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Impact of Ventilation Heat Recovery on Primary Energy Use of Apartment Buildings Built to Conventional and Passive House Standard

Leif Gustavsson
Linnaeus University, Växjö, Sweden \ Mid Sweden University, Östersund, Sweden

Ambrose Dodoo
Mid Sweden University, Östersund, Sweden

Roger Sathre
Mid Sweden University, Östersund, Sweden

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp110571962

Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:29, s. 1962-1969

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Publicerad: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

In this study we analyze the primary energy implications of ventilation heat recovery (VHR) in residential buildings; considering the entire energy chains. We calculate the operation primary energy use of a case-study apartment building built to conventional and passive house standard; both with and without VHR; and heated with electric resistance heating; bedrock heat pump or district heating. VHR increases the electrical energy used for ventilation and reduces the heat energy used for space heating. The primary energy savings of VHR are greater for the passive building than for the conventional building. Significantly more primary energy is saved when VHR is used in resistance heated buildings than in district heated buildings. For district heated buildings the primary energy savings are small. VHR systems can give substantial final energy reduction; but the primary energy benefit depends strongly on the type of heat supply system; and also on the amount of electricity used for VHR and the airtightness of buildings. This study shows the importance of considering the interactions between heat supply systems; VHR systems; building thermal properties and its airtightness to reduce primary energy use in buildings.

Nyckelord

Mechanical ventilation; Heat recovery; Heat supply systems; Electric resistance heating; Heat pumps; District heating; CHP plant; Primary energy

Referenser

[1] H.B. Awbi; Chapter 7-Ventilation; Renewable and Sustainable Energy Reviews; 2(1-2); 1998; pp. 157-188. doi: 10.1016/S1364-0321(98)00015-X.

[2] M. Orme; Estimates of the energy impact of ventilation and associated financial expenditures; Energy and Buildings; 33 (3); 2001; pp. 199-205. doi: 10.1016/S0378-7788(00)00082-7.

[3] H. Tommerup; and S. Svendsen; Energy savings in Danish residential building stock; Energy and Buildings; 38 (6); 2006; pp. 618-626. doi: 10.1016/j.enbuild.2005.08.017.

[4] Swedish Government Bill 2005/06:145. A national programme for energy efficiency and energy smart construction. Web accessed at http://www.regeringen.se on April 20; 2009.

[5] Å. Wahlström; Å. Blomsterberg; and D. Olsson; Värmeåtervinningssystem för befintliga flerbostadshus; Förstudie inför teknikupphandling; 2009.

[6] D. Hekmat; H. E. Feustel; and M. P. Modera. Impacts of ventilation strategies on energy consumption and indoor air quality in single-family residences; Energy and Buildings; 9 (3); 1986; pp. 239-251. doi: 10.1016/0378-7788(86)90024-1.

[7] R. Lowe; and D. Johnston; Mechanical ventilation with heat recovery in Local Authority; low-rise housing: Final report on the Derwentside Field Trial. Leeds: Leeds Metropolitan University; 1997.

[8] TIP-Vent; Towards improved performances of mechanical ventilation systems; 2001. http://www.inive.org/Documents/Tip-Vent_Source_Book.pdf on March 1; 2010.

[9] S. Persson; Wälludden trähus i fem våningar: Erfarenheter och lärdomar; Report TVBK-3032; Department of Structural Engineering; Lund Institute of Technology; Sweden; 1998.

[10] Boverkets; Byggregler: Boverkets Författningssamling. Karlskrona: The National Board of Housing; Building and planning; 2009.

[11] L. Gustavsson; A. Dodoo; N.L. Truong; and I. Danielski; Primary energy implications of end-use energy efficiency measures in district heated buildings; Energy and Buildings; 43 (1); 2011; pp. 38-48. doi: 10.1016/j.enbuild.2010.07.029.

[12] EQUA (Simulation AB); ENORM; Version 1000; Stockholm; Sweden; 2004.

[13] Å. Karlsson; ENSYST; Version 1.2; Lund University; Sweden; 2003.

[14] L. Gustavsson; and Å. Karlsson; CO2 mitigation: on methods and parameters for comparison of fossil-fuel and biofuel systems; Mitigation and Adaptation Strategies for Global Change; 11(5-6); 2006; pp. 935-959. doi: 10.1007/s11027-006-9028-7.

[15] J. Kragh; J. Rose; T.R. Nielsen; and S .Svendsen; New counter flow heat exchanger designed for ventilation systems in cold climates; Energy and Buildings; 39 (11); 2007; pp. 1151-1158. doi: 10.1016/j.enbuild.2006.12.008.

[16] A. Dodoo; L. Gustavsson; and R. Sathre; Life cycle primary energy implication of retrofitting a Swedish apartment building to passive house standard; Resources; Conservation and Recycling; 54 (12); 2010; pp. 1152-1160. doi: 10.1016/j.resconrec.2010.03.010.

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