• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ASHRAE Transactions >Part-Load Airflow and Power Model of Multispeed Fan-Coil Units with Electronically Commutated Motors
【24h】

Part-Load Airflow and Power Model of Multispeed Fan-Coil Units with Electronically Commutated Motors

机译：具有电子换向电动机的多级扇形线圈单元的部分负载气流和功率模型

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fan airflow and fan motor power data as a function of external static pressure on 85 fan-coil units with electronically commutated motors were analyzed to develop a part-load airflow and power model that could be used to estimate energy use of fan-coil units in building simulation programs. The model was developed by estimating the intersections of the air-distribution system curve with the fan airflow versus external static pressure curves provided by the manufacturers. These intersections were then used to estimate part-load airflow and power fractions referenced to the airflow and power values at the high airflow setting of the fan-coil unit. At least four start-ing external static pressures at the high airflow setting were used to define multiple system curves. The intersections of these system and airflow and power curves at a given airflow setting (medium and low) were then averaged to determine the part-load airflow and power fractions for each fan-coil unit at each setting. The data generated with this method proved to be independent of manufacturer, motor size, and cabinet orien-tation (e.g., horizontal or vertical). A regression analysis was then conducted on all the part-load data and a third-degree polynomial was used to fit the data. The regression was then compared to the ideal fan law curve.
机译：扇形气流和风扇电机功率数据作为85扇形线圈单元的外部静压，具有电子换向电动机的扇形单元，以开发一个部分负载气流和功率模型，可用于估计风扇线圈单元的能量使用构建模拟程序。该模型是通过使用制造商提供的风扇气流与外部静压压力曲线的空气分配系统曲线的交叉来开发。然后使用这些交叉点来估计扇形线圈单元的高气流设置的气流和功率值的部分负载气流和功率分数。高气流设置的至少四个启动外部静电压力用于定义多个系统曲线。然后，将这些系统和气流和电力曲线处的交叉点进行平均，以确定每个设置的每个风扇线圈单元的部分负载气流和功率分数。通过该方法产生的数据证明是独立于制造商，电机尺寸和机柜orien-tation（例如，水平或垂直）。然后在所有部分负荷数据上进行回归分析，使用三度多项式来符合数据。然后将回归与理想的粉丝法曲线进行比较。

著录项

  • 来源
    《ASHRAE Transactions》 |2021年第1期|759-772|共14页
  • 作者

    Dennis L. ONeal; Jessica Cramer; Peng Yin;

  • 作者单位

    School of Engineering and Computer Science at Baylor University Waco TX USA;

    Lockheed Martin Aeronautics Company Fort Worth TX USA;

    University of Louisiana at Lafayette Lafayette LA USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号