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Cryogenic Propellant Thermal-Fluid Management for Chemical and Nuclear Spacecraft Propulsion: Importance, Physics, and Zero-Boil-Off Strategies

Jacob Nan-Chu Chung
April 29, 2026
Published Date

Research Abstract & Technology Focus

Cryogenic propellants such as liquid hydrogen (LH₂), liquid oxygen (LOX), and liquid methane (LCH₄) are critical to high-performance chemical and nuclear propulsion systems. However, their storage, transfer, and utilization in space environments are fundamentally constrained by heat ingress from external environment, phase-change boiloff loss, and complex two-phase flow dynamics under reduced gravity and microgravity. This paper outlines the importance of cryogenic thermal-fluid management (TFM), identifies the governing physical processes, and presents key system elements required for reliable long-duration propellant storage and transfer. Particular emphasis is placed on Zero-Boil-Off (ZBO) technologies, which are essential for enabling in-space refueling, propellant depots, and nuclear thermal propulsion missions.
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Correlated Market Trend: Aerospace Engineering

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Frequently Asked Questions (FAQ)

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What is the core focus of the research titled 'Cryogenic Propellant Thermal-Fluid Management for Chemical and Nuclear Spacecraft Propulsion: Importance, Physics, and Zero-Boil-Off Strategies'?

This literature focuses on: Cryogenic propellants such as liquid hydrogen (LH₂), liquid oxygen (LOX), and liquid methane (LCH₄) are critical to high-performance chemical and nuclear propulsion systems. However, their storage, transfer, and utilization in space environments a...

What other academic literature is closely related to 'Cryogenic Propellant Thermal-Fluid Management for Chemical and Nuclear Spacecraft Propulsion: Importance, Physics, and Zero-Boil-Off Strategies'?

Yes, highly correlated activity was mapped. An entry titled 'SPRAY CHARACTERIZATION, CRITICAL HEAT FLUX AND FLOW BOILING PHYSICS OF CRYOGENS UNDER TERRESTRIAL AND MICROGRAVITY CONDITIONS' discusses this: With the growing interest in space exploration, cryogenic technologies involving two-phase flow and heat transfer are in high demand to successfull...

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