Publication detail
Exploitation of an air-ground heat exchanger in a low-energy family house
KOLBÁBEK, A. JAROŠ, M.
Czech title
Využití zemního výměníku tepla v nízkoenergetickém rodinném domě
English title
Exploitation of an air-ground heat exchanger in a low-energy family house
Type
conference paper
Language
en
Original abstract
Air-ground heat exchangers (AGHE) are used for preheating of ventilation air in winter, and for precooling in summer. Currently, AGHEs are often proposed as a complement to the warm-air heating system. In such case, winter preheating also serves as an anti-frost protection of a heat recovery unit. The paper deals with annual energy simulation of AGHE and its cooperation with warm-air heating system in a new-built low-energy family house in a North Moravia region. Simplified model created in TRNSYS code was used. Four variants were solved: exploitation of AGHE with and without heat recovery, and the same cases without AGHE as comparative variants. Consequent energy savings are compared with investment costs.
Czech abstract
Předkládaný příspěvek se zabývá energetickou simulací celoročního provozu zemního výměníku tepla (ZVT) a jeho spoluprací s jednotkou teplovzdušného vytápění nízkoenergetického rodinného domu v severomoravském regionu. Pro simulaci byl v programu TRNSYS vytvořen zjednodušený model. Řešeny jsou čtyři varianty: ohřev vzduchu bez využití rekuperace; ohřev vzduchu s využití rekuperace bez předehřevu; předchozí případ byl pak řešen s předehřevem teplovodním ohřívačem a s předehřevem pomocí zemního výměníku tepla. Je posouzen energetický a ekonomický přínos ZVT v otopném i letním období.
English abstract
Air-ground heat exchangers (AGHE) are used for preheating of ventilation air in winter, and for precooling in summer. Currently, AGHEs are often proposed as a complement to the warm-air heating system. In such case, winter preheating also serves as an anti-frost protection of a heat recovery unit. The paper deals with annual energy simulation of AGHE and its cooperation with warm-air heating system in a new-built low-energy family house in a North Moravia region. Simplified model created in TRNSYS code was used. Four variants were solved: exploitation of AGHE with and without heat recovery, and the same cases without AGHE as comparative variants. Consequent energy savings are compared with investment costs.
Keywords in Czech
zemní výměník tepla, teplovzdušné vytápění, zpětné získávání tepla, ekonomické úspory
Keywords in English
air-ground heat exchanger, warm-air heating, heat recovery, energy savings
RIV year
2010
Released
30.06.2010
Location
Praha
ISBN
978-80-247-3634-1
Book
Central Europe towards Sustainable Building. Extended proceedings CESB10 Prague conference
Pages from–to
279–282
Pages count
786
BIBTEX
@inproceedings{BUT34937,
author="Antonín {Kolbábek} and Michal {Jaroš},
title="Exploitation of an air-ground heat exchanger in a low-energy family house",
booktitle="Central Europe towards Sustainable Building. Extended proceedings CESB10 Prague conference",
year="2010",
month="June",
pages="279--282",
address="Praha",
isbn="978-80-247-3634-1"
}