CAJ | 학술논문

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。
재시험결과적기출상，분석제랭량화능효비수간습구온도적변화특성。용적지신식량준칙（Akaike information criterion，AIC）선취제랭량화능효비최우의합삼유곡면방정，구해제랭량화능효비수간습구온도변화적제도겁치구간，이량자제도겁치구간내간습구온도윤차범위적병집위A급、현행간습구온도윤차위C급，이각급최대（최소）능효비변화솔상등원칙，대윤차진행삼급비선성화분。실례표명수착윤차등급적승고，능효비최대변화솔유5.19%축감지1.04%，분급윤차능구경가준학지판별방간공조기적능효등급,병급국가표준적수정제공삼고。
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.