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Climate Chamber Tests for Measuring Performance Characteristics of a Personal Cooling System 测量个人冷却系统性能特征的气候室试验
个人空调系统(PCS)可以提高温暖环境中的个人舒适度。个人电脑会处理建筑用户之间的差异,全球环境中的偏差不会影响个人的舒适度。这样一来,全球气候系统为提供一个精确控制和稳定的当地环境所承受的压力就减少了。通过这种方式,该系统可以实现个性化的舒适性,同时减少建筑的能耗。整个建筑(包括PCS)的节能潜力在很大程度上取决于PCS的性能。理想的PCS使用的能源比全球气候系统所能节省的能源要少。个人电脑性能的决定性特征是补偿一定程度的不适所需的功率,以及可以补偿的最大程度的不适。 在这项研究中,开发了一种PCS,它使用移动的空气作为局部冷却人的手段。在气候室中对16名受试者(8名男性和8名女性)进行了测试,以确定其表现特征。试验是在稳定、略暖的条件下进行的(28°C,82°F)。在这些测试中,PC通过平板电脑上的用户界面间接控制。尽管可以检测到舒适度的明显提高,但所需的功率差别很大。平均而言,受试者需要22.7 W,才能在ASHRAE 7分量表上将整体热感觉降低0.5分。复杂的用户界面和仅选择四种可能的设置导致了巨大的传播。 引用:ASHRAE论文:2015年ASHRAE年会,佐治亚州亚特兰大
Personal conditioning systems (PCS) can increase the individual comfort level in a warm environment. PCS takes care of differences between building users and deviations in the global environment do not influence the comfort of the individual. With that, the pressure on the global climate system to deliver a precisely controlled and stable local environment is reduced. This way, the system can achieve individual comfort and reduce the energy use of the building at the same time. The energy saving potential of the building as a whole, including the PCS, is highly dependent on the performance of the PCS. An ideal PCS uses less energy than what can be saved on the global climate systems. The defining characteristics of performance of the PCS are the power that is needed to compensate for a certain level of discomfort and the maximum level of discomfort that can be compensated for. In this study, a PCS is developed that uses moving air as a mean of locally cooling a person. It was tested on 16 subjects (8 male and 8 female) in the climate chamber to find the performance characteristics. The tests were conducted at stable, slightly warm conditions (28°C, 82°F). During these tests, the PCS is indirectly controlled via a user interface on a tablet computer. Even though a clear increase in comfort level could be detected, the power needed for this varied greatly. On average, the subjects needed 22.7 W to lower their overall thermal sensation 0.5 point on the ASHRAE 7-point scale. The complex user interface and the choice of only four possible settings caused the large spread.
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