Power Point Presentation On OCEAN THERMAL ENERGY CONVERSION
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OTEC harnesses the temperature difference between shallow and deep ocean waters to generate electricity. There are two types of OTEC plants - closed-cycle plants that use ammonia as a working fluid and open-cycle plants that use seawater. OTEC is a promising renewable energy source as the oceans hold vast thermal reserves and can generate power continuously. While OTEC development faces challenges related to costs and environmental impacts, many countries are exploring OTEC to reduce dependence on fossil fuels.
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OTEC harnesses the temperature difference between shallow and deep ocean waters to generate electricity. There are two types of OTEC plants - closed-cycle plants that use ammonia as a working fluid and open-cycle plants that use seawater. OTEC could generate up to 88,000 TWh per year of renewable power from the sun's thermal energy stored in the oceans. While expensive currently, OTEC has potential for around-the-clock base load power production and various other uses with minimal environmental impact.
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There are three basic ways to tap the ocean for its energy. We can use
The ocean's waves.
The ocean's high and low tides .
Temperature differences in the water.
1-Wave Energy
Kinetic energy (movement) exists in the moving waves of the ocean. That energy can be used to power a turbine. The wave rises into a chamber. The rising water forces the air out of the chamber. The moving air spins a turbine which can turn a generator.
When the wave goes down, air flows through the turbine and back into the chamber through doors that are normally closed.
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Tidal barrages
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Ocean Thermal Energy Conversion
This document discusses ocean thermal energy conversion (OTEC) and its potential applications. It provides an overview of OTEC, describes lessons learned from past US OTEC programs in the 1970s-1990s, assesses the present situation and barriers to development, and envisions future generations of OTEC that could produce hydrogen or ammonia as energy carriers. The document contains technical details on open-cycle and closed-cycle OTEC systems as well as case studies for Hawaii, Kwajalein Atoll, and American Samoa.
OTEC.pptx
The document discusses ocean thermal energy conversion (OTEC) as a renewable energy source that uses temperature differences between deep and shallow ocean waters. OTEC works on the Rankine cycle to convert this thermal energy into electricity. It has the advantages of being renewable, continuously available, and environmentally friendly but is also expensive and location-dependent. India has potential to generate OTEC due to temperature differences along its coasts and research institutes are working on OTEC projects.
Ocean thermal energy (1).pptx
Ocean thermal energy conversion (OTEC) harnesses the temperature difference between warm surface waters and cold deep ocean waters to generate electricity. The tropical oceans have about a 20°C difference between these waters that can power an OTEC system. OTEC systems pump warm surface water and cold deep water through a heat exchanger and turbine to produce electricity with minimal environmental impact. While capital costs are high currently, OTEC has potential for baseload renewable power due to the constant solar heating of ocean waters.
PJ updated A1 Poster Template NEW(3)
OTEC harnesses the temperature difference between warm surface seawater and cold deep seawater to generate electricity. The aim of the thesis is to explore incorporating OTEC facilities in Nigeria to generate renewable energy and maximize economic benefits. OTEC requires a temperature gradient of 20°C, relative seawater depths of around 1000m, and tropical locations like those along Nigeria's Gulf of Guinea coast. The closed-cycle OTEC system uses ammonia in a pump, heat exchanger, and turbine generator loop to produce electricity from ocean thermal energy.
ocean thermal energy conversion
this ppt explain what is otec, working procedure, types ,history , application ,advantages and disadvantages of otec system
Presentacion Tecnica Manuel Laboy - OTEC r1
This document provides an outline for a presentation on Ocean Thermal Energy Conversion (OTEC). OTEC utilizes the temperature difference between warm surface waters and cold deep ocean waters to drive a heat engine and generate electricity. The presentation discusses the history of OTEC development, types of OTEC systems, evaluation criteria for assessing OTEC as a commercial option, and the social and environmental impacts of OTEC. Key points made include that OTEC is a viable baseload energy technology, has minimal environmental impacts, and offers Puerto Rico an opportunity for sustainable economic development through a clean energy source.
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Harnessing the Power of Ocean Thermal Energy Conversion (2).pptx
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Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
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BRAIN TUMOR DETECTION for seminar ppt.pdf
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Power Point Presentation On OCEAN THERMAL ENERGY CONVERSION
- 1. OTEC OCEAN THERMAL ENERGY CONVERSION By- Anik Samaddar and Debanjan Paul, ME(5th semester), Academy Of Technology
- 2. INTRODUCTION
- 3. ● OTEC harnesses the solar energy absorbed by the oceans to generate electric power. ● It uses the ocean’s naturally available temperature gradient (thermocline), or thermal energy. • Oceans collect 80% of the incident solar energy. •
- 4. ● Up to 88,000 TWh/yr of power could be generated from OTEC without affecting the ocean’s thermal structure. ● Unlike wind or solar energy, ocean thermal energy is available throughout the day, thus eliminating the need to store energy.
- 5. STUDY OF OTEC PLANTS
- 6. CLASSIFICATION BASED ON CYCLE TYPE OPEN CYCLE PLANT CLOSED CYCLE PLANT BASED ON LOCATION LAND BASED PLANT OFF- SHORE PLANT
- 7. CLOSED CYCLE OTEC PLANT ● Low boiling point working fluid is used (e.g. ammonia)
- 8. WORKING PRINCIPLE W = QL - (-QH) ƞ = W/QH = (QL+QH)/QH QH = THΔSH, QL = TLΔSL ΔSL = - ΔSH ƞ = 1 – (TL/TH) Above: Heat Engine diagram
- 9. ● Sea water is itself the working fluid ● Desalinated water is a byproduct OPEN CYCLE OTEC PLANT
- 10. LAND BASED OTEC PLANT Schematic diagram of a land based OTEC plant. Notice how it can be used for irrigation and refrigeration besides power generation.
- 11. OFFSHORE OTEC PLANT Right: A concept of a proposed floating type plant in Puerto Rico Below: A floating type plant off the coast at Keahole Point, Hawaii
- 12. HISTORY
- 14. Extract from Modern Mechanics Magazine (Dec, 1930) featuring a contemporary article on the OTEC plant construction overseen by Georges Claude in Matanzas, Cuba
- 15. Left: OTEC Plant on the ship “Tunisie” off the Brazil coast (1935) Right: OTEC test facility at Keahole Point, Kona, Hawaii (estd. 1974)
- 16. Left: Pipes used for OTEC plant in Tamil Nadu in 2002 Right: The floating OTEC plant off the TN coast
- 17. Construction of the OTEC plant at Kume Island, Okinawa in 2013.
- 19. Map representing the thermoclines across the oceans
- 20. VARIOUS USES OF OTEC
- 21. COST EFFECTIVE (cheaper than most other alternative energy sources) NUMEROUS USES BESIDES POWER GENERATION LOW ENVIRONMENTAL IMPACT HUGE RESOURCE POTENTIAL (Up to 88,000 TWh/year) CONSTANT POWER 24X7 BENEFITS REDUCES DEPENDENCE ON FOSSIL FUELS
- 22. LIMITATIONS EXPENSIVE LIMITED TO AREAS WITH ANNUAL THERMOCLINE OF 20°C POLITICAL CONCERNS OVER LOCATION DISRUPTION OF ECOSYSTEM
- 23. FUTURE OF OTEC Upcoming project locations: • The Bahamas, US • Hainan Island, China • Hawaii, US • Japan • Virgin Islands, US • Kiribati • Andaman & Nicobar Islands, India • Martinique, France • Reunion island, France
- 24. REFERENCES AND SOURCES ● Ocean Thermal Energy Conversion - Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Ocean_thermal_energy_conversion ● How does OTEC work? (ocean thermal energy conversion) - Explain that Stuff http://www.explainthatstuff.com/how-otec-works.html ● The Energy Debates: Ocean Thermal Energy Conversion http://www.livescience.com/3155-energy-debates-ocean-thermal-energy-conversion.html ● Ocean Thermal Energy Conversion Basics | Department of Energy http://energy.gov/eere/energybasics/articles/ocean-thermal-energy-conversion-basics ● OTEC 101 - How Does It Work? - OTE Corporation http://otecorporation.com/technology/otec-101-how-does-it-work/ ● OTEC: The Time Is Now – Lockheed Martin http://www.lockheedmartin.co.in/us/100years/stories/otec.html ● ocean thermal energy conversion (OTEC) | technology | Britannica.com https://www.britannica.com/technology/ocean-thermal-energy-conversion