化工学报 ›› 2014, Vol. 65 ›› Issue (9): 3676-3679.DOI: 10.3969/j.issn.0438-1157.2014.09.050

• 能源和环境工程 • 上一篇    下一篇

基于性能曲面特性的干湿球温度允差等级划分

张忠斌1,2, 杜垲1, 黄虎2, 张若楠2   

  1. 1 东南大学能源与环境学院, 江苏 南京 210096;
    2 南京师范大学能源与机械工程学院, 江苏 南京 210042
  • 收稿日期:2014-01-21 修回日期:2014-04-30 出版日期:2014-09-05 发布日期:2014-09-05
  • 通讯作者: 杜垲
  • 基金资助:

    国家自然科学基金项目(51176029);江苏省高校自然科学基金项目(12KJB470010);江苏省产学研前瞻性项目(BY2013001-05);南京师范大学科技成果转化基金项目(2013-07)。

Grading of dry-bulb and wet-bulb temperature allowances based on characteristics of performance curves

ZHANG Zhongbin1,2, DU Kai1, HUANG Hu2, ZHANG Ruonan2   

  1. 1 School of Energy and Environment, Southeast University, Nanjing 210096, Jiangsu, China;
    2 School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, Jiangsu, China
  • Received:2014-01-21 Revised:2014-04-30 Online:2014-09-05 Published:2014-09-05
  • Supported by:

    supported by the National Natural Science Foundation of China (51176029), the Natural Science Foundation of the Higher Education Institutions of Jiangsu Province, China (12KJB470010), the Prospective Study of Industry-University-Research Cooperation in Jiangsu Province, China (BY2013001-05) and the Foundation of Technology Transfer, Nanjing Normal University (2013-07).

摘要: 在试验结果的基础上,分析制冷量和能效比随干湿球温度的变化特性。用赤池信息量准则(Akaike information criterion,AIC)选取制冷量和能效比最优拟合三维曲面方程,求解制冷量和能效比随干湿球温度变化的梯度极值区间,以两者梯度极值区间内干湿球温度允差范围的并集为A级、现行干湿球温度允差为C级,以各级最大(最小)能效比变化率相等原则,对允差进行三级非线性划分。实例表明随着允差等级的升高,能效比最大变化率由5.19%缩减至1.04%,分级允差能够更加准确地判别房间空调器的能效等级,并给国家标准的修订提供参考。

关键词: 允差, 干湿球温度, 房间空调器, 性能试验, 赤池信息量准则

Abstract: Based on performance test results, characteristics of cooling capacity (CC) and energy efficiency ratio (EER) change with indoor dry-bulb and wet-bulb temperatures (D&WBT) are examined. By applying corrected Akaike information criterion, best fit 3D surface equations of CC and EER are determined to obtain their variation gradients and corresponding intervals of gradient extrema. Based on the classification principle of keeping the maximum (minimum) EER variation rates between neighboring classes equal, D&WBT allowances in national standard are classified into three classes by using nonlinear classification, with the corresponding range of D&WBT in the union set of the intervals of gradient extrema of CC and EER as Class A, and the current D&WBT allowances set in the national standard as Class C. As an illustration of this new method, indoor D&WBT allowances under the cooling working condition are classified into Class A, B and C. The results show that the EER variation rate in Class A is as low as 1.04%, while that in Class C is 5.19%. It can be concluded that classified D&WBT allowances are more effective in evaluating the performance of a unit and valuable as a reference for revision of the national standard.

Key words: allowances, dry-bulb and wet-bulb temperature, room air conditioner, performance experiment, Akaike information criterion

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