Sensible heat recovery heat exchanger
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What should such a heat exchanger look like for cooling lava (2000 degrees Celsius) to below 100 degrees Celsius, making use of the latent heat of the lava?
May I ask? Is lava at 100 degrees still liquid? It’s still 1000 degrees:$
2000 degrees Celsius is when lava is in a liquid state, while 100 degrees Celsius is when it is in a solid state. I’m sorry for not making that clear enough.