Results 41 to 50 of about 48,816 (291)

Heat Transfer Analysis and Structural Optimization for Spiral Channel Regenerative Cooling Thrust Chamber

open access: yesInternational Journal of Aerospace Engineering, 2023
There is currently a lack of efficient heat transfer analysis methodologies for spiral channel regenerative cooling that has been increasingly applied in liquid rocket engines.
Junjie Lv   +3 more
doaj   +1 more source

Cooling Performance Analysis of Regeneratively Cooled Combustion Chamber

open access: yesJournal of the Korean Society for Aeronautical & Space Sciences, 2004
A regenerative cooling system has been designed through empirical 1-D analysis for a liquid rocket engine of 30-ton-level thrust. The hot-gas-side wall temperature from 1-D analysis shows 100K difference compared to 3D CFD analysis. Two variations of design with same cooling performance are suggested for different maximum channel widths i.e., 4mm and ...
openaire   +2 more sources

Combustion chamber Patent [PDF]

open access: yes, 1969
Regenerative cooling system for rocket combustion chamber using coolant tubes in convergent-divergent ...
Gregory, J. W.
core   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Experiments on Heat Transfer of Supercritical Pressure Kerosene in Mini Tube under Ultra-High Heat Fluxes

open access: yesEnergies, 2020
Heat transfer of supercritical-pressure kerosene is crucial for regenerative cooling systems in rocket engines. In this study, experiments were devoted to measure the heat transfer of supercritical-pressure kerosene under ultra-high heat fluxes.
Jianguo Yan   +3 more
doaj   +1 more source

New method used to fabricate light-weight heat exchanger for rocket motor [PDF]

open access: yes, 1964
A grooved capstrip, to straddle the metal edges of regenerative cooling channels, increases the strength and heat transfer characteristics of lightweight motor cases. This capstrip is so designed as to form a firm joint between the channels that form the
Baehr, E. F.
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

Research and application of white smoke treatment and water recovery of 300 MW unit

open access: yesEnergy Reports, 2022
For a 300 MW coal-fired unit, the regenerative heat exchanger is used to design a regenerative heat exchanger cooling water collection and hot air reheat white smoke treatment and water recovery system.
Shanshan Zhang, Qiaoling Wu, Haihong Ji
doaj   +1 more source

Modeling and analysis of regenerative cooling channels for scramjet engine [PDF]

open access: yesMATEC Web of Conferences, 2020
This paper presents a CFD simulation analysis method for the regenerative cooling channel of a supercombustion ramjet engine, and performs three-dimensional modeling and analysis.
Gao Feng   +4 more
doaj   +1 more source

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