کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6696979 | 1428352 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic control of room air temperature for stratum ventilation based on heat removal efficiency: Method and experimental validations
ترجمه فارسی عنوان
کنترل پویا دمای هوای اتاق برای تهویه هوا بر اساس راندمان حذف گرما: روش و اعتبار سنجی های تجربی
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کلمات کلیدی
دمای اتاق اتاق، کنترل پویا، راندمان حذف حرارت، سیستم مدیریت ساختمان، تهویه هوا
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Stratum ventilation can energy-efficiently provide quality indoor air and thermal comfort. The room air temperature in the occupied zone is a dominant parameter for thermal comfort. The non-uniform thermal environment of stratum ventilation challenges the dynamic control of the room air temperature. This study proposes a dynamic control method of the room air temperature for stratum ventilation based on heat removal efficiency. The proposed method requires inputs of only supply air temperature, supply airflow rate and exit air temperature, and can be readily employed by the building management system in practice. Dynamic experiments, with a wide variation range (i.e., from 24.5â¯Â°C to 30â¯Â°C), different variation rates (i.e., from 0â¯Â°C/min to 0.088â¯Â°C/min) and different variation trends (i.e., increase, decrease and steady) of the room air temperature, are conducted to validate the proposed method. The time interval of the dynamic experiments is 1â¯min. Furthermore, the effects of the cooling load and room occupancy are also analyzed to demonstrate the robustness of the proposed method. The differences between the predicted room air temperatures by the proposed method and measurements are no more than 0.33â¯Â°C, and the root mean square errors are no more than 0.18â¯Â°C. Compared with the conventional method, which assumes that the room air temperature equals to the exit air temperature at the air terminals, the proposed method improves the accuracy in the room air temperature prediction by 79.3%-93.3%. The proposed method can be applied to dynamically control the room air temperature to meet the requirement of thermal comfort.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Building and Environment - Volume 140, August 2018, Pages 107-118
Journal: Building and Environment - Volume 140, August 2018, Pages 107-118
نویسندگان
Sheng Zhang, Yong Cheng, Zhaosong Fang, Zhang Lin,