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  1. 1 Ιαν 2022 · In surface heat exchangers, the hot fluid (which could be, for example, oil, water, air, or some other cooling fluid) is directly in contact with the airframe skin, which, in turn, is directly in contact with the ambient air.

  2. 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.

  3. 26 Απρ 2017 · The literature on aviation heat exchangers is voluminous and continues to be updated today. Two main aspects of this class of flow systems are widely investigated: fluid flow and heat transfer performances, and criteria for evaluating those performances.

  4. 5 Ιουν 2023 · Instead of employing heat exchangers, the aircraft’s outside skin is employed to reject heat. It does so by having a system of pipes through which the cooling liquid needed to cool the fuel cells and the powertrain is circulated and re-cooled.

  5. 26 Απρ 2017 · An appropriate liquid cooling system and corresponding heat exchanger are sized in a preliminary manner and their impact at the aircraft performance is assessed, among others the additional...

  6. 1 Σεπ 2018 · Thermal Science and Engineering Progress. Aircraft air conditioning heat exchangers and atmospheric fouling. Aircraft gas turbine start, lube oil is burnt, and oil vapour fouls other aircraft. Foulant debris is naturally occurring and from aircraft op’s (inc. vehicle op’s).

  7. With the help of the digital control technology, fuel/hydraulic oil heat ex-changer can utilise a part of overall thermal load to help the required fuel burn sufficiently [1, 4–6]. Thermal load is mainly generated by idle power loss and oil leakage in hydraulic components.

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