Paper details

Title:

Coupled Ventilation and Flue Gas Heat Exchanger System for Use in Low Energy Dwellings: an Investigation Using Dynamic Energy Simulations

Author(s):

Cablé, A., Georges, L., Peigné, P., Skreiberg, Ø., Chetehouna, K.

Document(s):

Abstract:

In the present study, the relevance of a flue gas heat exchanger (FGHE) located at the exit of a wood-log or a pellet stove to pre-heat ventilation air has been evaluated for energy-efficient single-family houses equipped with balanced mechanical ventilation. Thermal comfort and energy use have been compared with and without the system. In this prospect, dynamic thermal simulations (TRNSYS coupled with TRNFLOW) have been carried out on both a Norwegian detached house typology (passive house standard NS3700) and on a French detached house typology (building regulation RT2012), using 2 different climates corresponding to Oslo (cold climate) and La Rochelle (mixed climate). The results from the simulations show an operative temperature increase in the bedroom furthest away from the stove: up to 6.9°C of the 5th percentile of the operative temperature (Top 5%) for France and up to 4.3°C for Norway, compared to the same houses without the system. Moreover, energy savings of up to 18% were reported over the space-heating season compared to a conventional house without the tested system, depending on the control applied during operation.

Keywords:

modelling, pellet stove, heat exchanger, ventilation, wood-log stove, air heating

Topic:

Biomass Conversion Technologies for Heating, Cooling and Electricity

Subtopic:

Biomass and Bioliquids Combustion for Small and Medium Scale Applications

Event:

25th European Biomass Conference and Exhibition

Session:

2BV.1.29

Pages:

611 - 617

ISBN:

978-88-89407-17-2

Paper DOI:

10.5071/25thEUBCE2017-2BV.1.29

Price:

FREE