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2020 | OriginalPaper | Buchkapitel

4. Air Handling Unit

verfasst von : Y. H. Venus Lun, S. L. Dennis Tung

Erschienen in: Heat Pumps for Sustainable Heating and Cooling

Verlag: Springer International Publishing

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Abstract

Air handling unit (AHU) is one of the most important equipments in HVAC (heating, ventilation, and air-conditioning) system particularly in large-scale buildings for providing both heating and cooling for multiple zones. This chapter starts with a discussion on AHU and indoor air quality. AHU operations not only significantly impact supply air temperature and humidity levels, but also the energy consumed for heating, cooling, and ventilation. It is essential to implement measures to reduce energy consumption. Various operating modes and ventilation systems of AHU are also discussing. AHU dehumidification by using direct expansion (DX) coil and rotary desiccant dehumidifier is investigated. Furthermore, hybrid systems on integration of rotary desiccant dehumidification with AHU unit and primary handling unit are examined. To illustrate the design of AHU system, a case study on cold vault is presented.

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Metadaten
Titel
Air Handling Unit
verfasst von
Y. H. Venus Lun
S. L. Dennis Tung
Copyright-Jahr
2020
DOI
https://doi.org/10.1007/978-3-030-31387-6_4