RADIATIVE TRANSFER IN VACUUM THERMAL INSULATION OF SPACE VEHICLES

被引:5
|
作者
Gritsevich, I. V. [1 ]
Dombrovsky, L. A. [2 ]
Nenarokomov, A. V. [1 ]
机构
[1] Moscow Inst Aviat Technol, Moscow, Russia
[2] Joint Inst High Temp, Moscow, Russia
来源
COMPUTATIONAL THERMAL SCIENCES | 2014年 / 6卷 / 02期
基金
俄罗斯基础研究基金会;
关键词
radiation; thermal insulation; fibrous spacer; oxide film; computational model; space vehicle;
D O I
10.1615/ComputThermalScien.2014010107
中图分类号
O414.1 [热力学];
学科分类号
摘要
An improved radiative transfer model for vacuum thermal insulations of space vehicles is developed. The effects of both the fibrous spacer between the metal foils and thin oxide layer on the foil surface are taken into account in the calculations of the integral radiative flux through the insulation. Parametric calculations at realistic values of the problem parameters indicate that absorption and scattering of thermal radiation by fibers do not lead to a significant decrease in the radiative flux. At the same time, even very thin oxide films on the surfaces of aluminum foils should be taken into account in engineering calculations. Theoretical estimates show that not even a very dense spacer made of metalized glass fibers with aluminum coating about 50 nm thick may lead to almost a twofold decrease in the integral radiative flux.
引用
收藏
页码:103 / 111
页数:9
相关论文
共 50 条
  • [31] Radiative properties and heat transfer characteristics of fiber-loaded silica aerogel composites for thermal insulation
    Zhao, Jun-Jie
    Duan, Yuan-Yuan
    Wang, Xiao-Dong
    Wang, Bu-Xuan
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2012, 55 (19-20) : 5196 - 5204
  • [32] Optimization by Means of an Analytical Heat Transfer Model of a Thermal Insulation for CSP Applications Based on Radiative Shields
    Gaetano, A.
    Roncolato, J.
    Montorfano, D.
    Barbato, M. C.
    Ambrosetti, G.
    Pedretti, A.
    SOLARPACES 2015: INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, 2016, 1734
  • [33] Identification of the Emissivity and Thermal Resistance of Screen-Vacuum Thermal Insulation in a Mathematical Model of Heat Transfer with Lumped Parameters
    Vikulov, A. G.
    Nenarokomov, A., V
    HIGH TEMPERATURE, 2020, 58 (01) : 112 - 120
  • [34] Identification of the Emissivity and Thermal Resistance of Screen-Vacuum Thermal Insulation in a Mathematical Model of Heat Transfer with Lumped Parameters
    A. G. Vikulov
    A. V. Nenarokomov
    High Temperature, 2020, 58 : 112 - 120
  • [35] THERMAL CONTROL IN SPACE VEHICLES
    THOSTESE.TO
    WOLF, FN
    NUCLEONICS, 1961, 19 (04): : 94 - &
  • [36] Study of the use of vacuum insulation as integrated thermal insulation in ceramic masonry blocks
    Zach, Jiri
    Novak, Vitezslav
    ECOLOGY AND NEW BUILDING MATERIALS AND PRODUCTS 2016, 2016, 151 : 206 - 213
  • [37] Study on the heat transfer of complex-vacuum-multilayer-insulation tank after sudden loss of insulation vacuum
    Zhu, M.
    Wang, R. S.
    HEAT AND MASS TRANSFER, 2012, 48 (11) : 1881 - 1887
  • [38] A novel approach to thermal insulation modelling in soft and medium vacuum insulation systems
    Volschenk, Gideon
    O'Shea, Michael
    Shaughnessy, Bryan
    CRYOGENICS, 2024, 144
  • [39] Research on the design and thermal performance of vacuum insulation panel composite insulation materials
    Yue, Jianwei
    Liu, Jiahui
    Song, Xiao
    Yan, Chao
    CASE STUDIES IN THERMAL ENGINEERING, 2024, 64
  • [40] Study on the heat transfer of complex-vacuum-multilayer-insulation tank after sudden loss of insulation vacuum
    M. Zhu
    R. S. Wang
    Heat and Mass Transfer, 2012, 48 : 1881 - 1887