期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B2
页码：949-952
出版社：Copernicus Publications
摘要：In this study, we performed an extensive research to identify how and with what kind of facilities the observation satellites implement their thermal control. It helps observation satellite mission designers to have a good sight and overall vision about thermal control components and thermal control approaches that commonly used in this type of satellite. Also in design of thermal control subsystem, and for a rough estimate of weight and power of thermal control subsystems, thermal engineers can use pervious experiences of a similar satellite. Thermal control subsystem is one of the most important subsystems in observation satellites. It is because of the special missions of such a satellite that compel to use precision thermal control on the satellite components and subsystems. The function of the thermal control subsystem (TCS) is to preserve all spacecraft and Payload components and subsystems within their required temperature limits for each mission phase. Temperature limits include a cold temperature which the component must not go below and a hot temperature that it must not exceed. Two limits are frequently defined: operational limits that the component must remain within while operating and survival limits that the component must remain within at all times, even when not powered. Exceeding survival temperature limits can result in permanent equipment damage as opposed to out-of-tolerance performance when operational limits are exceeded. In this study we identified thermal control techniques and approaches and thermal control components that commonly used in observation and remote sensing satellites. My studies showed most observation satellites use passive control. It is because that passive thermal control is more reliable in comparison to the active thermal control. It is really interesting for designers and users, because passive thermal control is more reliable and need less power. Also it is less expensive instead of active thermal control that is expensive. Passive thermal control techniques available to the engineer consist essentially of selection of surface properties the control of conduction paths and thermal capacities and the use of insulation systems. Passive facilities include surface finishes, conduction paths, heat pipe and phase change material and two phase material and insulation systems
