지중 열교환기용 시멘트 그라우트에 관한 연구

• 영문명: A study on cement-based grout for ground heat exchangers
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 이동주(Lee, Dong-Ju) 백환조(Baek, Hwan-Jo) 김경만(Kim, Gyoung-Man)
• 간행물 정보: 『산업기술연구』vol.31, 27~36쪽, 전체 10쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2011.09.30

영문 초록

In this paper, the applicability of cement grout has been studied as an alternative to bentonite grout for backfill ground heat exchangers. To provide an optimal mixture design, the thermal conductivity of cement grout and bentonite grout with various mixture ratios were experimentally evaluated and compared. Numerical analyses using Fluent(FVM program) were applied to compare the thermal transfer efficiency of the cement grout with that of the bentonite grout used in the construction. Also the effective ground thermal conductivity was measured by In-situ thermal response test. The results showed that the thermal efficiency of the cement grout was better than the bentonite grout. Consequently, the cement grout could be an alternative with more thermal efficiency to bentonite grout for ground heat exchangers.

목차

1. 서론

2. 그라우트 특성 시험

3. 시험 결과

4. 결론

키워드

지중 열교환기 열전도도 현장 열응답 시험 Ground Heat Exchanger Thermal Conductivity In-situ Thermal response test