COMET Service Module Capillary Pumped Loop Thermal Control System Test Results

1993 ◽  
Author(s):  
James Seokgeun Yun ◽  
Edward Kroliczek ◽  
Susan Roukis Clayton
Keyword(s):  
Control System ◽  
Thermal Control ◽  
Test Results ◽  
Capillary Pumped Loop ◽  
Service Module ◽  
Thermal Control System

Testing of a controller for a hybrid capillary pumped loop thermal control system

2003 ◽  
Author(s):  
R. Schweickart ◽  
L. Ottenstein ◽  
B. Cullimore ◽  
C. Egan ◽  
D. Wolf
Keyword(s):  
Control System ◽  
Thermal Control ◽  
Capillary Pumped Loop ◽  
Thermal Control System

Autonomous Thermal Control System for Highly Variable Environments

2009 ◽  
Vol 131 (6) ◽  
Author(s):  
G. A. Richardson
Keyword(s):  
Control System ◽  
Ambient Temperature ◽  
Temperature Drop ◽  
Thermal Control ◽  
Outdoor Environment ◽  
Thermal Mass ◽  
Test Results ◽  
Thermo Electric ◽  
Mass System ◽  
Thermal Control System

An autonomous thermal control system has been developed for instruments with steady temperature requirements that are exposed to widely varying environmental conditions. The active thermal control system uses thermo-electric (Peltier) coolers with a programmable power supply, digital temperature sensors, and on-board proportional differential logic to track and predict temperature variations. This system is designed for instruments with large thermal mass and thermally sensitive electronic components that would be effected by variabilities in the local outdoor environment including weather, sunrise, and sunset. Presented are the test results of the design showing the temperature stayed within ±0.125°C during smooth ambient temperature changes (27°C ambient change over 80 min), remained within +0.375/−0.6875°C under a sharp ambient temperature drop (27°C sudden drop), and remained within +0.25/−0.875°C when random variabilities in the ambient were introduced (2–10°C degree variabilities over the time frame of minutes). For the thermal control system and test results presented, it is shown that several calibration and design points must be considered for a large thermal mass system in order to achieve steady thermal control. The system presented is capable of maintaining steady thermal control within the given constraints.

PROCEDURE AND TOOLS FOR DEVELOPING THERMAL CONTROL SYSTEM FOR SCIENTIFIC SPACECRAFT EQUIPMENT

2013 ◽  
Vol 4 (3) ◽  
pp. 169-180
Author(s):  
S. A. Hryshyn ◽  
A. G. Batischev ◽  
S. V. Koldashov ◽  
Aliaksei L. Petsiuk ◽  
V. A. Seliantev ◽  
...  
Keyword(s):  
Control System ◽  
Thermal Control ◽  
Thermal Control System
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