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Indoor air quality and energy issues of refrigerant modulating air-conditioning systems in the tropics

机译：热带地区制冷剂调节空调系统的室内空气质量和能源问题

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The concept of refrigerant modulating air-conditioning systems for medium sized office buildings is increasingly becoming popular owing to their simplicity in installation and maintenance as well as the potential to conserve energy. However, it is important to evaluate the issues of ventilation and indoor air quality (IAQ) associated with such systems. In this paper, the results of an integrated IAQ-energy audit of two buildings in Singapore, employing the refrigerant modulating air-conditioning systems are presented and compared with those from conventional central air-conditioning systems. Two different designs of providing the outside air to the occupied zones are considered and it is observed that the design involving a direct connection of the outside air duct to the fan coil units is better than the design that involves supplying the outside air directly into the occupied zones. Key performance parameters such as the ventilation index, air exchange effectiveness characteristics and the energy index of the refrigerant modulating air-conditioning system are comparable to conventional central air-conditioning systems.
机译：由于中型办公楼的制冷剂调节空调系统的安装和维护简便性以及节约能源的潜力，其概念正变得越来越流行。但是，重要的是评估与此类系统相关的通风和室内空气质量（IAQ）问题。本文介绍了采用制冷剂调节空调系统的新加坡两座建筑物的IAQ能源综合审计结果，并将其与常规中央空调系统的结果进行了比较。考虑了将外部空气提供给占用区域的两种不同设计，并且观察到，涉及将外部空气导管直接连接到风扇盘管单元的设计比涉及将外部空气直接供应到所占用区域的设计更好。区域。诸如制冷剂调节空调系统的通风指数，空气交换效率特性和能量指数等关键性能参数与常规中央空调系统相当。

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