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首页> 外文会议>The 6th Asian conference on refrigeration and air conditioning-towards the sustainable development >PERFORMANCE EVALUATION OF GEOTHERMAL HEAT PUMP WITH DIRECT EXANSION TYPE VERTICAL GROUND HEAT EXCHANGER
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PERFORMANCE EVALUATION OF GEOTHERMAL HEAT PUMP WITH DIRECT EXANSION TYPE VERTICAL GROUND HEAT EXCHANGER

机译：直接膨胀式立式地面换热器对地热泵性能的评估

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Vertical closed-loop ground source heat pump systems (GSHP) have been installed widely in Korea since it can extract moderate temperature level of geothermal heat in a small area.As a ground heat exchanger,a vertical closed-loop type with brine circulation is mostly preferred since it is simple and less harmful to ground environment.However,it requires a secondary heat exchange loop between the refrigerant in a heat pump and the brine.By adding a geothermal heat exchanger in the secondary heat exchange loop,circulation pumps should be attached and the temperature difference between refrigerant and ground is increased,which are important parts of performance degradation.In this paper,performances of direct expansion (DX) geothermal heat pump were evaluated mathematically as an alternative of classical indirect geothermal heat pump.
机译：立式闭环地源热泵系统（GSHP）可以在较小的区域内提取适中的地热温度，因此在韩国已广泛安装。首选，因为它简单且对地面环境的危害较小。但是，它需要在热泵中的制冷剂和盐水之间进行二次换热。通过在二次换热回路中添加地热热交换器，应安装循环泵本文对直接膨胀式地热热泵的性能进行了数学评估，以替代传统的间接式地热热泵，对制冷剂与地面之间的温差进行了评估。

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