Use of ammonia as the OTEC working fluid

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The discussion centers on the feasibility of using anhydrous ammonia as a working fluid in an Ocean Thermal Energy Conversion (OTEC) system. Participants question whether the described process, involving ammonia heated from -33°C to 22°C and evaporated at 22°C, constitutes an open cycle system that releases ammonia into the atmosphere after turbine use. There is skepticism about achieving the low temperature of -33°C within an OTEC setup. The conversation suggests that the scenario may be part of a homework problem rather than a practical application. Overall, the feasibility and environmental implications of using ammonia in this context are key concerns.
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Anhydrous Ammonia liquid compressed to 20 Bar, heated from -33 C to 22 C, flow rate 2 tonnes per second, evaporated in boiler at 22C what could power extracted from turbine be? (outlet 1 Bar pressure)
Anhydrous Ammonia liquid compressed to 20 Bar, heated from -33 C to 22 C, flow rate 2 tonnes per second, evaporated in boiler at 22C what could power extracted from turbine be? (outlet 1 Bar pressure)
 
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Is this homework?

Biodelta said:
(outlet 1 Bar pressure)
That sounds like an open cycle system, where ammonia is released to the atmosphere after going through the turbine. That would surprise me. Is that correct?
 
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Likes russ_watters and berkeman
I'd like to know how to get -33 C anything in an OTEC system.

And another vote for what sounds like a partially communicated homework problem.
 

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