Design Optimization of Thermal Paths in Spacecraft Systems - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Design Optimization of Thermal Paths in Spacecraft Systems write by Kevin Dale Stout. This book was released on 2013. Design Optimization of Thermal Paths in Spacecraft Systems available in PDF, EPUB and Kindle. This thesis introduces a thermal design approach to increase thermal control system performance and decrease reliance on system resources, e.g., mass. Thermal design optimization has lagged other subsystems because the thermal subsystem is not thought to significantly drive performance or resource consumption. However, there are factors present in many spacecraft systems that invalidate this assumption. Traditional thermal design methods include point designs where experts make key component selection and sizing decisions. Thermal design optimization literature primarily focuses on optimization of the components in isolation from other parts of the thermal control system, restricting the design space considered. The collective thermal design optimization process formulates the thermal path design process as an optimization problem where the design variables are updated for each candidate design. Parametric model(s) within the optimizer predict the performance and properties of candidate designs. The thermal path parameterization captures the component interactions with each other, the system, and the space environment, and is critical to preserving the full design space. The optimal design is a thermal path with higher performance and decreased resource consumption compared to traditional thermal design methods. The REgolith X-ray Imaging Spectrometer (REXIS) payload instrument serves as a case study to demonstrate the collective thermal design optimization process. First, a preliminary thermal control system model of a point design is used to determine the critical thermal path within REXIS: the thermal strap and radiator assembly. The collective thermal design optimization process is implemented on the thermal strap and radiator thermal path. Mass minimization is the objective and the REXIS detector operational temperature is a constraint to the optimization. This approach offers a 37% reduction in mass of the thermal strap and radiator assembly over a component-level optimization method.
Spacecraft Thermal Design Optimization
Spacecraft Thermal Design Optimization - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Spacecraft Thermal Design Optimization write by Navin Chari. This book was released on 2009. Spacecraft Thermal Design Optimization available in PDF, EPUB and Kindle. Spacecraft thermal design is an inverse problem that requires one to determine the choice of surface properties that yield a desired temperature distribution within a satellite. The current techniques for spacecraft thermal design are very much in the frame of trial and error. The goal of this work is to move away from that procedure, and have the thermal design solely dependent on heat transfer parameters. It will be shown that the only relevant parameters to attain this are ones which pertain to radiation. In particular, these parameters are absorptivity and emissivity. We intend to utilize an optimal/analytical approach, and obtain a solution via optimization. As mentioned in the motivation, having a purely passive thermal system will greatly reduce costs, and our optimization solution will enable that. This topic involves heat transfer (conduction and radiation), spacecraft thermal network models, numerical optimization, and materials selection.
Spacecraft Thermal Control Technologies
Spacecraft Thermal Control Technologies - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Spacecraft Thermal Control Technologies write by Jianyin Miao. This book was released on 2020-08-19. Spacecraft Thermal Control Technologies available in PDF, EPUB and Kindle. This book presents fundamental theories, design and testing methodologies, and engineering applications concerning spacecraft thermal control systems, helping readers gain a comprehensive understanding of spacecraft thermal control systems and technologies. With abundant design methods, advanced technologies and typical applications to help them grasp the basic concepts and principles of engineering applications, it is mainly intended for engineering and technical staff engaged in spacecraft thermal control areas. The book discusses the thermal environments commonly used for space flight missions, rules and regulations for system design, thermal analysis and simulation, and thermal testing methods, as well as the design and validation of the thermal control systems for Chinese spacecraft, such as the Shenzhou spacecraft and Chang’e Lunar Lander and Rover. It also introduces them to communication and remote sensing satellites and presents advanced thermal control technologies developed in recent years, including heat transfer, heat insulation, heating, refrigeration and thermal sensor technologies. Addressing the design and validation of thermal control systems for various types of Chinese spacecraft, the book offers a valuable theoretical and practical reference guide for researchers and engineers alike.
Introduction to Spacecraft Thermal Design
Introduction to Spacecraft Thermal Design - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Introduction to Spacecraft Thermal Design write by Eric A. Silk. This book was released on 2020-07-09. Introduction to Spacecraft Thermal Design available in PDF, EPUB and Kindle. Develop a fundamental understanding of heat transfer analysis techniques as applied to earth based spacecraft with this practical guide. Written in a tutorial style, this essential text provides a how-to manual tailored for those who wish to understand and develop spacecraft thermal analyses. Providing an overview of basic heat transfer analysis fundamentals such as thermal circuits, limiting resistance, MLI, environmental thermal sources and sinks, as well as contemporary space based thermal technologies, and the distinctions between design considerations inherent to room temperature and cryogenic temperature applications, this is the perfect tool for graduate students, professionals and academic researchers.
Thermal Design Principles of Spacecraft and Entry Bodies
Thermal Design Principles of Spacecraft and Entry Bodies - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Thermal Design Principles of Spacecraft and Entry Bodies write by Jerry Bevans. This book was released on 2012-12-02. Thermal Design Principles of Spacecraft and Entry Bodies available in PDF, EPUB and Kindle. Progress in Astronautics and Aeronautics, Volume 21: Thermal Design Principles of Spacecraft and Entry Bodies is a collection of technical papers drawn mainly from the American Institute of Aeronautics and Astronautics Third Thermophysics Specialist Conference, held in Los Angeles, California on June 24-26, 1968 This volume is divided into three parts. The first part covers some aspects of thermal processes and design, including thermal analysis, convection, radiation, ablation, and space rocket effects. The second part surveys the remote measurements of the thermophysical and thermal radiation properties and joint conductance, which are critical criteria for space thermal design. The third part focuses on the space environmental effects on thermal coatings. This part deals first with the theory of radiative degradation, followed by a presentation of the laboratory measurements. This part also looks into the results of several flight experiments. This book will be of great value to thermophysicists, space engineers, and designers who are working in the space science fields.
