Use of ammonia as the OTEC working fluid

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SUMMARY

The discussion centers on the use of anhydrous ammonia as a working fluid in Ocean Thermal Energy Conversion (OTEC) systems. Specifically, it examines the conditions of ammonia being compressed to 20 Bar, heated from -33°C to 22°C, and its flow rate of 2 tonnes per second. The conversation also touches on the potential power extraction from a turbine operating at an outlet pressure of 1 Bar. Participants express skepticism about the feasibility of achieving -33°C in an OTEC system and suggest the scenario may be a homework problem.

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  • Understanding of OTEC systems and their operational principles
  • Knowledge of thermodynamic properties of ammonia
  • Familiarity with pressure and temperature relationships in fluid dynamics
  • Basic concepts of turbine power generation
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  • Research the thermodynamic cycle of ammonia in OTEC applications
  • Learn about the properties and handling of anhydrous ammonia
  • Explore the design and efficiency of turbines in low-pressure environments
  • Investigate methods for achieving low temperatures in thermal systems
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Engineers and researchers in renewable energy, specifically those focused on OTEC technology and ammonia as a working fluid, as well as students studying thermodynamics and fluid mechanics.

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TL;DR
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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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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