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Record 10 of 79
Heated-Atmosphere Airship for the Titan Environment: Thermal Analysis
NTRS Full-Text: Click to View  [PDF Size: 644 KB]
Author and Affiliation:
Heller, R. S.(Massachusetts Inst. of Tech., Cambridge, MA, United States)
Landis, G. A.(NASA Glenn Research Center, Cleveland, OH, United States)
Hepp, A. F.(NASA Glenn Research Center, Cleveland, OH, United States)
Colozza, A. J.(QinetiQ North America, Cleveland, OH, United States)
Abstract: Future exploration of Saturn's moon Titan can be carried out by airships. Several lighter-than-atmosphere gas airships and passive drifting heated-atmosphere balloon designs have been studied, but a heated-atmosphere airship could combine the best characteristics of both. This work analyses the thermal design of such a heated-atmosphere vehicle, and compares the result with a lighter-than-atmosphere (hydrogen) airship design. A design tool was created to enable iteration through different design parameters of a heated-atmosphere airship (diameter, number of layers, and insulating gas pocket thicknesses) and evaluate the feasibility of the resulting airship. A baseline heated-atmosphere airship was designed to have a diameter of 6 m (outer diameter of 6.2 m), three-layers of material, and an insulating gas pocket thickness of 0.05 m between each layer. The heated-atmosphere airship has a mass of 161.9 kg. A similar mission making use of a hydrogen-filled airship would require a diameter of 4.3 m and a mass of about 200 kg. For a long-duration mission, the heated-atmosphere airship appears better suited. However, for a mission lifetime under 180 days, the less complex hydrogen airship would likely be a better option.
Publication Date: Jul 01, 2012
Document ID:
20120012527
(Acquired Aug 08, 2012)
Subject Category: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number: NASA/TM-2012-217639, E-18250
Document Type: Technical Report
Meeting Information: Earth and Space 2012 Conference; 15-18 Apr. 2012; Pasadena, CA; United States
Meeting Sponsor: American Society of Civil Engineers; United States
Contract/Grant/Task Num: WBS 387498.01.03.02.05
Financial Sponsor: NASA Glenn Research Center; Cleveland, OH, United States
Organization Source: NASA Glenn Research Center; Cleveland, OH, United States
Description: 9p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: THERMAL ANALYSIS; AIRSHIPS; TITAN; PLANETARY ATMOSPHERES; THERMOELECTRIC GENERATORS; HEAT GENERATION; HYDROGEN; IN SITU RESOURCE UTILIZATION; MISSION PLANNING; BUOYANCY; DESIGN ANALYSIS; SPACECRAFT DESIGN; WEIGHT (MASS); COMPARISON
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