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A naïve question but genuine. Reducing atmospheric pressure reduces boiling point, so would a pressure pump mixed in with heating be beneficial? Relatedly, How
by _a_a_a_ 3y ago
A naïve question but genuine. Reducing atmospheric pressure reduces boiling point, so would a pressure pump mixed in with heating be beneficial?
Relatedly, Howard energy efficiency be affected if you didn't heat the water to be desalinated, but just evaporated it using low pressure? Would it be less, more, or equally efficient than using heat alone?
- Gibbon1 3y agoI think the energy needed to vaporize water goes up slightly as you reduce the pressure. To condense the vapor you need to remove energy and that represents a loss in a single stage system. You can use multiple stages each at a lower and lower pressure to increase the efficiency. Using the heat of condensation to vaporize the water in the next stage.