파이프 재질 및 형태에 따른 에너지 슬래브의 현장 열교환 성능 평가Evaluation on in-situ Heat Exchange Efficiency of Energy Slab According to Pipe Materials and Configurations
- Other Titles
- Evaluation on in-situ Heat Exchange Efficiency of Energy Slab According to Pipe Materials and Configurations
- Authors
- 이석재; 오광근; 한신인; 박상우; 최항석
- Issue Date
- 2017
- Publisher
- 한국지열에너지학회
- Keywords
- Energy slab(에너지 슬래브); Ground heat exchanger(지중열교환기); Thermal response test(열응답 시험); Stainless steel(스테인레스 스틸); Relative heat exchange efficiency(상대 열교환효율)
- Citation
- 한국지열에너지학회논문집, v.13, no.4, pp.1 - 7
- Indexed
- KCI
- Journal Title
- 한국지열에너지학회논문집
- Volume
- 13
- Number
- 4
- Start Page
- 1
- End Page
- 7
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/85371
- DOI
- 10.17664/ksgee.2017.13.4.001
- ISSN
- 1738-6985
- Abstract
- The energy slab is a ground coupled heat exchanger equipped in building slab structures, which represents a layout similar to the horizontal ground heat exchanger (GHEX). The energy slab is installed as one component of the floor slab layers in order to utilize the underground structure as a hybrid energy structure. However, as the energy slab is horizontally arranged, its thermal performance is inevitably less than the conventional vertical GHEXs. Therefore, stainless steel (STS) pipes are alternatively considered as a heat exchanger instead of high density polyethylene (HDPE) pipes in order to enhance thermal performance of GHEXs. Moreover, not only a floor slab but also a wall slab can be utilized as a heat-exchangeable energy slab in order to maximize the use of underground space effectively. In this paper, four field-scale energy slabs were constructed in a test bed, which consist of the STS and HDPE pipe, and a series of thermal response tests (TRTs) was conducted to evaluate relative heat exchange efficiency per unit pipe length according to the pipe material and the configuration of energy slabs. The energy slab equipped with the STS pipe shows higher thermal performance than the energy slab with the HDPE pipe. In addition, thermal performance of the walltype energy slab is almost equivalent to the floor-type energy slab.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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