Flow rate optimization in run-around heat recovery systems
Mahmoud, Mohammad 1Filipsson, Peter 1Brunninge, Samuel 2Dalenback, Jan-Olof1
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作者信息
1. Chalmers Univ Technol, Dept Architecture & Civil Engn, Div Bldg Serv Engn, S-41296 Gothenburg, Sweden
2. FlaktGrp Sweden AB, S-55302 Jonkoping, Sweden
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Abstract
Heat recovery technologies are used to reduce the energy use and the operating costs for ventilation systems in buildings. Run-around heat recovery systems for ventilation are commonly used in buildings when cross-contamination between the air streams is not acceptable, in buildings with complex ducting and in retrofit projects with space limitations. The design and operation of run-around systems are rather complex, especially in ventilation systems with variable air flow rates since the coupling liquid flow rate must be adjusted with respect to the air flow rate.