New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
권호 표지

Comparative Study on Performance of Wet-type and Dry-type Floor Heating Systems Using Geothermal Heat Pump

지열히트펌프를 이용한 습식.건식 바닥난방 성능평가 연구

  • 이병두 (현대건설(주) 기술/품질 개발원) ;
  • 이세진 (현대건설(주) 기술/품질 개발원) ;
  • 이대우 (현대건설(주) 기술/품질 개발원) ;
  • 오성해 ((주)ADD웰빙테크) ;
  • 남우동 ((주)ADD웰빙테크)
  • Published : 2009.12.25
Download PDF
⟨ Previous Next ⟩

Abstract

The present study was conducted for a comparative evaluation of wet and dry floor heating systems using geothermal heat pump. We circulated hot water from geothermal heat pump which is $10{\sim}15^{\circ}C$ lower than that from boiler. In order to access indoor temperature ($25^{\circ}C$) it took 74 minutes for dry type and 247 minutes for wet type. Average floor temperature was $23.9^{\circ}C$ for wet type and $32.7^{\circ}C$ for dry type. Energy saving rate gradually increased by 66% after 138 minutes. As a result, in case of floor heating system using low temperature circulation water, dry type was more practicable for stable floor heating than wet type in terms of floor temperature and access time to indoor set temperature.

Keywords