Ocean Thermal Energy Conversion (OTEC) - Turning water into watts..!!
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- Опубликовано: 4 июл 2024
- The Ocean Thermal Energy Conversion (OTEC) uses the warm surface sea water and the cold deep-sea water to generate clean and renewable energy. An OTEC plant can be configured to produce large amount of water for drinking, irrigation, and aquaculture. The efficiency of the OTEC is higher when the temperature difference between the surface water and deep-sea water is around 20 to 22 degrees Celsius. So only tropical regions can utilize this system. This means, India is one of the countries which can enjoy this favor.
Chapters:
0:00 Problems with Thermal Power Plants.
0:52 intro
1:00 Ocean thermal energy conversion
1:45 concept behind OTEC
2:58 Open Cycle OTEC
4:00 Closed Cycle OTEC
4:60 Hybrid Cycle OTEC
5:39 Countries that can enjoy OTEC
6:03 Land Based OTEC
6:07 Floating OTEC
Sources:
www.makai.com/ocean-thermal-e...
en.wikipedia.org/wiki/Ocean_t...
www.eia.gov/energyexplained/h...
pib.gov.in/PressReleasePage.a... 
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whaaattt and we get oxygen?? lets doo ittt!!!!! i want to build one in dominican republic one day, but im just currently an ocean engineering student in the united states :)
i've been looking into this for a while and this was the most comprehensive explanation of multiple methods. Thank you for creating and sharing!
Glad you like it 😊
Crystal clear explanation..thank you
Thank you
Super explanation thanks for sharing
Glad you like it :)
The video had a detailed description and logical reasons behind the invention of the conversions which made the concept very understandable. Thank you so much ma'am. 😊
You are welcome 😊
"Thank you mam for your exceptional guidance in teaching the concepts that were crucial for today's exam. Your support has been invaluable, and I truly appreciate your dedication to our learning."
Glad to be helpful
Good One Mam.. Very Clearly Explained
Glad you found this useful.
Super mam
Thank you :)
nice
Thank you 😊
Good explination mam
Thank you, I am happy to hear you feel that way!
subscribed
Thank you 😊
I am from Cuba. I am interested more information about that theme but in Spanish language. Please
Am so sorry. I don't speak Spanish.
l heard that warm surface 25 °C
Wait, in order to operate this plant, you need atleast three pumps, one for pumping hot water, another for pumping cold water, and a third for either maintaining the constant low pressure in the open cycle, or for pumping the ammonia around in the closed cycle ... which means these pumps will act as parasitic losses on the total electricity generated from the temperature difference, as they themselves will eat lots of electricity to operate !!!
I wonder how much net electricity we will be able to extract from this system ... what if the energy in the warm surface water is less than the energy required to run the three pumps ??? In that case, we will be consuming more power than we are generating !!! That will act as a net loss of energy !!!
Give It A THOUGHT !!!
OTEC requires a pump with a large flow rate and a low head, and due to the high seawater flow rates, the power consumption of a seawater pump represents a considerable portion of the electricity consumed. The net power is about 65% of the total electricity generated in OTEC; the seawater pump, the vacuum pump, and the working medium pump are the main sources of equipment power consumption.
I got this information from the below article
www.frontiersin.org/articles/10.3389/fenrg.2023.1115695/full
@@TheLearningCurveBenila So, the whole system is more like Regenerative Braking, where the aim is not to generate more 'new' power, but rather to retrieve 'waste' power ... Am I Right ???
I dont think we can consider Ocean thermal as a 'waste power' . Its naturally available power. But, a part of the generated electricity is used for the operation of the plant.
@@TheLearningCurveBenila By 'Waste Energy', I mean it's more like background low intensity energy which has by definition low energy density ... Thus, extracting it at meaningful volumes means we have to pump absolutely enormous amounts of water !
Even though we can do it 24 * 7 , I don't think running mechanical pumps all the time is really a good idea, considering the brine water conditions they are working in ... Besides, an active system like this which actively needs energy inputs to operate, has Fare more points of breakdown and error than a passive system like , say, wave power or offshore wind power.
@@TheLearningCurveBenila Parasitic Energy Losses are nothing new, they happen all the time in case of coal or natural gas - based power plants ... Or even in ICE engines in cars, but the real deal is that coal, oil and natural gas all have such a high energy density, that even at poor efficiencies like 30% - 40% , we can still derive meaning amounts of power to run entire cities ... Meanwhile, specific heat capacity of water may be high compared to other common substances, but it's not as high as these conventional fossil fuels .....
Hence, combined with the harsh operating conditions of marine environments, it's not surprising that OTEC specifically, and other marine power technologies in general, has seen little progress compared to More Mainline GreenTech like Solar & Wind !!!
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Thank you 😊