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1 Ιαν 2022 · The A380 makes use of an air-hydraulic heat exchanger with a dual matrix and a back-up fuel-hydraulic heat exchanger, located on the return line, upstream of the reservoir. The A350 hydraulic thermal management is more sophisticated, as provision is made for both fluid heating and cooling.
- Thermal Analysis and Modeling of Surface Heat Exchangers Operating in The Transonic Regime
1. Introduction. Lubrication heat load is of particular...
- Evolution of Rolls-Royce Air-Cooled Turbine Blades and Feature Analysis
In this procedure, heat absorbed by the blade surface from...
- Thermal Analysis and Modeling of Surface Heat Exchangers Operating in The Transonic Regime
26 Απρ 2017 · The process of design of aviation heat exchangers occurs with an increase in the power stress and servicing energy systems that must be cooled. At moderate flight speeds, the systems of aviation engines, lubricants, and different equipment and optional energy systems can be cooled with heat exchangers using free air or other carriers.
The most common type employed is the indirect-contact heat exchanger. In direct-contact exchangers, heat transfer between fluids occurs through direct interaction, ideally without mixing or leakage. The fluids come into direct contact, exchange heat, and are then separated.
An air/fuel heater uses warm compressor bleed air to heat the fuel. An oil/fuel exchanger heats the fuel with hot engine oil. This latter type is often referred to as a fuel-cooled oil cooler (FCOC).
The Thermal Management Roadmap Report summarises the heat exchanger technologies considered essential for enabling zero-carbon liquid hydrogen fuelled aircraft. Competitive heat exchanger technologies are also outlined for later Entry Into Service (EIS) aircraft.
heat exchanger concepts, namely, microchannel and phase change heat exchangers. Detailed conceptual design and performance models for these as well as for a conventional plate-fin compact heat exchanger are developed and their design and performance optimized relative to the criterion of minimum dry weight.
25 Ιουν 2018 · This study compares the performance of conventionally-built plate-fin air–liquid crossflow heat exchangers (i.e., aircraft oil coolers) to additively manufactured heat exchangers of similar geometry.
