Evaluation method and enhanced strategy for frosting suppression performance of variable speed air source heat pump based on frosting suppression performance map
IF 6.6 2区 工程技术Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Yao Lin , Jianfei Luo , Qing Luo , Xiaoli Li , Wei Wang , Yuying Sun
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引用次数: 0
Abstract
It is well established that the configuration and operation of variable speed air source heat pumps (VS ASHPs) can significantly influence their frosting performance. However, there is currently no effective method to conveniently and accurately evaluate the frosting suppression performance of these units. This paper addresses this gap by proposing a novel evaluation method based on a frosting suppression map for VS ASHPs. Firstly, an experimental setup with four ASHP units and developed frosting suppression maps is described. Second, a method for evaluating the frosting suppression performance of VS ASHP is developed based on the map. Thirdly, a comprehensive evaluation of the frosting suppression performance of the experimental unit is carried out. It is shown that the β values of the four units under the constitutive configuration were 0.74, 0.12, 0.21, and 0.52, and the frosting suppression performance was evaluated as Good, Poor, Fair, and Average, respectively. It could be enhanced and improved to 0.89 (Excellent), 0.24 (Fair), 0.64 (Good), and 0.63 (Good) after applying the frosting suppression operation method. The proposed novel frosting suppression evaluation method is simple and easy to implement, which could contribute to further guiding manufacturers to improve the frosting suppression performance of VS ASHPs.
众所周知,变速空气源热泵(VS ASHPs)的配置和运行会极大地影响其结霜性能。然而,目前还没有有效的方法来方便、准确地评估这些设备的结霜抑制性能。本文针对这一缺陷,提出了一种基于 VS ASHPs 结霜抑制图的新型评估方法。首先,介绍了四台 ASHP 设备的实验装置和开发的结霜抑制图。其次,基于该地图开发了一种评估 VS ASHP 结霜抑制性能的方法。第三,对实验机组的结霜抑制性能进行了综合评估。结果表明,四台机组在构成配置下的β值分别为0.74、0.12、0.21和0.52,抑霜性能分别被评价为好、差、一般和平均。在应用霜冻抑制操作方法后,其性能可提高并改善至 0.89(优)、0.24(一般)、0.64(良)和 0.63(好)。所提出的新型结霜抑制评价方法简单易行,有助于进一步指导制造商提高 VS ASHPs 的结霜抑制性能。
期刊介绍:
An international journal devoted to investigations of energy use and efficiency in buildings
Energy and Buildings is an international journal publishing articles with explicit links to energy use in buildings. The aim is to present new research results, and new proven practice aimed at reducing the energy needs of a building and improving indoor environment quality.