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ISSN 2029-7092 online
ISBN 978-609-457-690-4 CD
ISBN 978-609-457-640-9
Energy for Buildings

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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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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