کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6686941 | 501868 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Energy conservation improvement and ON-OFF switch times reduction for an existing VFD-fan-based cooling tower
ترجمه فارسی عنوان
کاهش مصرف انرژی برای یک برج خنک کننده مبتنی بر فن در حال حاضر
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کلمات کلیدی
برج خنک کننده، حفاظت انرژی، درایو فرکانس متغیر، کنترل منطقه، رویکرد،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
The increasing economic advantage of replacing traditional two-speed fans with variable-frequency drive (VFD) fans has been gaining popularity in the industry. However, concerns regarding frequent ON/OFF switching and the lack of a well-devised controller have discouraged widespread adoption. In this study, a temperature zone method is proposed to replace the set-point method of fan control. Additionally, the highest output water temperature allowed in the process is set as the upper limit of a zone in order to further conserve energy. Both strategies are comprehensively analyzed for a virtual cooling tower that uses operational data from an existing VFD-fan-based cooling tower system in Taiwan. The results show energy savings of 38% for a 0.75 °C zone without increasing the ON/OFF switching frequency. The proposed strategies were further verified via an on-line field experiment. The proposed methods can be universally and easily applied to any existing cooling tower, and have significant implications for energy conservation if adopted globally.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 154, 15 September 2015, Pages 491-499
Journal: Applied Energy - Volume 154, 15 September 2015, Pages 491-499
نویسندگان
Chun-Cheng Chang, Shyan-Shu Shieh, Shi-Shang Jang, Chan-Wei Wu, Ying Tsou,