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Central heating and cooling in low-energy houses; Vannbaaren varme og kjoeling i lavenergihus

Journal Article:

Abstract

Thermal comfort with minimal energy consumption is achieved with a combination of low temperature floor heating and ventilation with heat recovery, according to Finnish-Danish study. This study examines the heating and cooling needs in low-energy buildings designed based on current regulations in Denmark and Finland. Year-round dynamic simulation was conducted for single-family homes with energy in the range 15 to 35 kWh, and the design heat load in the range 20 to 40 W / m 2 Two different geographical locations were examined, Helsinki and Copenhagen. Heating and cooling needs of the typical residence zones were evaluated. Net energy demand for heating were identified with different heating systems: a low-temperature radiator system, a heating system and an air to air heating system as the reference case. The results show that the water-based systems satisfies requirements for indoor air quality with very limited emission losses. Comparison of primary energy consumption by using a typical heat pump solution gave a clear advantage to the heating system due to the favorable range of flow temperature, which gives an annual energy savings of approximately 20 percent compared with the reference case. The simulations found the cooling needs with peak loads of up to 40  More>>
Publication Date:
Jul 01, 2010
Product Type:
Journal Article
Resource Relation:
Journal Name: Norsk VVS; Journal Volume: 53; Journal Issue: 11; Other Information: refs.,figs.,tabs
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; LOW-ENERGY BUILDINGS; BUILDINGS; HOT WATER; HEATING SYSTEMS; WATER HEATING; WATER HEATERS; FLOORS; COOLING SYSTEMS; ENERGY DEMAND; DENMARK; FINLAND
OSTI ID:
1000245
Country of Origin:
Norway
Language:
Norwegian
Other Identifying Numbers:
Journal ID: ISSN 0029-2265; TRN: NO1005667
Submitting Site:
NW
Size:
page(s) 16-18, 20-21
Announcement Date:
Dec 21, 2010

Journal Article:

Citation Formats

Hansen, Jesper, Nojd, Kari, Nielsen, Lars, and Vuolle, Mika. Central heating and cooling in low-energy houses; Vannbaaren varme og kjoeling i lavenergihus. Norway: N. p., 2010. Web.
Hansen, Jesper, Nojd, Kari, Nielsen, Lars, & Vuolle, Mika. Central heating and cooling in low-energy houses; Vannbaaren varme og kjoeling i lavenergihus. Norway.
Hansen, Jesper, Nojd, Kari, Nielsen, Lars, and Vuolle, Mika. 2010. "Central heating and cooling in low-energy houses; Vannbaaren varme og kjoeling i lavenergihus." Norway.
@misc{etde_1000245,
title = {Central heating and cooling in low-energy houses; Vannbaaren varme og kjoeling i lavenergihus}
author = {Hansen, Jesper, Nojd, Kari, Nielsen, Lars, and Vuolle, Mika}
abstractNote = {Thermal comfort with minimal energy consumption is achieved with a combination of low temperature floor heating and ventilation with heat recovery, according to Finnish-Danish study. This study examines the heating and cooling needs in low-energy buildings designed based on current regulations in Denmark and Finland. Year-round dynamic simulation was conducted for single-family homes with energy in the range 15 to 35 kWh, and the design heat load in the range 20 to 40 W / m 2 Two different geographical locations were examined, Helsinki and Copenhagen. Heating and cooling needs of the typical residence zones were evaluated. Net energy demand for heating were identified with different heating systems: a low-temperature radiator system, a heating system and an air to air heating system as the reference case. The results show that the water-based systems satisfies requirements for indoor air quality with very limited emission losses. Comparison of primary energy consumption by using a typical heat pump solution gave a clear advantage to the heating system due to the favorable range of flow temperature, which gives an annual energy savings of approximately 20 percent compared with the reference case. The simulations found the cooling needs with peak loads of up to 40 W/m2, depending on the sun screening. This cooling demand can be met by using the floor cooling with temperatures of 15 to 17 C , typically available from the free cooling. (AG)}
journal = {Norsk VVS}
issue = {11}
volume = {53}
place = {Norway}
year = {2010}
month = {Jul}
}