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首页> 外文期刊>Desalination and water treatment >Reduction of energy consumption in seawater reverse osmosis desalination pilot plant by using energy recovery devices
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Reduction of energy consumption in seawater reverse osmosis desalination pilot plant by using energy recovery devices

机译：通过使用能量回收装置减少海水反渗透淡化试验工厂的能耗

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Of paramount importance, seawater desalination plants using reverse osmosis (RO) is reducing the use of energy, which is mostly required for high pressure pumps. Accordingly, energy recovery devices (ERDs) are widely used for reusing hydraulic energy in RO concentrate stream. Nevertheless, few works have been done to investigate the operation characteristics of various EDR systems in actual desalination plants. In this context, we focused on the comparison of ERDs in a pilot plant with the capacity of 1,000 m~3/day. One centrifugal ERD (turbocharger) and two different types of isobaric ERDs (pressure exchanger [PX] and pressure exchanger for energy recovery [PEER]) were installed and tested under various conditions. Operation data in the pilot plant were analyzed to estimate specific energy consumption and energy transfer efficiency. The specific energy consumption analysis results showed that the isobaric ERDs have higher efficiency than the centrifugal ERD as also expected in theoretical estimation. The energy transfer efficiencies for PX and PEER were determined to be similar in short-term tests.
机译：最重要的是，使用反渗透（RO）的海水淡化厂正在减少能源的使用，这是高压泵最需要的。因此，能量回收装置（ERD）被广泛用于RO精矿流中的水力能的再利用。然而，在实际的海水淡化厂中，很少有工作来研究各种EDR系统的运行特性。在这种情况下，我们重点比较了日处理能力为1,000 m〜3 / day的中试工厂的ERD。在各种条件下安装并测试了一个离心式ERD（涡轮增压器）和两种不同类型的等压ERD（压力交换器[PX]和用于能量回收的压力交换器[PEER]）。分析了中试工厂的运行数据，以估算特定的能耗和能量传输效率。比能耗分析结果表明，等压ERD比离心ERD具有更高的效率，这也是理论估计所期望的。在短期测试中，PX和PEER的能量转移效率被确定为相似。

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