Digital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments UnitDigital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments Unit
 
World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024
 
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
 
PIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf IslamabadPIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf Islamabad
 
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRMHow to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
 

ocean thermal energy conversion(OTEC)

  • 2. Introduction to OTEC • The oceans cover a little more than 70 percent of the Earth's surface. • This makes them the world's largest solar energy collector and energy storage system. • On an average day, 60 million square kilometers (23 million square miles) of tropical seas absorb an amount of solar radiation equal in heat content to about 250 billion barrels of oil.
  • 3. Achievements In OTEC • In 1881, Jacques Arsene d'Arsonval, a French physicist, was the first to propose tapping the thermal energy of the ocean. • Georges Claude, a student of d'Arsonval's, built an experimental open-cycle OTEC system at Matanzas Bay, Cuba, in 1930. • The system produced 22 kilowatts (kW) of electricity by using a low-pressure turbine. In 1935, Claude constructed another open-cycle plant, this time aboard a 10,000-ton cargo vessel moored off the coast of Brazil.
  • 5. Applications • Ocean thermal energy conversion (OTEC) systems have many applications or uses. • OTEC can be used to generate electricity, desalinate water, support deep- water mariculture, and provide refrigeration and air-conditioning as well as aid in crop growth and mineral extraction.
  • 6. Electricity Production • Two basic OTEC system designs have been demonstrated to generate electricity: closed cycle and open cycle.
  • 7. Closed-Cycle OTEC System • In the closed-cycle OTEC system, warm seawater vaporizes a working fluid, such as ammonia, flowing through a heat exchanger (evaporator).
  • 8. Open-Cycle OTEC System • In an open-cycle OTEC system, warm seawater is the working fluid. The warm seawater is "flash"-evaporated in a vacuum chamber to produce steam at an absolute pressure of about 2.4 kilopascals (kPa).
  • 9. Hybrid OTEC System • A hybrid cycle combines the features of both the closed-cycle and open- cycle systems. • In a hybrid OTEC system, warm seawater enters a vacuum chamber where it is flash-evaporated into steam, which is similar to the open-cycle evaporation process.
  • 10.
  • 11. Benefits of OTEC • Helps produce fuels such as hydrogen, ammonia, and methanol . • Produces base load electrical energy. • Produces desalinated water for industrial, agricultural, and residential uses . • Is a resource for on-shore and near-shore mariculture operations. • Provides air-conditioning for buildings. • Provides moderate-temperature refrigeration.
  • 12. DISADVANTAGES • OTEC produced electricity at present would cost more than electricity generated from fossil fuels at their current costs • Otec plants must be located where a difference of about 20 degree celcius occurs year arround .ocean depths must be available fairly to close to shore facilities for economic • No energy company will put money in this project because it only had been tested in a very small scale • Construction of OTEC plants in coastal waters may cause localised damage to marine ecosystems
  • 13. Needed Research • Obtain data on OTEC plant operation with appropriately sized demonstration plants. • Conduct further research on the heat exchanger systems to improve heat transfer performance and decrease costs. • Conduct research in the areas of innovative turbine concepts for the large machines required for open-cycle systems. • Identify and evaluate advanced concepts for ocean thermal energy extraction.

Editor's Notes

  1. 1