Improved Design Method of Open Loop Geothermal System and its Applications

서론 1)개방형 ( KIEAE Journal, Vol. 17, No. 3, Jun. 2017, pp.119-124. KIEAE Journal A B S T R A C T K E Y W O R DPurpose: Groundwater heat pump (GWHP) system has high coefficient of performance than conventional air-source heat pump system and closed-loop type geothermal system. However, there is problem in long-term operation that groundwater raise at the diffusion well and reduced at the supply well. Therefore, it is necessary to accurately predict the groundwater flow, groundwater movement and control the groundwater level in the wells. In this research, in consideration of hydrogeological characteristic, groundwater level and groundwater movement were conducted analysis in order to develop the optimal design method of the two-well system using the pairing pipe. Method: For the optimum design of the two-well system, this research focused on the design method of the pairing pipe in the simulation model. Especially, in order to control the groundwater level in wells, pairing pipe between the supply well and diffusion well was developed and the groundwater level during the system operation was analyzed by the numerical simulation. Result: As the result of simulation, the groundwater level increased to -2.65m even in the condition of low hydraulic conductivity and high pumping flow rate. Consequently, it was found that the developed system can be operated stably. ⓒ 2017 KIEAE Journal 지하수 이용 히트펌프 시스템 수리지질학적 특성 복수정 페어링 파이프

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Hydrological study for groundwater source heat pump using a pairing of two wells

Kim¹,

Park²,

Kim³

et al. 2018

JGSK

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Improved Design Method of Open Loop Geothermal System and its Applications

Cited by 4 publications

References 4 publications

Thermal performance comparison of standing column well and cross-mixing balancing well heat exchangers

Thermal performance comparison of standing column well and cross-mixing balancing well heat exchangers

Hydraulic feasibility study on the open-loop geothermal system using a pairing technology

Hydrological study for groundwater source heat pump using a pairing of two wells

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