prw

The models of groundwater flow and heat transfer for non-backfill PRW, gravel-backfill PRW and SCW were established, respectively. The methods of numerical solution were provided.

分别建立了无回填抽灌同井、砾石回填抽灌同井和单井循环系统的地下水流动和换热数学模型，并给出了数值求解方法。

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For the full-year-operation PRW, seasonal thermal energy storage plays an important role in the heat source of the heat pump.

对于冬夏均运行的抽灌同井，季节性蓄能是热泵热源的重要组成部分。

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The characteristic analyses results showed that the phenomena of thermal transfixion would happen when PRW kept running. Even though the existence of thermal transfixion the PRW could burden big load because of the large thermal effective radius.

源汇井特性分析表明，抽灌同井运行时会发生热贯通现象，但由于热影响范围较大，能承担较大的负荷。

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Compares the pumping and recharging well ( PRW) with the standing column well ( SCW).

柱温为25℃。比较了抽灌同井与单井循环系统的异同点。

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When the accumulated load kept unbalance, for perennial-operation PRW the pumping temperature could increase or reduce much annually, which even made PRW not work.

当累积负荷不平衡时，长期运行抽灌同井的抽水温度会出现明显地年度升高或降低，严重时使源汇井失效。

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For PRW, the seasonal thermal energy storage ( STES) alleviated the dependency on aquifer for heat source or sink, and made aquifer as a carrier for heat storage.

抽灌同井运行时的季节性储能很大程度地减轻了对含水层作为热源（汇）的依赖，而让其作为一种蓄热的载体。

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Optimal design of power control system of PRW

压水型核反应堆功率控制系统的优化设计

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Compared with the non-backfill PRW, the gravel-backfill PRW could reduce the pressure of pumping and recharging and had more serious thermal transfixion, too.

砾石回填抽灌同井较无回填抽灌同井能够减小抽水和回灌的压力，热贯通也更严重。

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