Which outcome occurs when a heat exchanger experiences mineral scale buildup on water-cooled surfaces?

💡 Explanation

When mineral scale accumulates, thermal resistance increases because mineral deposits impede conductive heat transfer across the heat exchanger surfaces, diminishing overall efficiency. Therefore, reduced heat transfer is the primary outcome, rather than subcooling, increased pressure, or decreased cavitation, which depend on other factors.

• Which consequence results when ice forms non-uniformly on an evaporator?
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• Which risk increases after poor welding practices on high-strength steel bridge support beams?
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