ESTABLISHMENT OF THE THERMAL AND RADIATIVE PROPERTY MODEL FOR OPEN-CELLULAR MATERIALS

开孔材料热辐射性能模型的建立

• 批准号: 09650250
• 负责人: KAMIUTO Kouichi
• 金额: $ 1.66万
• 依托单位: OITA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650250/
• 关键词: OPEN-CELLULAR POROUS MATERIAL; Ni-Cr; Cordierite; EFFECTIVE THERMAL CONDUCTIVITY; CONDUCTION; RADIATION; コ-ジライト; 減衰係数; アルベド; 非対称性パラメータ; ユニットセルモデル

1) The extinction coefficients of Ni-Cr and cordierite open-cellular porouse plates were determined at room temperature using the normal transmittance fitting method, while the asymrnetry factor and the albedos of these materials were determined in a temperature range from 400 to 1000 K using the emittaice fitting method. The obtained results and other available experimental data were compared with theoretical predictions based on our cubic unit cell model for the radiative properties. It is fcmnd that the agreemeut between model predictions and experimerital results is quite satisfactory.2) The mean total effective thermal conductivities of Ni-Cr and cordierite porous plates were measured using a guarded hot plate method. In the experiment, the cold boundary was kept at about. 290 K.while the temperature of the hot boundary was varied from 370 K to 1000 1K.Combined conductive and radiative heat transfer through the porous plates was analyzed theoreticaly. using the cubic unit cell model for the thermal and radiative properties. under the conditions corresponding to the experiment. The obtained theoretical results were favorably compared with the experimental ones. Moreover, it is found that the cubic unit cell model for predicting the conductive effective thermal conductivity of a pen-cellular porous materials reproduces 79% of available experimental data with an error of less tha a *30%.

1）使用正常的透射式拟合方法在室温下确定NI-CR和芯矿石开放式孔板的灭绝系数，而使用Emittaice拟合方法，在400至1000 K的温度范围内确定了脱粒网因子和这些材料的反照率。将获得的结果和其他可用的实验数据与基于我们的辐射特性的立方单位细胞模型的理论预测进行了比较。 FCMND是使用守护的热板法测量了模型预测和实验结果之间的一致性。在实验中，寒冷的边界保持在大约状态。 290 k。当热边界的温度从370 k到1000 1K.com.bast的导电和通过多孔板的辐射传热变化。使用用于热和辐射特性的立方单位细胞模型。在与实验相对应的条件下。与实验结果相比，所获得的理论结果有利。此外，发现用于预测笔细胞多孔材料的导电有效导热率的立方单位细胞模型再现了79％可用的实验数据，而误差较小，为较小的A *30％。

项目成果

K.KAMIUTO: "High-Temperature Radiative Properties of Open-Cellular Porous Materials" Proceedings of 11th International Heat Transfer Conference. Vol.7. 385-390 (1998)

K.KAMIUTO：“开孔多孔材料的高温辐射特性”第 11 届国际传热会议论文集。

上宇都幸一: "オープンセル状多孔体内伝導-ふく射伝熱" 第36回日本伝熱シンポジウム講演論文集. vol.1. (1999)

Koichi Kamiuto：“开孔多孔体中的传导辐射传热”第 36 届日本传热研讨会论文集第 1 卷（1999 年）。

K.KAMIUTO: "Study of Duliner's model for the thermal and radiatiul prepertion of open-cellular porous moterials" JSME International Journal (SeriesB). vol.40,No.4. 577-582 (1997)

K.KAMIUTO：“开孔多孔材料的热和辐射预演的 Duliner 模型的研究”JSME 国际期刊（系列 B）。

K.KAMIUTO: "STUDY OF DUL'NEV'S MODEL FOR THE THERMAL AND RADIATIVE PROPERTIES OF OPEN-CELLULAR POROUS MATERIALS" JSME INTERNATIONAL JORUNAL, SERIES B. VOL.40. 577-582 (1997)

K.KAMIUTO：“开孔多孔材料热性能和辐射性能的 DULNEV 模型研究”JSME 国际期刊，B 系列第 40 卷。

K.KAMIUTO: "HIGH-TEMPERATURE RADIATIVE PROPERTIES OF OPEN-CELLULAR POROUS MATERIALS" PROCEEDINGS OF 11TH INTERNATIONAL HEAT TRANSFER CONFERENCE. VOL.10. 385-390 (1998)

K.KAMIUTO：“开孔多孔材料的高温辐射性能”第 11 届国际传热会议论文集。