冷却顶板与置换通风复合空调系统的热舒适性分析

来源期刊:中南大学学报(自然科学版)2012年第6期

论文作者:李楠 廖建科 郑文茜 刘红

文章页码:2434 - 2440

关键词:冷却顶板与置换通风;热舒适;送风温度;垂直温差;吹风感;平均辐射温度

Key words:cooling ceiling and ventilation displacement system; thermal comfort; supply air temperature; vertical temperature difference; mean radiant temperature

摘    要:为研究冷却顶板与置换通风复合系统(CC/DV)的舒适性,通过对送风温度、垂直温差、吹风感以及平均辐射温度等几个影响人体舒适性的参数进行分析。研究结果表明:冷却顶板与置换通风复合系统具有较小的垂直温差,能有效降低吹风感风险,并具有均匀的辐射温度,这有助于提高人体舒适性;与传统的空调系统相比,冷却顶板与置换通风系统是一种兼具节能和舒适性的新型空调方式,能有效结合冷却顶板较好的热舒适性和置换通风良好的空气质量的优点。

Abstract: To study thermal comfort of the combined cooling ceiling and displacement ventilation (CC/DV) system, an analysis on the parameters of supply air temperature, vertical temperature differences, draft and mean radiant temperature, which influence human feelings was conducted. The results show that the combined system has low supply air temperature and vertical temperature differences; it can avoid draft effectively, and has a uniform radiant temperature which can improve human comfort. Compared with conventional air conditioning systems, it is a new air conditioning style concerning energy efficient as well as better thermal comfort, and effectively combines advantage of cooling ceiling related to better thermal comfort and advantage of displacement ventilation related to better air quality. Along with the state advocates energy saving and emission reduction, the combined system will have a broad application prospect.

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