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首页> 外文期刊>Journal of Heat Transfer >Mineral Fouling Control by Underwater Plasma Discharge in a Heat Exchanger
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Mineral Fouling Control by Underwater Plasma Discharge in a Heat Exchanger

机译:换热器中水下等离子体排放对矿物结垢的控制

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摘要

The excessive mineral contents in water circulation systems could cause severe fouling in heat transfer equipment. The present study investigated the effect of underwater pulsed spark discharges on the mitigation of mineral fouling in a concentric counterflow heat exchanger. Artificial hard water with calcium carbonate hardness of 250 mg/L was used with velocity ranging from 0.1 m/s to 0.5 m/s and zero blowdown. Fouling resistances decreased by 50-72% for the plasma treated cases compared with the values for no-treatment cases, indicating that the pulsed spark discharge could significantly mitigate the mineral fouling on the heat exchanger surface.
机译:水循环系统中过多的矿物质含量可能会导致传热设备严重结垢。本研究研究了水下脉冲火花放电对减轻同心逆流热交换器中矿物结垢的影响。使用碳酸钙硬度为250 mg / L的人造硬水,流速范围为0.1 m / s至0.5 m / s,零排放。与未处理的情况相比,经等离子体处理的情况下的耐污垢性降低了50-72%,这表明脉冲火花放电可以显着减轻热交换器表面的矿物污染。

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