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The Water Cooler
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Refrigerant
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<blockquote data-quote="-Pjackso" data-source="post: 4032555" data-attributes="member: 8119"><p>+1!!! I'm in total agreement with the idea of using nitrogen. Nitrogen composes 78% of the air we breath.</p><p></p><p>If the nitrogen HVAC had a leak - it's non-toxic to people. It's easily available and not proprietary.</p><p>In fact, there are nitrogen 'generators' that collect nitrogen from the air. The nitrogen HVAC could automatically 'recharge' from the air if it runs low. (No service call for refrigerant)</p><p></p><p>Unfortunately, I think the Pressure-Enthalpy charts for nitrogen has a very limited and narrow 'usage' range - so it's not a good compound for refrigerant.</p><p>Although, I could be wrong....</p><p></p><p></p><p>Post Edit: More reading about why Nitrogen isn't used as a refrigerant:</p><p>[URL unfurl="true"]https://www.quora.com/Why-dont-they-use-liquid-nitrogen-for-air-conditioners-and-refrigerators-instead-of-freon-or-ammonia[/URL]</p></blockquote><p></p>
[QUOTE="-Pjackso, post: 4032555, member: 8119"] +1!!! I'm in total agreement with the idea of using nitrogen. Nitrogen composes 78% of the air we breath. If the nitrogen HVAC had a leak - it's non-toxic to people. It's easily available and not proprietary. In fact, there are nitrogen 'generators' that collect nitrogen from the air. The nitrogen HVAC could automatically 'recharge' from the air if it runs low. (No service call for refrigerant) Unfortunately, I think the Pressure-Enthalpy charts for nitrogen has a very limited and narrow 'usage' range - so it's not a good compound for refrigerant. Although, I could be wrong.... Post Edit: More reading about why Nitrogen isn't used as a refrigerant: [URL unfurl="true"]https://www.quora.com/Why-dont-they-use-liquid-nitrogen-for-air-conditioners-and-refrigerators-instead-of-freon-or-ammonia[/URL] [/QUOTE]
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