Energy Saving Potential of Ventilation Systems with Exhaust Air Heat Recovery

IOP Conference Series: Materials Science and Engineering. Vol.660: 4th International Conference on Innovative Materials, Structures and Technologies (IMST 2019) 2019
Jurģis Zemītis, Anatolijs Borodiņecs

The paper presents the results of data gathering regarding the heat recovery efficiencies of different heat recovery types at various air flows supplied by some of the most common manufacturers. The study showed that the average heat recovery efficiency of modern, commonly used rotary heat exchangers is around 83% while for counter-flow exchangers around 86%. Also, in the paper, the simulation results of heat energy consumption and recovered heat potential for the single-family house are presented. The simulations are performed in IDA-ICE software and show that for the specific building it is possible to reduce the heating energy up to 84% if ventilation with heat recovery is used. The results also showed that in case the internal heat loads decrease, then it slightly affects the heat recovery potential. In the case of no internal gains, this value decreases by 4%.

Keywords
ventilation, heat recovery, energy saving
DOI
10.1088/1757-899X/660/1/012019
Hyperlink
https://iopscience.iop.org/article/10.1088/1757-899X/660/1/012019

Zemītis, J., Borodiņecs, A. Energy Saving Potential of Ventilation Systems with Exhaust Air Heat Recovery. In: IOP Conference Series: Materials Science and Engineering. Vol.660: 4th International Conference on Innovative Materials, Structures and Technologies (IMST 2019), Latvia, Riga, 25-27 September, 2019. Bristol: IOP Publishing, 2019, Article number 012019. ISSN 1757-8981. Available from: doi:10.1088/1757-899X/660/1/012019

Publication language
English (en)