TY - GEN
T1 - Fabrication and testing of a passive re-deployable radiator for Autonomous thermal control
AU - Nagano, Hosei
AU - Matsumoto, Kan
AU - Ohnishi, Akira
AU - Higuchi, Ken
AU - Nagasaka, Yuji
PY - 2007/12/1
Y1 - 2007/12/1
N2 - This paper presents the development of a lightweight 100W-class re-deployable radiator with environmentadaptive functions. This radiator, reversible thermal panel (RTP), which consists of flexible high thermal conductive graphite sheets and a single crystal shape memory alloy as a passive reversible actuator, changes its function from a radiator to a solar absorber by deploying/stowing the reversible fin upon changes in the heat dissipation and thermal environment. A deployment/stowing test in atmospheric condition and a thermal vacuum test were conducted. The fin deployment angle could be changed from 0 deg to 140 deg with the change of the RTP temperature from -40 C to +40 C in the deployment/stowing test using a constant temperature chamber. Autonomous thermal control function was demonstrated in the thermal vacuum test although the fin could not be entirely stowed under cold condition.
AB - This paper presents the development of a lightweight 100W-class re-deployable radiator with environmentadaptive functions. This radiator, reversible thermal panel (RTP), which consists of flexible high thermal conductive graphite sheets and a single crystal shape memory alloy as a passive reversible actuator, changes its function from a radiator to a solar absorber by deploying/stowing the reversible fin upon changes in the heat dissipation and thermal environment. A deployment/stowing test in atmospheric condition and a thermal vacuum test were conducted. The fin deployment angle could be changed from 0 deg to 140 deg with the change of the RTP temperature from -40 C to +40 C in the deployment/stowing test using a constant temperature chamber. Autonomous thermal control function was demonstrated in the thermal vacuum test although the fin could not be entirely stowed under cold condition.
KW - Autonomous thermal control
KW - Deployable radiator
KW - High thermal conductivity graphite sheet
KW - Single crystal shape memory alloy
KW - Spacecraft thermal control
UR - http://www.scopus.com/inward/record.url?scp=77957982636&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957982636&partnerID=8YFLogxK
U2 - 10.1063/1.2437436
DO - 10.1063/1.2437436
M3 - Conference contribution
AN - SCOPUS:77957982636
SN - 9780735403864
T3 - AIP Conference Proceedings
SP - 19
EP - 26
BT - Space Technology and Applications International Forum, STAIF 2007, including Co-located Conferences
T2 - Space Technology and Applications International Forum: Space Renaissance: Inspiring the Next Generation, STAIF-2007
Y2 - 11 February 2007 through 15 February 2007
ER -