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Adaptable cooling coil performance during part loads in the tropics-A computational evaluation

机译：热带地区部分负荷期间的自适应冷却盘管性能-A计算评估

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摘要

Air conditioning and mechanical ventilation systems may be oversized in commercial buildings in the Tropics. Oversized cooling coils may lead to reduced dehumidifying performance, indoor air quality and thermal comfort and increased energy consumption. In this paper, an adaptable cooling coil design is assessed with a general-purpose coil selection software tool, in which the number of active rows changes as a function of the load. For a 100% oversized coil, it is shown that the adaptable cooling coil is able to provide small but relevant improved humidity control down to 25% of the design load. This was obtained without affecting energy performance in typical variable air volume design and control. For specific applications, where variable air volume systems mainly control space humidity, there are also energy savings. The adaptable cooling coil could be seen as providing additional flexibility in the operation of HVAC systems, particularly in the tropics. (C) 2017 Elsevier B.V. All rights reserved.
机译：热带地区的商业建筑中，空调和机械通风系统的尺寸可能会过大。过大的冷却盘管可能会导致除湿性能下降，室内空气质量和热舒适性降低以及能耗增加。在本文中，使用通用线圈选择软件工具评估了自适应冷却盘管设计，其中有效行数随负载变化。对于尺寸为100％的超大盘管，显示出自适应冷却盘管能够提供小巧但相关的改进的湿度控制，低至设计负载的25％。在典型的可变风量设计和控制中，在不影响能源性能的情况下即可实现这一目标。对于特定应用，其中可变风量系统主要控制空间湿度，还可以节省能源。可以将适应性冷却盘管视为在HVAC系统（特别是热带地区）的运行中提供额外的灵活性。 （C）2017 Elsevier B.V.保留所有权利。

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