scholarly journals On-Orbit Thermal Design and Validation of 1 U Standardized CubeSat of STEP Cube Lab

2016 ◽  
Vol 2016 ◽  
pp. 1-17 ◽  
Author(s):  
Soo-Jin Kang ◽  
Hyun-Ung Oh
Keyword(s):  
Development Process ◽  
Thermal Balance ◽  
Thermal Design ◽  
Unit Size ◽  
Space Technology ◽  
Thermal Vacuum ◽  
Balance Test ◽  
Thermal Environments ◽  
Validation Test ◽  
Mission Objective

The Cube Laboratory for Space Technology Experimental Projects (STEP Cube Lab) is a cube satellite (CubeSat) classified as a pico-class satellite of 1 U (unit) size. Its main mission objective is to exploit core space technologies researched by domestic universities and verify the effectiveness of these technologies through on-orbit tests using the CubeSat. To guarantee a successful mission under extreme space thermal environments, proper thermal design is important. This paper describes the development process undertaken in the thermal design of the STEP Cube Lab, based on a passive approach, and its validation test. The system functionality and thermal design were verified through thermal vacuum and thermal balance tests under space simulated thermal vacuum environment condition. Finally, the orbital temperature of each component was predicted using a highly reliable correlated thermal mathematical model of the CubeSat obtained from the thermal balance test.

AMS-02 Thermal Vacuum and Thermal Balance Test in the LSS at ESTEC

2011 ◽  
Author(s):  
Marco Molina ◽  
Paolo Ruzza ◽  
Christian Vettore ◽  
Serena Borsini ◽  
Elisa Laudi
Keyword(s):  
Thermal Balance ◽  
Thermal Vacuum ◽  
Balance Test

Study on Mechanism of Molybdenum Concentrate Carbon-Free Roasting

2012 ◽  
Vol 588-589 ◽  
pp. 1685-1688 ◽  
Author(s):  
Lian Yong Wang ◽  
Jing Fan Zhang ◽  
Lei Dai ◽  
Jiu Ju Cai
Keyword(s):  
Technical Analysis ◽  
Economic Benefits ◽  
Thermal Balance ◽  
Environmental Benefits ◽  
Heat Of Reaction ◽  
Balance Test ◽  
Operating Process ◽  
Output Quality ◽  
Molybdenum Concentrate

Technical analysis was used to analyze the roasting of molybdenum concentrate on the basis of thermal balance test of rotary furnaces used for Roasting, and the results indicate that, on the condition of commercial production, the Roasting of MoS2 can occur spontaneously because the heat of reaction is so much that proper cooling measures should be adopted in case overheating happens. According to above analysis, carbon-free roasting technology of molybdenum concentrate was proposed in this paper. The results, which come from thermal balance test and technical analysis of rotary furnaces used for carbon-free roasting of molybdenum concentrate, indicate that outer heat source used in traditional Roasting technology is not needed in carbon-free roasting technology, because enough heat is generated during Roasting to ensure spontaneous reaction. In fact, heating is not needed in operating process except at the beginning, to make molybdenum concentrate catching fire, and when reaction completing, to remove residual sulphur. The technology in this paper is obviously advantageous in aspects of energy saving, output, quality of production, heat loss, the concentration of SO2 in flue gas, etc. and will have remarkable environmental benefits, economic benefits and social benefits.

Methodology of Thermal Balance Test for Diesel engines

2008 ◽  
Author(s):  
Luciano Tadeu Baffi Penhalbel ◽  
Edson Dias Ferreira ◽  
Jorge Paulo Dantas de Araújo ◽  
Mauro Roberto Souza Sobral ◽  
Flávio Benjamin Borges Moreira
Keyword(s):  
Diesel Engines ◽  
Thermal Balance ◽  
Balance Test

scholarly journals Data Raduction of Thermal Balance Test of Spacecraft

1970 ◽  
Vol 18 (199) ◽  
pp. 316-321
Author(s):  
Harumi TAKAHASHI ◽  
Koich OSHIMA
Keyword(s):  
Thermal Balance ◽  
Balance Test

Design and development of thermal test model of a micro‐satellite for thermal balance test

2008 ◽  
Vol 80 (1) ◽  
pp. 51-58 ◽  
Author(s):  
Gilbert Justin Jose Nesamani ◽  
Sunil Chandrakant Joshi ◽  
Zhanli Jin ◽  
Poh Keong Chan ◽  
Soon Cheng Lee
Keyword(s):  
Thermal Balance ◽  
Test Model ◽  
Design And Development ◽  
Balance Test ◽  
Thermal Test

scholarly journals The Design of Large Arc-shape High-precision Walking Device in TV (thermal-vacuum) Conditions

2018 ◽  
Vol 237 ◽  
pp. 03014
Author(s):  
Xue Lian ◽  
Nan Hua ◽  
Liu Jiaqi ◽  
Liu Xin ◽  
Meng Gang
Keyword(s):  
High Precision ◽  
Optical Image ◽  
Thermal Design ◽  
Space Environment ◽  
Test Facility ◽  
Simulation Test ◽  
Thermal Vacuum ◽  
Arc Shape ◽  
Environment Simulation ◽  
Environmental Simulation

The large-sized space environmental simulation test facility is mainly used for providing thermal radiation environment in high-vacuum, cold and dark space for satellites, spacecraft, lunar spacecraft to carry out whole satellite thermal vacuum test and for large equipment like antenna to carry out tests in TV conditions. Monitoring the spacecraft’s surface optical image or temperature is a main task in space environment simulation test. In previous tests, optical image test mainly took place in a fixed position, so the measuring location and angle are limited. This paper focuses on large spherical space environmental simulation test facility, and designs a large arc-shape high-precision walking device in a space environment simulation test device. It introduces key technology in detail like structure design, thermal design, processes and manufacturing, etc. The test results show that this device can work steadily and reliably under simulation space environments, and the precision exceeds 0.5°.

Display Systems Development Logic

1981 ◽  
Vol 25 (1) ◽  
pp. 119-121
Author(s):  
Jon G. Rogers
Keyword(s):  
Human Factors ◽  
Development Process ◽  
Systems Development ◽  
Flow Chart ◽  
Final Configuration ◽  
Communication Aid ◽  
Display Systems ◽  
Mission Objective

A display systems development logic is described which has proved useful as a communication aid in assuring human factors input in the development process. The logic in the form of a flow chart begins with an examination of the system mission objective and works the display problem to the final configuration. The procedure is thorough, systematic and assures attention to basic human factors data and standards.

Validation of a Strategy for Deformation Monitoring of the Herschel Spacecraft Under Ambient Conditions by Photogrammetry

2009 ◽  
Vol 52 (1) ◽  
pp. 20-42
Author(s):  
Jafar Parian ◽  
Alessandro Cozzani ◽  
Matteo Appolloni ◽  
Gianluca Casarosa
Keyword(s):  
Local Oscillator ◽  
Deformation Monitoring ◽  
Ambient Conditions ◽  
Thermal Vacuum ◽  
Large Space ◽  
Balance Test ◽  
Vacuum Chambers ◽  
Network Simulations ◽  
Set Up ◽  
Global Accuracy

In the frame of the development of a videogrammetric system to be used in thermal/vacuum chambers at the ESA-ESTEC and other sites across Europe, the design of a network using micro-cameras was specified by ESA-ESTEC. The selected test set-up is the photogrammetric test of the Herschel Spacecraft Flight Model in the ESTEC Large Space Simulator. The videogrammetric system will be used to verify the Herschel Telescope alignment and Telescope positioning with respect to the Local Oscillator Unit inside the Large Space Simulator during thermal/vacuum/balance test phases. We designed a close-range photogrammetric network by heuristic simulation with a global accuracy of 1:100,000. A thermal/vacuum qualified videogrammetric system, which is able to work in vacuum and at cryo-temperatures in order to acquire images according to the designed network, was constructed by ESA-ESTEC Test Centre Division. In this paper we will present the videogrammetric system, the photogrammetric considerations, accuracy aspects, the result of photogrammetric network simulations, and real measurements. The results of real videogrammetric measurements of a dummy setup similar to the setup of Herschel spacecraft show a successful performance of the system in terms of functionality and accuracy.

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