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Spacecraft 'Foton-M' in-flight thermal conditions

机译：航天器“ Foton-M”飞行中的热工况

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The problem of thermal conditions aboard the "Foton-M" spacecraft during its orbital flight is under consideration in this paper. The problem is very acute for performing microgravity experiments onboard of the orbital platform, because on one hand, many experiments need a definite temperature range to be performed, and on the other hand all electrical devices aboard radiate heat. To avoid uncontrolled heating of the environment special heat exchangers are used. To transport heat from different places of the capsule to heat exchanger special fans are installed given definite orientation. All the heat exchange facilities should be designed in advance being adjusted to current capsule loading and heat radiation by equipment. Thus special tools are needed predicting the capsule thermal conditions being function of equipment placement. The present paper introduces a new developed prognostic mathematical model able to forecast temperature distribution inside the capsule with account of fan induced air flows, thermal irradiation by scientific equipment and heat losses due to cooling system.
机译：本文正在考虑“ Foton-M”航天器在轨道飞行过程中的热条件问题。对于在轨道平台上进行微重力实验来说，这个问题非常严重，因为一方面许多实验需要执行一定的温度范围，另一方面，所有机载电子设备都散发热量。为了避免对环境的不受控加热，使用了特殊的热交换器。为了将热量从胶囊的不同位置传输到热交换器，必须以明确的方向安装特殊的风扇。所有的热交换设备应事先进行设计，以适应当前的胶囊负载和设备的散热。因此，需要特殊的工具来预测胶囊热状况取决于设备放置的功能。本文介绍了一种新开发的预后数学模型，该模型能够根据风扇引起的气流，科学设备的热辐射以及冷却系统产生的热损失来预测胶囊内部的温度分布。

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