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Andrzej Grzebielec, Artur Rusowicz, Adam Rucinski
Analysis of the performance of the rotary heat exchanger in the real ventilation systems
| Conference Information: |
9th International Conference on Environmental
Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA |
| Source: |
ICEE-2011 - International Conference on Environmental
Engineering |
| Book Series: |
International Conference on Environmental Engineering
(ICEE) Selected papers |
| ISSN: |
ISSN 2029-7092 online |
| ISBN: |
978-609-457-640-9 / 978-609-457-690-4 CD |
| Year: |
2014 |
| Publisher: |
Vilnius Gediminas Technical University Press Technika |
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Abstract
Manufacturers of rotary heat recovery units describe them as a very high efficiency heat recovery ventilation systems. In a real system this
device is not usually operated under optimal conditions. This is due to the daily and annual changes in temperature and relative humidity.
In order to determine the parameters of the rotary heat exchanger mathematical model was constructed and then implemented in a
development environment. The paper presents the modeling results of job recovery unit working in real conditions with regard to changes
in temperature, air velocity and rotor speed. It turns out that on each of the parameters affects the efficiency of the heat recovery process,
which demonstrate that the heat exchanger for the better part of the year will be working with much less efficiency than the nominal.
Keywords: rotary heat exchanger; heat transfer; finite difference method; energy recovery.
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