Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 36
Book Description
Application of Formal Optimization Techniques in Thermal/structural Design of a Heat-pipe-cooled Panel for a Hypersonic Vehicle
Application of Formal Optimization Techniques in Thermal/Structural Design of a Heat-Pipe-Cooled Panel for a Hypersonic Vehicle
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725985414
Category :
Languages : en
Pages : 32
Book Description
Nonlinear mathematical programming methods are used to design a radiantly cooled and heat-pipe-cooled panel for a Mach 6.7 transport. The cooled portion of the panel is a hybrid heat-pipe/actively cooled design which uses heat pipes to transport the absorbed heat to the ends of the panel where it is removed by active cooling. The panels are optimized for minimum mass and to satisfy a set of heat-pipe, structural, geometric, and minimum-gage constraints. Two panel concepts are investigated: cylindrical heat pipes embedded in a honeycomb core and an integrated design which uses a web-core heat-pipe sandwich concept. The latter was lighter and resulted in a design which was less than 10 percent heavier than an all actively cooled concept. The heat-pipe concept, however, is redundant and can sustain a single-point failure, whereas the actively cooled concept cannot. An additional study was performed to determine the optimum number of coolant manifolds per panel for a minimum-mass design. Camarda, Charles J. and Riley, Michael F. Langley Research Center NASA-TM-89131, L-16134, NAS 1.15:89131 RTOP 505-62-81-05...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725985414
Category :
Languages : en
Pages : 32
Book Description
Nonlinear mathematical programming methods are used to design a radiantly cooled and heat-pipe-cooled panel for a Mach 6.7 transport. The cooled portion of the panel is a hybrid heat-pipe/actively cooled design which uses heat pipes to transport the absorbed heat to the ends of the panel where it is removed by active cooling. The panels are optimized for minimum mass and to satisfy a set of heat-pipe, structural, geometric, and minimum-gage constraints. Two panel concepts are investigated: cylindrical heat pipes embedded in a honeycomb core and an integrated design which uses a web-core heat-pipe sandwich concept. The latter was lighter and resulted in a design which was less than 10 percent heavier than an all actively cooled concept. The heat-pipe concept, however, is redundant and can sustain a single-point failure, whereas the actively cooled concept cannot. An additional study was performed to determine the optimum number of coolant manifolds per panel for a minimum-mass design. Camarda, Charles J. and Riley, Michael F. Langley Research Center NASA-TM-89131, L-16134, NAS 1.15:89131 RTOP 505-62-81-05...
Scientific and Technical Aerospace Reports
Energy Research Abstracts
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1200
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1200
Book Description
Monthly Catalogue, United States Public Documents
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1430
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1430
Book Description
Research and Technology Plans for FY 1989 and Accomplishments for FY 1988
Aeronautical Engineering
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 568
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 568
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).