Thermal Transfer Analysis and Development of the Simplified Calculation Methods of the Thermal Transmittance of Windows and Doors

热传递分析及门窗热传导率简化计算方法的开发

• 批准号: 06452296
• 负责人: AKASAKA Hiroshi
• 金额: $ 2.37万
• 依托单位: Kagoshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06452296/
• 关键词: Window; Door; Numerical Analysis; Boundary Element Method; Thermal Transmittance; 線熱貫流率; 点熱貫流率; 中空層; 断熱; 3次元伝熱; 熱橋; 有限要素法; 差分法

A calculation method of thermal resistance of air cavities included in the frames and sashes is summarized. The method precisely calculate the radiative heat transfer and synthesize the various experimental equations to evaluate convective heat transfer across the cavity. Two dimensional boundary element method is mainly applied to calculate steady state thermal transmittance of the door components such as frames, edges, and glass frames. Three heat transfer at the corners of the frames, edges, and overlapping of the reinforcement materials in the doors are computed by a three dimensional finite element method. These calculations are synthesized to obtaion the overall of thermal transmittance of doors. The comparison of thermal transmittances by the calculation and those by the test shows the maximum diference between them is less than 20% of the calculated values. we'll plan to continue this research until we develop the calculation method of the thermal transmittance for windows.

总结了框窗气孔热阻的计算方法。该方法精确计算辐射传热并综合各种实验方程来评估整个腔体的对流传热。二维边界元法主要用于计算门框、边缘、玻璃框等门部件的稳态热透过率。通过三维有限元方法计算了门框角部、边缘以及门内加固材料重叠处的三个传热。综合这些计算得出门的整体热传导率。计算热透过率与试验热透过率的比较表明，两者的最大差异小于计算值的20%。我们计划继续这项研究，直到开发出窗户热透射率的计算方法。

项目成果

Akasaka, Itami and Nimiya.: "A Calculation Method for Thermal Transmittance of Doors Part 1 The outline of the proposed Calculation Method and Characteristics of Linear Thermal Transmittance of Doors" AIJ Annual Meeting. 25-26 (1995)

Akasaka、Itami 和 Nimiya.：“门的热传导率的计算方法第 1 部分：门的线性热传导率的拟议计算方法和特征的概述”AIJ 年会。

Akasaka and Sawamura.: "Thermal Resistance for Unventilated Vertical Air Spaces-Comparison of Various Calculation Methods and Values-" Annual meeting of SHASE Japan. 317-32 (1995)

Akasaka 和 Sawamura.：“不通风垂直空气空间的热阻 - 各种计算方法和值的比较 -”日本 SHASE 年会。

澤村亮一,赤坂裕,二宮秀輿: "玄関扉の補強材の線熱貫流率" 日本建築学会研究報告九州支部. 第35号・2. 285-288 (1995)

泽村亮一、赤坂丰、二宫秀越：“入口门用增强材料的线材传热系数”日本建筑学会九州分会研究报告第35期2.285-288(1995)。

澤村亮一,赤坂裕: "密閉中空層の熱抵抗の計算法" 日本建築学会研究報告九州支部. 第36号・2(発表予定). (1996)

泽村良一、赤坂裕：《封闭空心层热阻的计算方法》日本建筑学会九州分会研究报告第36期第2期（待提交）。

Itami, Akasaka and Nimiya.: "A Calculation Method for Thermal Transmittance of Doors Part 3 Copmarison between Calculated Values and Measured ones" AIJ Annual Meeting. 29-30 (1995)

Itami、Akasaka 和 Nimiya.：“门热传导率的计算方法第 3 部分计算值与测量值之间的比较”AIJ 年会。