How does hard water affect energy consumption in boilers?
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A.
Decreases energy consumption
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B.
Increases energy consumption
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C.
No effect on energy consumption
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D.
Stabilises energy consumption
Correct Answer:
B. Increases energy consumption
Explanation:
Hard water significantly increases energy consumption in boilers because the high concentrations of minerals, like calcium and magnesium, precipitate when heated to form limescale. This scale acts as a thermal insulator on heat exchangers and heating elements, obstructing the efficient transfer of heat to the water. Consequently, the boiler must operate for longer periods and burn more fuel to reach the desired temperature, which leads to higher utility costs and decreased system efficiency. Over time, this buildup also restricts water flow and forces internal pumps to work harder, further wasting energy and accelerating wear on the appliance.
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