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

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.

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

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.

Integrated Thermal-Structural Analysis of a Reflecting Optical System with All Metal Components

2014 ◽  
Vol 1061-1062 ◽  
pp. 818-821
Author(s):  
Ban Lv ◽  
Guo Li Wang ◽  
Yu Yang
Keyword(s):  
Structural Analysis ◽  
Low Temperature ◽  
Ambient Temperature ◽  
Optical System ◽  
System Performance ◽  
Thermal Deformation ◽  
Thermal Balance ◽  
Optical Analysis ◽  
Balance Test ◽  
Full Analysis

The thermal deformation of reflecting optical system in the ambient temperature affects the system performance greatly. Based on the results of thermal balance test, the paper has made a full analysis to the deformation of reflecting optical system on the high-low temperature using the finite elemernt method,so as to validate whether the optical system meet the requirement of optical image design and temperature. This method can combine the thermal optical analysis and thermal balance test data effectively ,and therefore the most actual thermal optical anslysis model can be obtained to guide the concept and optimization of reflecting optical system.

Qualification of the Setup to Simulate the External Thermal Balance Test of the CBERS-2B Satellite Using a Infrared Lamp Technique

2006 ◽  
Author(s):  
Herbert Paula de Vasconcelos ◽  
Ezio Castejon Garcia ◽  
Eduardo de Oliveira Pontes ◽  
Márcio Bueno dos Santos
Keyword(s):  
Thermal Balance ◽  
Balance Test ◽  
Infrared Lamp
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